diff --git a/annotated.html b/annotated.html index 9715b3f..59675c6 100644 --- a/annotated.html +++ b/annotated.html @@ -71,7 +71,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> - All Data Structures Files Functions Variables Typedefs Macros Pages + All Data Structures Files Functions Variables Typedefs Pages
@@ -95,7 +95,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
-Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
diff --git a/classes.html b/classes.html index 7d94b0c..92530eb 100644 --- a/classes.html +++ b/classes.html @@ -71,7 +71,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> - All Data Structures Files Functions Variables Typedefs Macros Pages + All Data Structures Files Functions Variables Typedefs Pages
@@ -99,7 +99,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
-Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
diff --git a/decrypt_8h.html b/decrypt_8h.html index fd288a5..bb30df4 100644 --- a/decrypt_8h.html +++ b/decrypt_8h.html @@ -4,7 +4,7 @@ -post quantum cryptography: /home/travis/build/hasufell/pqc/include/decrypt.h File Reference +post quantum cryptography: decrypt.h File Reference @@ -69,7 +69,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> - All Data Structures Files Functions Variables Typedefs Macros Pages + All Data Structures Files Functions Variables Typedefs Pages
@@ -78,10 +78,6 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
-
@@ -99,9 +95,9 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
Include dependency graph for decrypt.h:
-
- - +
+ +

Go to the source code of this file.

@@ -156,33 +152,20 @@ Functions
Parameters
- +
encr_msgthe encrypted message in the form of a string
priv_keythe polynom containing the private key to decrypt the message
priv_keythe polynomial containing the private key to decrypt the message
priv_key_invthe inverse polynome to the private key
paramsthe ntru_params
-
Returns
the decrypted string or NULL on failure
-

Decryption of a given encrypted string.

-
Parameters
- - - - - -
encr_msgthe encrypted message in the form of a string
priv_keythe polynom containing the private key to decrypt the message
priv_key_invthe inverse polynome to the private key
paramsthe ntru_params
-
-
-
Returns
the decrypted string
- -

Definition at line 92 of file ntru_decrypt.c.

+
Returns
the decrypted string or NULL on failure
-Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
diff --git a/decrypt_8h__incl.map b/decrypt_8h__incl.map index 1131961..ed86b42 100644 --- a/decrypt_8h__incl.map +++ b/decrypt_8h__incl.map @@ -1,3 +1,3 @@ - - + + diff --git a/decrypt_8h__incl.md5 b/decrypt_8h__incl.md5 index 2f3f458..e7a4a78 100644 --- a/decrypt_8h__incl.md5 +++ b/decrypt_8h__incl.md5 @@ -1 +1 @@ -fb24b66731f4f649376520135129d066 \ No newline at end of file +72dd9c38e8928e631b0cdf7d289bf155 \ No newline at end of file diff --git a/decrypt_8h__incl.png b/decrypt_8h__incl.png index f496123..3f8b8f2 100644 Binary files a/decrypt_8h__incl.png and b/decrypt_8h__incl.png differ diff --git a/decrypt_8h_source.html b/decrypt_8h_source.html index e4e2dc4..1745112 100644 --- a/decrypt_8h_source.html +++ b/decrypt_8h_source.html @@ -4,7 +4,7 @@ -post quantum cryptography: /home/travis/build/hasufell/pqc/include/decrypt.h Source File +post quantum cryptography: decrypt.h Source File @@ -64,12 +64,13 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
  • Globals
    • +
    - All Data Structures Files Functions Variables Typedefs Macros Pages
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    @@ -78,11 +79,6 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    - -
    decrypt.h
    @@ -129,12 +125,12 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    57 
    58 #endif /* PUBLIC_NTRU_DECRYPT_H_ */
    ntru.h
    public API, basic data types
    -
    ntru_decrypt_string
    string * ntru_decrypt_string(const string *encr_msg, const fmpz_poly_t priv_key, const fmpz_poly_t priv_key_inv, const ntru_params *params)
    Definition: ntru_decrypt.c:92
    -
    ntru_params
    Definition: ntru_params.h:43
    +
    ntru_decrypt_string
    string * ntru_decrypt_string(const string *encr_msg, const fmpz_poly_t priv_key, const fmpz_poly_t priv_key_inv, const ntru_params *params)
    +
    ntru_params
    Definition: ntru.h:47
    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
    diff --git a/dir_68267d1309a1af8e8297ef4c3efbcdba.html b/dir_68267d1309a1af8e8297ef4c3efbcdba.html deleted file mode 100644 index 8c4caab..0000000 --- a/dir_68267d1309a1af8e8297ef4c3efbcdba.html +++ /dev/null @@ -1,173 +0,0 @@ - - - - - - -post quantum cryptography: /home/travis/build/hasufell/pqc/src Directory Reference - - - - - - - - - -
    -
    - - - - - - -
    -
    post quantum cryptography -
    -
    Highly optimized implementation of the NTRUEncrypt algorithm
    -
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    - - - - - - - - -
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    src Directory Reference
    -
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    -Directory dependency graph for src:
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    /home/travis/build/hasufell/pqc/src
    - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

    -Files

    file  ntru_ascii_poly.c [code]
     ascii to polynomials
     
    file  ntru_ascii_poly.h [code]
     header for ntru_ascii_poly.c
     
    file  ntru_common.h [code]
     common macros/functions
     
    file  ntru_decrypt.c [code]
     NTRU decryption.
     
    file  ntru_decrypt.h [code]
     header for ntru_decrypt.c
     
    file  ntru_encrypt.c [code]
     NTRU encryption.
     
    file  ntru_encrypt.h [code]
     header for encrypt.c
     
    file  ntru_err.h [code]
     error handling
     
    file  ntru_file.c [code]
     file operations
     
    file  ntru_file.h [code]
     header for ntru_file.c
     
    file  ntru_keypair.c [code]
     key creation and operations
     
    file  ntru_keypair.h [code]
     header for ntru_keypair.c
     
    file  ntru_mem.c [code]
     memory management
     
    file  ntru_mem.h [code]
     header for ntru_mem.c
     
    file  ntru_params.h [code]
     NTRU parameters.
     
    file  ntru_poly.c [code]
     operations on polynomials
     
    file  ntru_poly.h [code]
     header for ntru_poly.c
     
    file  ntru_poly_ascii.c [code]
     polynomials to acii
     
    file  ntru_poly_ascii.h [code]
     header for ntru_poly_ascii.c
     
    file  ntru_rnd.c [code]
     random polynomials
     
    file  ntru_rnd.h [code]
     header for ntru_rnd.c
     
    file  ntru_string.c [code]
     string type and operations
     
    file  ntru_string.h [code]
     header for ntru_string.c
     
    -
    - -
    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   -doxygen - 1.8.7 -
    - - diff --git a/dir_68267d1309a1af8e8297ef4c3efbcdba_dep.map b/dir_68267d1309a1af8e8297ef4c3efbcdba_dep.map deleted file mode 100644 index d8bb682..0000000 --- a/dir_68267d1309a1af8e8297ef4c3efbcdba_dep.map +++ /dev/null @@ -1,3 +0,0 @@ - - - diff --git a/dir_68267d1309a1af8e8297ef4c3efbcdba_dep.md5 b/dir_68267d1309a1af8e8297ef4c3efbcdba_dep.md5 deleted file mode 100644 index 0e72bc2..0000000 --- a/dir_68267d1309a1af8e8297ef4c3efbcdba_dep.md5 +++ /dev/null @@ -1 +0,0 @@ -ecc0aab54f5ba6a2126063459d871bbe \ No newline at end of file diff --git a/dir_68267d1309a1af8e8297ef4c3efbcdba_dep.png b/dir_68267d1309a1af8e8297ef4c3efbcdba_dep.png deleted file mode 100644 index 256aacc..0000000 Binary files a/dir_68267d1309a1af8e8297ef4c3efbcdba_dep.png and /dev/null differ diff --git a/dir_d44c64559bbebec7f509842c48db8b23.html b/dir_d44c64559bbebec7f509842c48db8b23.html deleted file mode 100644 index 018ca5f..0000000 --- a/dir_d44c64559bbebec7f509842c48db8b23.html +++ /dev/null @@ -1,119 +0,0 @@ - - - - - - -post quantum cryptography: /home/travis/build/hasufell/pqc/include Directory Reference - - - - - - - - - -
    -
    - - - - - - -
    -
    post quantum cryptography -
    -
    Highly optimized implementation of the NTRUEncrypt algorithm
    -
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    - - - - - - - - -
    - -
    - - -
    -
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    /home/travis/build/hasufell/pqc/include
    - - -
    - - - - - - - - - - - - - - - - - -

    -Files

    file  decrypt.h [code]
     public API, decryption
     
    file  encrypt.h [code]
     public API, encryption
     
    file  keypair.h [code]
     public API, key handling
     
    file  ntru.h [code]
     public API, basic data types
     
    file  rnd.h [code]
     public API, random polynomials
     
    -
    - -
    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   -doxygen - 1.8.7 -
    - - diff --git a/dir_d44c64559bbebec7f509842c48db8b23_dep.map b/dir_d44c64559bbebec7f509842c48db8b23_dep.map deleted file mode 100644 index b0b0095..0000000 --- a/dir_d44c64559bbebec7f509842c48db8b23_dep.map +++ /dev/null @@ -1,3 +0,0 @@ - - - diff --git a/dir_d44c64559bbebec7f509842c48db8b23_dep.md5 b/dir_d44c64559bbebec7f509842c48db8b23_dep.md5 deleted file mode 100644 index dc87a87..0000000 --- a/dir_d44c64559bbebec7f509842c48db8b23_dep.md5 +++ /dev/null @@ -1 +0,0 @@ -0949ded2bc36ea9f7de2d964cd6cf98d \ No newline at end of file diff --git a/dir_d44c64559bbebec7f509842c48db8b23_dep.png b/dir_d44c64559bbebec7f509842c48db8b23_dep.png deleted file mode 100644 index 8332be9..0000000 Binary files a/dir_d44c64559bbebec7f509842c48db8b23_dep.png and /dev/null differ diff --git a/doxygen_8dox.html b/doxygen_8dox.html index 64442ba..3cd9ebb 100644 --- a/doxygen_8dox.html +++ b/doxygen_8dox.html @@ -69,7 +69,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> - All Data Structures Files Functions Variables Typedefs Macros Pages + All Data Structures Files Functions Variables Typedefs Pages
    @@ -87,7 +87,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
    diff --git a/encrypt_8h.html b/encrypt_8h.html index 3862df0..60a3a84 100644 --- a/encrypt_8h.html +++ b/encrypt_8h.html @@ -4,7 +4,7 @@ -post quantum cryptography: /home/travis/build/hasufell/pqc/include/encrypt.h File Reference +post quantum cryptography: encrypt.h File Reference @@ -69,7 +69,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> - All Data Structures Files Functions Variables Typedefs Macros Pages + All Data Structures Files Functions Variables Typedefs Pages
    @@ -78,10 +78,6 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    -
    @@ -99,9 +95,9 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    Include dependency graph for encrypt.h:
    -
    - - +
    + +

    Go to the source code of this file.

    @@ -162,27 +158,14 @@ Functions -
    Returns
    the newly allocated encrypted string, NULL on failure
    -

    Encrypt a message in the form of a null-terminated char array and return a string.

    -
    Parameters
    - - - - - -
    msgthe message
    pub_keythe public key
    rndthe random poly (should have relatively small coefficients, but not restricted to {-1, 0, 1})
    paramsntru_params the ntru context
    -
    -
    -
    Returns
    the newly allocated encrypted string
    - -

    Definition at line 74 of file ntru_encrypt.c.

    +
    Returns
    the newly allocated encrypted string, NULL on failure
    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
    diff --git a/encrypt_8h__incl.map b/encrypt_8h__incl.map index 077af7d..cc642c3 100644 --- a/encrypt_8h__incl.map +++ b/encrypt_8h__incl.map @@ -1,3 +1,3 @@ - - + + diff --git a/encrypt_8h__incl.md5 b/encrypt_8h__incl.md5 index 2f576d6..96c3e4e 100644 --- a/encrypt_8h__incl.md5 +++ b/encrypt_8h__incl.md5 @@ -1 +1 @@ -6aad9be46b94806b9b3f39bcf0b88dd9 \ No newline at end of file +d865c2c2cae936ced9a44350d42213b0 \ No newline at end of file diff --git a/encrypt_8h__incl.png b/encrypt_8h__incl.png index d3d9ec7..cdfdd1e 100644 Binary files a/encrypt_8h__incl.png and b/encrypt_8h__incl.png differ diff --git a/encrypt_8h_source.html b/encrypt_8h_source.html index c9da5ea..811021d 100644 --- a/encrypt_8h_source.html +++ b/encrypt_8h_source.html @@ -4,7 +4,7 @@ -post quantum cryptography: /home/travis/build/hasufell/pqc/include/encrypt.h Source File +post quantum cryptography: encrypt.h Source File @@ -64,12 +64,13 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
  • Globals
    • + + All Data Structures Files Functions Variables Typedefs Pages
    @@ -78,11 +79,6 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    - -
    encrypt.h
    @@ -128,13 +124,13 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    57 
    58 
    59 #endif /* PUBLIC_NTRU_ENCRYPT_H_ */
    -
    ntru_encrypt_string
    string * ntru_encrypt_string(const string *msg, const fmpz_poly_t pub_key, const fmpz_poly_t rnd, const ntru_params *params)
    Definition: ntru_encrypt.c:74
    +
    ntru_encrypt_string
    string * ntru_encrypt_string(const string *msg, const fmpz_poly_t pub_key, const fmpz_poly_t rnd, const ntru_params *params)
    ntru.h
    public API, basic data types
    -
    ntru_params
    Definition: ntru_params.h:43
    +
    ntru_params
    Definition: ntru.h:47
    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
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    @@ -85,43 +85,18 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    Here is a list of all files with brief descriptions:
    -
    [detail level 12]
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +
     ▼ include
     decrypt.hPublic API, decryption
     encrypt.hPublic API, encryption
     keypair.hPublic API, key handling
     ntru.hPublic API, basic data types
     rnd.hPublic API, random polynomials
     ▼ src
     ntru_ascii_poly.cAscii to polynomials
     ntru_ascii_poly.hHeader for ntru_ascii_poly.c
     ntru_common.hCommon macros/functions
     ntru_decrypt.cNTRU decryption
     ntru_decrypt.hHeader for ntru_decrypt.c
     ntru_encrypt.cNTRU encryption
     ntru_encrypt.hHeader for encrypt.c
     ntru_err.hError handling
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     ntru_file.hHeader for ntru_file.c
     ntru_keypair.cKey creation and operations
     ntru_keypair.hHeader for ntru_keypair.c
     ntru_mem.cMemory management
     ntru_mem.hHeader for ntru_mem.c
     ntru_params.hNTRU parameters
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     ntru_rnd.cRandom polynomials
     ntru_rnd.hHeader for ntru_rnd.c
     ntru_string.cString type and operations
     ntru_string.hHeader for ntru_string.c
    + + + + +
     decrypt.hPublic API, decryption
     encrypt.hPublic API, encryption
     keypair.hPublic API, key handling
     ntru.hPublic API, basic data types
     rnd.hPublic API, random polynomials
    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
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    @@ -104,7 +104,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); : keypair
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    • -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
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    @@ -104,7 +104,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); : keypair
  • ptr -: string +: string
  • pub : keypair @@ -116,7 +116,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    • -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
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    - e -

    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
    diff --git a/globals_type.html b/globals_type.html index e0baf46..0f3f60a 100644 --- a/globals_type.html +++ b/globals_type.html @@ -69,7 +69,6 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
  • All
  • Functions
  • Typedefs
    • -
  • Macros
    • @@ -78,7 +77,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> - All Data Structures Files Functions Variables Typedefs Macros Pages + All Data Structures Files Functions Variables Typedefs Pages
    @@ -90,22 +89,19 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
     
    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
    diff --git a/graph_legend.html b/graph_legend.html index 086943f..cf7b550 100644 --- a/graph_legend.html +++ b/graph_legend.html @@ -64,7 +64,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> - All Data Structures Files Functions Variables Typedefs Macros Pages
    + All Data Structures Files Functions Variables Typedefs Pages
    @@ -144,7 +144,7 @@ A yellow dashed arrow denotes a relation between a template instance and the tem
    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
    diff --git a/index.html b/index.html index 15d4b05..30cddaa 100644 --- a/index.html +++ b/index.html @@ -64,7 +64,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> - All Data Structures Files Functions Variables Typedefs Macros Pages + All Data Structures Files Functions Variables Typedefs Pages
    @@ -105,7 +105,7 @@ Goals

    Optimizing the algorithm itself is not within our scope. However, the library may undergo heavy changes on the mathematical implementation of polynomial arithmetic, in order to optimize run-time behaviour.

    Algorithms

    -

    Most of the algorithms in ntru_poly.c, ntru_decrypt.c, ntru_encrypt.c and ntru_keypair.c are based on the pseudo-code from Efficient NTRU Implementations by Colleen Marie O'Rourke.

    +

    Most of the algorithms in ntru_poly.c, ntru_decrypt.c, ntru_encrypt.c and ntru_keypair.c are based on the pseudo-code from Efficient NTRU Implementations by Colleen Marie O'Rourke.

    Further work is based on Das NTRU-Kryptosystem von Anja Moldenhauer and the official NTRU Cryptosystems Technical Report #14.

    License

    @@ -143,7 +143,7 @@ References
    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
    diff --git a/keypair_8h.html b/keypair_8h.html index b5cb677..a8647f7 100644 --- a/keypair_8h.html +++ b/keypair_8h.html @@ -4,7 +4,7 @@ -post quantum cryptography: /home/travis/build/hasufell/pqc/include/keypair.h File Reference +post quantum cryptography: keypair.h File Reference @@ -69,7 +69,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> - All Data Structures Files Functions Variables Typedefs Macros Pages + All Data Structures Files Functions Variables Typedefs Pages
    @@ -78,10 +78,6 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    -
    @@ -103,9 +99,9 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    Include dependency graph for keypair.h:
    -
    - - +
    + +

    Go to the source code of this file.

    @@ -195,8 +191,6 @@ Functions -

    Definition at line 111 of file ntru_keypair.c.

    -
    @@ -238,8 +232,6 @@ Functions -

    Definition at line 96 of file ntru_keypair.c.

    - @@ -288,8 +280,6 @@ Functions -

    Definition at line 157 of file ntru_keypair.c.

    - @@ -330,8 +320,6 @@ Functions -

    Definition at line 132 of file ntru_keypair.c.

    - @@ -370,16 +358,6 @@ Functions

    Creates an NTRU key pair, consisting of public and private components.

    -
    Parameters
    - - - - - -
    fa random polynomial
    ga random polynomial
    pairstore private and public components here [out]
    paramsthe NTRU context
    -
    -
    -

    Creates an NTRU key pair, consisting of public and private components.

    Parameters
    @@ -389,9 +367,6 @@ Functions
    fa random polynomial
    -
    Returns
    true for success, false if f or g are not invertible (then the caller hast to try different ones)
    - -

    Definition at line 47 of file ntru_keypair.c.

    @@ -416,14 +391,12 @@ Functions -

    Definition at line 197 of file ntru_keypair.c.

    -
    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
    diff --git a/keypair_8h__incl.map b/keypair_8h__incl.map index 18fd83f..a7d1cbd 100644 --- a/keypair_8h__incl.map +++ b/keypair_8h__incl.map @@ -1,3 +1,3 @@ - - + + diff --git a/keypair_8h__incl.md5 b/keypair_8h__incl.md5 index 0997380..f2c08fb 100644 --- a/keypair_8h__incl.md5 +++ b/keypair_8h__incl.md5 @@ -1 +1 @@ -2b4a3f942ca05de6bc8500cbf9030539 \ No newline at end of file +5244a16f466f27cefc219ec159829f7d \ No newline at end of file diff --git a/keypair_8h__incl.png b/keypair_8h__incl.png index fa347ca..749a6b7 100644 Binary files a/keypair_8h__incl.png and b/keypair_8h__incl.png differ diff --git a/keypair_8h_source.html b/keypair_8h_source.html index a8e8e05..b7fa85c 100644 --- a/keypair_8h_source.html +++ b/keypair_8h_source.html @@ -4,7 +4,7 @@ -post quantum cryptography: /home/travis/build/hasufell/pqc/include/keypair.h Source File +post quantum cryptography: keypair.h Source File @@ -64,12 +64,13 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
  • Globals
    • + + All Data Structures Files Functions Variables Typedefs Pages
    @@ -78,11 +79,6 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    - -
    keypair.h
    @@ -123,10 +119,10 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    42 typedef struct keypair keypair;
    43 
    44 
    -
    49 struct keypair {
    -
    54  fmpz_poly_t priv;
    -
    59  fmpz_poly_t priv_inv;
    -
    64  fmpz_poly_t pub;
    +
    49 struct keypair {
    +
    54  fmpz_poly_t priv;
    +
    59  fmpz_poly_t priv_inv;
    +
    64  fmpz_poly_t pub;
    65 };
    66 
    67 
    @@ -163,22 +159,22 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    144 
    145 
    146 #endif /* PUBLIC_NTRU_KEYPAIR_H_ */
    -
    ntru_delete_keypair
    void ntru_delete_keypair(keypair *pair)
    Definition: ntru_keypair.c:197
    -
    import_priv_key
    void import_priv_key(char const *const filename, fmpz_poly_t priv, fmpz_poly_t priv_inv, ntru_params *params)
    Definition: ntru_keypair.c:157
    +
    ntru_delete_keypair
    void ntru_delete_keypair(keypair *pair)
    +
    import_priv_key
    void import_priv_key(char const *const filename, fmpz_poly_t priv, fmpz_poly_t priv_inv, ntru_params *params)
    ntru.h
    public API, basic data types
    -
    export_priv_key
    void export_priv_key(char const *const filename, fmpz_poly_t priv, ntru_params *params)
    Definition: ntru_keypair.c:111
    -
    ntru_create_keypair
    bool ntru_create_keypair(fmpz_poly_t f, fmpz_poly_t g, keypair *pair, ntru_params *params)
    Definition: ntru_keypair.c:47
    -
    ntru_params
    Definition: ntru_params.h:43
    -
    keypair::priv_inv
    fmpz_poly_t priv_inv
    Definition: ntru_keypair.h:56
    -
    import_public_key
    void import_public_key(char const *const filename, fmpz_poly_t pub, ntru_params *params)
    Definition: ntru_keypair.c:132
    -
    keypair::pub
    fmpz_poly_t pub
    Definition: ntru_keypair.h:61
    -
    keypair::priv
    fmpz_poly_t priv
    Definition: ntru_keypair.h:51
    - -
    export_public_key
    void export_public_key(char const *const filename, fmpz_poly_t pub, ntru_params *params)
    Definition: ntru_keypair.c:96
    +
    export_priv_key
    void export_priv_key(char const *const filename, fmpz_poly_t priv, ntru_params *params)
    +
    ntru_create_keypair
    bool ntru_create_keypair(fmpz_poly_t f, fmpz_poly_t g, keypair *pair, ntru_params *params)
    +
    ntru_params
    Definition: ntru.h:47
    +
    keypair::priv_inv
    fmpz_poly_t priv_inv
    Definition: keypair.h:59
    +
    import_public_key
    void import_public_key(char const *const filename, fmpz_poly_t pub, ntru_params *params)
    +
    keypair::pub
    fmpz_poly_t pub
    Definition: keypair.h:64
    +
    keypair::priv
    fmpz_poly_t priv
    Definition: keypair.h:54
    + +
    export_public_key
    void export_public_key(char const *const filename, fmpz_poly_t pub, ntru_params *params)
    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
    diff --git a/ntru_8h.html b/ntru_8h.html index 5636ffb..7983ec7 100644 --- a/ntru_8h.html +++ b/ntru_8h.html @@ -4,7 +4,7 @@ -post quantum cryptography: /home/travis/build/hasufell/pqc/include/ntru.h File Reference +post quantum cryptography: ntru.h File Reference @@ -69,7 +69,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> - All Data Structures Files Functions Variables Typedefs Macros Pages + All Data Structures Files Functions Variables Typedefs Pages
    @@ -78,10 +78,6 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    -
    @@ -101,8 +97,8 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    Include dependency graph for ntru.h:
    -
    - +
    +
    @@ -201,8 +197,6 @@ Functions -

    Definition at line 123 of file ntru_poly.c.

    -
    @@ -237,8 +231,6 @@ Functions -

    Definition at line 149 of file ntru_poly.c.

    - @@ -262,8 +254,6 @@ Functions -

    Definition at line 131 of file ntru_poly.c.

    - @@ -287,8 +277,6 @@ Functions -

    Definition at line 574 of file ntru_poly.c.

    - @@ -312,8 +300,6 @@ Functions -

    Definition at line 583 of file ntru_poly.c.

    - @@ -356,8 +342,6 @@ Functions
    Returns
    newly allocated polynomial pointer, must be freed with fmpz_poly_clear()
    -

    Definition at line 110 of file ntru_poly.c.

    - @@ -381,8 +365,6 @@ Functions -

    Definition at line 37 of file ntru_string.c.

    - @@ -405,17 +387,7 @@ Functions -
    Returns
    a newly allocated string which must be freed by the caller or NULL on failure
    -

    Reads a file and returns a newly allocated string.

    -
    Parameters
    - - -
    filenamefile to open
    -
    -
    -
    Returns
    a newly allocated string which must be freed by the caller or NULL on failure (e.g. if the file could not be opened/closed)
    - -

    Definition at line 50 of file ntru_file.c.

    +
    Returns
    a newly allocated string which must be freed by the caller or NULL on failure
    @@ -440,8 +412,6 @@ Functions -

    Definition at line 47 of file ntru_string.c.

    - @@ -468,14 +438,6 @@ Functions

    Write a string to a file. The file will be pruned or created if it does not exist.

    -
    Parameters
    - - - -
    wstringthe string to write to the file
    filenamethe name of the file to write to
    -
    -
    -

    Write a string to a file. The file will be pruned or created if it does not exist.

    Parameters
    @@ -483,16 +445,13 @@ Functions
    wstringthe string to write to the file
    -
    Returns
    true for success or false for failure if fopen or fclose failed
    - -

    Definition at line 107 of file ntru_file.c.

    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
    diff --git a/ntru_8h__incl.map b/ntru_8h__incl.map index 6ce85f8..508e53e 100644 --- a/ntru_8h__incl.map +++ b/ntru_8h__incl.map @@ -1,2 +1,2 @@ - + diff --git a/ntru_8h__incl.md5 b/ntru_8h__incl.md5 index 9896a1d..4fbaf23 100644 --- a/ntru_8h__incl.md5 +++ b/ntru_8h__incl.md5 @@ -1 +1 @@ -eacd6dc5eb22433d8cb012ec28b3ce8a \ No newline at end of file +4f58550f1bf3fc0e7a21db75f42bafb9 \ No newline at end of file diff --git a/ntru_8h__incl.png b/ntru_8h__incl.png index b187fb0..67634e1 100644 Binary files a/ntru_8h__incl.png and b/ntru_8h__incl.png differ diff --git a/ntru_8h_source.html b/ntru_8h_source.html index 217c038..de1d531 100644 --- a/ntru_8h_source.html +++ b/ntru_8h_source.html @@ -4,7 +4,7 @@ -post quantum cryptography: /home/travis/build/hasufell/pqc/include/ntru.h Source File +post quantum cryptography: ntru.h Source File @@ -64,12 +64,13 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
  • Globals
    • + + All Data Structures Files Functions Variables Typedefs Pages
    @@ -78,11 +79,6 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    - -
    ntru.h
    @@ -122,15 +118,15 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    40 typedef struct string string;
    41 
    42 
    -
    47 struct ntru_params {
    -
    52  uint32_t N;
    -
    56  uint32_t q;
    -
    60  uint32_t p;
    +
    47 struct ntru_params {
    +
    52  uint32_t N;
    +
    56  uint32_t q;
    +
    60  uint32_t p;
    61 };
    62 
    -
    66 struct string {
    -
    74  char *ptr;
    -
    78  size_t len;
    +
    66 struct string {
    +
    74  char *ptr;
    +
    78  size_t len;
    79 };
    80 
    81 
    @@ -168,27 +164,27 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    186 
    187 
    188 #endif /* NTRU_NTRU_H_ */
    -
    string_delete
    void string_delete(string *del_string)
    Definition: ntru_string.c:47
    -
    poly_new
    void poly_new(fmpz_poly_t new_poly, int const *const c, const size_t len)
    Definition: ntru_poly.c:110
    -
    string::len
    size_t len
    Definition: ntru_string.h:53
    -
    poly_delete_array
    void poly_delete_array(fmpz_poly_t **poly_array)
    Definition: ntru_poly.c:131
    -
    ntru_params::N
    uint32_t N
    Definition: ntru_params.h:48
    -
    poly_draw
    void poly_draw(const fmpz_poly_t poly)
    Definition: ntru_poly.c:574
    -
    poly_delete_all
    void poly_delete_all(fmpz_poly_t poly,...)
    Definition: ntru_poly.c:149
    -
    ntru_params::p
    uint32_t p
    Definition: ntru_params.h:56
    -
    ntru_params
    Definition: ntru_params.h:43
    -
    write_file
    void write_file(string const *wstring, char const *const filename)
    Definition: ntru_file.c:107
    -
    prints
    void prints(const string *print_string)
    Definition: ntru_string.c:37
    - -
    ntru_params::q
    uint32_t q
    Definition: ntru_params.h:52
    -
    read_file
    string * read_file(char const *const filename)
    Definition: ntru_file.c:50
    -
    poly_delete
    void poly_delete(fmpz_poly_t poly)
    Definition: ntru_poly.c:123
    -
    string::ptr
    char * ptr
    Definition: ntru_string.h:49
    -
    poly_draw_pretty
    void poly_draw_pretty(const fmpz_poly_t poly)
    Definition: ntru_poly.c:583
    +
    string_delete
    void string_delete(string *del_string)
    +
    poly_new
    void poly_new(fmpz_poly_t new_poly, int const *const c, const size_t len)
    +
    string::len
    size_t len
    Definition: ntru.h:78
    +
    string::ptr
    char * ptr
    Definition: ntru.h:74
    +
    poly_delete_array
    void poly_delete_array(fmpz_poly_t **poly_array)
    +
    ntru_params::N
    uint32_t N
    Definition: ntru.h:52
    +
    poly_draw
    void poly_draw(const fmpz_poly_t poly)
    +
    poly_delete_all
    void poly_delete_all(fmpz_poly_t poly,...)
    +
    ntru_params::p
    uint32_t p
    Definition: ntru.h:60
    +
    ntru_params
    Definition: ntru.h:47
    +
    write_file
    void write_file(string const *wstring, char const *const filename)
    +
    prints
    void prints(const string *print_string)
    +
    string
    Definition: ntru.h:66
    +
    ntru_params::q
    uint32_t q
    Definition: ntru.h:56
    +
    read_file
    string * read_file(char const *const filename)
    +
    poly_delete
    void poly_delete(fmpz_poly_t poly)
    +
    poly_draw_pretty
    void poly_draw_pretty(const fmpz_poly_t poly)
    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
    diff --git a/ntru__ascii__poly_8c.html b/ntru__ascii__poly_8c.html deleted file mode 100644 index f8973c7..0000000 --- a/ntru__ascii__poly_8c.html +++ /dev/null @@ -1,296 +0,0 @@ - - - - - - -post quantum cryptography: /home/travis/build/hasufell/pqc/src/ntru_ascii_poly.c File Reference - - - - - - - - - -
    -
    - - - - - - -
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    post quantum cryptography -
    -
    Highly optimized implementation of the NTRUEncrypt algorithm
    -
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    - - -
    -
    -
    -Functions
    -
    -
    ntru_ascii_poly.c File Reference
    -
    -
    - -

    ascii to polynomials -More...

    -
    #include "ntru_ascii_poly.h"
    -#include "ntru_common.h"
    -#include "ntru_mem.h"
    -#include "ntru_params.h"
    -#include "ntru_poly.h"
    -#include "ntru_string.h"
    -#include <glib.h>
    -#include <stdint.h>
    -#include <stdlib.h>
    -#include <string.h>
    -#include <fmpz_poly.h>
    -#include <fmpz.h>
    -
    -Include dependency graph for ntru_ascii_poly.c:
    -
    -
    - - -
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    Go to the source code of this file.

    - - - - - - - - - - -

    -Functions

    static char * get_int_to_bin_str (uint8_t value)
     
    fmpz_poly_t * ascii_bin_to_bin_poly (const char *to_poly, const ntru_params *params)
     
    fmpz_poly_t ** ascii_to_bin_poly_arr (const string *to_poly, const ntru_params *params)
     
    fmpz_poly_t ** base64_to_poly_arr (const string *to_poly, const ntru_params *params)
     
    -

    Detailed Description

    -

    ascii to polynomials

    -

    This file allows to convert ascii strings, including base64 encoded ones, to polynomials.

    - -

    Definition in file ntru_ascii_poly.c.

    -

    Function Documentation

    - -
    -
    - - - - - - - - - - - - - - - - - - -
    fmpz_poly_t* ascii_bin_to_bin_poly (const char * to_poly,
    const ntru_params * params 
    )
    -
    -

    Convert a "binary" ascii string to a binary polyomial. The ascii string will be converted to a binary representation and the following mapping will apply between binary -> poly:

    -

    1 => 1

    -

    0 => -1

    -

    If the polynomial is of degree less than N -1, then it will be filled with trailing 2's for later use in bin_poly_to_ascii().

    -
    Parameters
    - - - -
    to_polythe string to get into binary polynomial format
    paramsthe NTRUEncrypt context
    -
    -
    -
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    newly allocated array of binary polynomials
    - -

    Definition at line 81 of file ntru_ascii_poly.c.

    - -
    -
    - -
    -
    - - - - - - - - - - - - - - - - - - -
    fmpz_poly_t** ascii_to_bin_poly_arr (const string * to_poly,
    const ntru_params * params 
    )
    -
    -

    Convert an ascii string to an array of binary polyomials. The ascii string will be converted to a binary representation and the following mapping will apply between binary -> poly:

    -

    1 => 1

    -

    0 => -1

    -

    If the last polynomial is of degree less than N -1, then it will be filled with trailing 2's for later use in bin_poly_arr_to_ascii().

    -
    Parameters
    - - - -
    to_polythe string to get into binary polynomial format
    paramsthe NTRUEncrypt context
    -
    -
    -
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    newly allocated array of binary polynomials
    - -

    Definition at line 101 of file ntru_ascii_poly.c.

    - -
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    - - - - - - - - - - - - - - - - - - -
    fmpz_poly_t** base64_to_poly_arr (const string * to_poly,
    const ntru_params * params 
    )
    -
    -

    Convert an base64 encoded string to an array of polyomials with coefficients which are expected to be in the range [0, q-1]. The chars will be converted (after decoding) to their integer representation and directly put into the coefficients.

    -

    If the last polynomial is of degree less than N -1, then it will be filled with trailing q's for later user in poly_arr_to_base64().

    -
    Parameters
    - - - -
    to_polythe string to get into polynomial format, which is of type string, so we can iterate safely over it (the string might have null-bytes in the middle of it)
    paramsthe NTRUEncrypt context
    -
    -
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    newly allocated array of polynomials
    - -

    Definition at line 146 of file ntru_ascii_poly.c.

    - -
    -
    - -
    -
    - - - - - -
    - - - - - - - - -
    static char * get_int_to_bin_str (uint8_t value)
    -     		-static
    -
    -

    Convert an integer to it's binary representation as a string and return it.

    -

    As in: 90 => "10110101"

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    Definition at line 62 of file ntru_ascii_poly.c.

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    1 /*
    -
    2  * Copyright (C) 2014 FH Bielefeld
    -
    3  *
    -
    4  * This file is part of a FH Bielefeld project.
    -
    5  *
    -
    6  * This library is free software; you can redistribute it and/or
    -
    7  * modify it under the terms of the GNU Lesser General Public
    -
    8  * License as published by the Free Software Foundation; either
    -
    9  * version 2.1 of the License, or (at your option) any later version.
    -
    10  *
    -
    11  * This library is distributed in the hope that it will be useful,
    -
    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    -
    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    -
    14  * Lesser General Public License for more details.
    -
    15  *
    -
    16  * You should have received a copy of the GNU Lesser General Public
    -
    17  * License along with this library; if not, write to the Free Software
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    40 #include <string.h>
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    41 
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    42 #include <fmpz_poly.h>
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    43 #include <fmpz.h>
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    56 get_int_to_bin_str(uint8_t value);
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    66  char *bin_string = ntru_malloc(sizeof(*bin_string) *
    -
    67  (bin_string_size)); /* account for trailing null-byte */
    -
    68 
    -
    69  /* terminate properly */
    -
    70  bin_string[bin_string_size - 1] = '\0';
    -
    71 
    -
    72  for (i = ASCII_BITS - 1; i >= 0; --i, value >>= 1)
    -
    73  bin_string[i] = (value & 1) + '0';
    -
    74 
    -
    75  return bin_string;
    -
    76 }
    -
    77 
    -
    78 /*------------------------------------------------------------------------*/
    -
    79 
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    80 fmpz_poly_t *
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    81 ascii_bin_to_bin_poly(const char *to_poly, const ntru_params *params)
    -
    82 {
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    83  uint32_t i = 0;
    -
    84  fmpz_poly_t *new_poly = ntru_malloc(sizeof(*new_poly));
    -
    85 
    -
    86  fmpz_poly_init(*new_poly);
    -
    87 
    -
    88  while (to_poly[i] && i < params->N) {
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    -
    92  i++;
    -
    93  }
    -
    94 
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    -
    96 }
    -
    97 
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    98 /*------------------------------------------------------------------------*/
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    99 
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    102 {
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    103  char *cur = to_poly->ptr;
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    104  char *out = ntru_malloc(CHAR_SIZE * (to_poly->len * ASCII_BITS + 1));
    -
    105  uint32_t polyc = 0;
    -
    106  size_t out_len = 0;
    -
    107  fmpz_poly_t **poly_array;
    -
    108 
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    109  for (uint32_t i = 0; i < to_poly->len; i++) {
    -
    110  char *tmp_string = get_int_to_bin_str((int)(*cur));
    -
    111  memcpy(out + out_len, tmp_string, ASCII_BITS);
    -
    112  out_len += ASCII_BITS;
    -
    113  cur++;
    -
    114  free(tmp_string);
    -
    115  }
    -
    116  out[out_len] = '\0';
    -
    117 
    -
    118  poly_array = ntru_malloc(sizeof(**poly_array) *
    -
    119  (strlen(out) / params->N + 1));
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    120 
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    121  for (uint32_t i = 0; i < out_len; i += params->N) {
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    130 
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    131  poly_array[polyc] = ascii_bin_to_bin_poly(chunk, params);
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    132 
    -
    133  polyc++;
    -
    134  }
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    135 
    -
    136  free(out);
    -
    137 
    -
    138  poly_array[polyc] = NULL;
    -
    139 
    -
    140  return poly_array;
    -
    141 }
    -
    142 
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    143 /*------------------------------------------------------------------------*/
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    144 
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    145 fmpz_poly_t **
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    147 {
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    148  uint32_t i = 0,
    -
    149  polyc = 0;
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    150  gsize out_len;
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    151  guchar *base64_decoded = NULL,
    -
    152  *base_tmp = NULL;
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    153  string *new_string = ntru_malloc(sizeof(*new_string));
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    154  fmpz_poly_t **poly_array;
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    155  char *tmp = ntru_malloc(sizeof(char) * (to_poly->len + 1));
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    156 
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    157  /* g_base64_decode() needs it null-terminated */
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    158  memcpy(tmp, to_poly->ptr, to_poly->len);
    -
    159  tmp[to_poly->len] = '\0';
    -
    160 
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    162 
    -
    163  /* g_base64_decode() needs it null-terminated */
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    164  REALLOC(tmp, sizeof(char) * (out_len + 1));
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    167 
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    170  new_string->ptr = (char *)base64_decoded;
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    171  new_string->len = (unsigned long)(out_len);
    -
    172 
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    173  poly_array = ntru_malloc(sizeof(**poly_array) *
    -
    174  (new_string->len / params->N));
    -
    175 
    -
    176  while (i < new_string->len) {
    -
    177  uint32_t j = 0;
    -
    178  fmpz_poly_t *new_poly = ntru_malloc(sizeof(*new_poly));
    -
    179 
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    180  fmpz_poly_init(*new_poly);
    -
    181 
    -
    182  while (j < params->N) {
    -
    183  fmpz_poly_set_coeff_si(*new_poly,
    -
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    185  (uint8_t)(base64_decoded[i]));
    -
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    -
    187  i++;
    -
    188  }
    -
    189 
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    191  * coefficient) */
    -
    192  for (uint32_t k = j; k < params->N; k++) {
    -
    193  fmpz_poly_set_coeff_si(*new_poly,
    -
    194  k,
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    195  params->q);
    -
    196  }
    -
    197 
    -
    198  poly_array[polyc] = new_poly;
    -
    199  polyc++;
    -
    200  }
    -
    201 
    -
    202  poly_array[polyc] = NULL;
    -
    203 
    -
    204  string_delete(new_string);
    -
    205  free(base_tmp);
    -
    206  free(tmp);
    -
    207 
    -
    208  return poly_array;
    -
    209 }
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    Definition: ntru_ascii_poly.c:101
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    Definition: ntru_params.h:48
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    fmpz_poly_t ** base64_to_poly_arr(const string *to_poly, const ntru_params *params)
    Definition: ntru_ascii_poly.c:146
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    Definition: ntru_params.h:43
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    NTRU parameters.
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    #define REALLOC(ptr, size)
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    common macros/functions
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    static char * get_int_to_bin_str(uint8_t value)
    Definition: ntru_ascii_poly.c:62
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    void * ntru_malloc(size_t size)
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    fmpz_poly_t * ascii_bin_to_bin_poly(const char *to_poly, const ntru_params *params)
    Definition: ntru_ascii_poly.c:81
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    fmpz_poly_t * ascii_bin_to_bin_poly (const char *to_poly, const ntru_params *params)
     
    fmpz_poly_t ** ascii_to_bin_poly_arr (const string *to_poly, const ntru_params *params)
     
    fmpz_poly_t ** base64_to_poly_arr (const string *to_poly, const ntru_params *params)
     
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    Detailed Description

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    header for ntru_ascii_poly.c

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    Header for the internal API of ntru_ascii_poly.c.

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    Definition in file ntru_ascii_poly.h.

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    fmpz_poly_t* ascii_bin_to_bin_poly (const char * to_poly,
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    Convert a "binary" ascii string to a binary polyomial. The ascii string will be converted to a binary representation and the following mapping will apply between binary -> poly:

    -

    1 => 1

    -

    0 => -1

    -

    If the polynomial is of degree less than N -1, then it will be filled with trailing 2's for later use in bin_poly_to_ascii().

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    paramsthe NTRUEncrypt context
    -
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    Definition at line 81 of file ntru_ascii_poly.c.

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    -

    Convert an ascii string to an array of binary polyomials. The ascii string will be converted to a binary representation and the following mapping will apply between binary -> poly:

    -

    1 => 1

    -

    0 => -1

    -

    If the last polynomial is of degree less than N -1, then it will be filled with trailing 2's for later use in bin_poly_arr_to_ascii().

    -
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    - - - -
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    paramsthe NTRUEncrypt context
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    Definition at line 101 of file ntru_ascii_poly.c.

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    )
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    -

    Convert an base64 encoded string to an array of polyomials with coefficients which are expected to be in the range [0, q-1]. The chars will be converted (after decoding) to their integer representation and directly put into the coefficients.

    -

    If the last polynomial is of degree less than N -1, then it will be filled with trailing q's for later user in poly_arr_to_base64().

    -
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    paramsthe NTRUEncrypt context
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    Definition at line 146 of file ntru_ascii_poly.c.

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    1 /*
    -
    2  * Copyright (C) 2014 FH Bielefeld
    -
    3  *
    -
    4  * This file is part of a FH Bielefeld project.
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    5  *
    -
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    8  * License as published by the Free Software Foundation; either
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    9  * version 2.1 of the License, or (at your option) any later version.
    -
    10  *
    -
    11  * This library is distributed in the hope that it will be useful,
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    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    -
    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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    14  * Lesser General Public License for more details.
    -
    15  *
    -
    16  * You should have received a copy of the GNU Lesser General Public
    -
    17  * License along with this library; if not, write to the Free Software
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    18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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    20  */
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    28 #ifndef NTRU_ASCII_POLY_H_
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    34 #include "ntru_params.h"
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    36 #include <fmpz_poly.h>
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    37 #include <fmpz.h>
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    38 
    -
    39 
    -
    56 fmpz_poly_t *
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    57 ascii_bin_to_bin_poly(const char *to_poly, const ntru_params *params);
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    58 
    -
    75 fmpz_poly_t **
    -
    76 ascii_to_bin_poly_arr(const string *to_poly, const ntru_params *params);
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    77 
    -
    93 fmpz_poly_t **
    -
    94 base64_to_poly_arr(const string *to_poly, const ntru_params *params);
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    95 
    -
    96 
    -
    97 #endif /* NTRU_ASCII_POLY_H_ */
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    fmpz_poly_t ** ascii_to_bin_poly_arr(const string *to_poly, const ntru_params *params)
    Definition: ntru_ascii_poly.c:101
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    ntru_params
    Definition: ntru_params.h:43
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    ntru_params.h
    NTRU parameters.
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    common macros/functions
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    base64_to_poly_arr
    fmpz_poly_t ** base64_to_poly_arr(const string *to_poly, const ntru_params *params)
    Definition: ntru_ascii_poly.c:146
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    ntru_string.h
    header for ntru_string.c
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    ascii_bin_to_bin_poly
    fmpz_poly_t * ascii_bin_to_bin_poly(const char *to_poly, const ntru_params *params)
    Definition: ntru_ascii_poly.c:81
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    -Macros

    #define CHAR_SIZE   sizeof(char)
     
    #define ASCII_BITS   8
     
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    Detailed Description

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    common macros/functions

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    This file holds common macros and functions shared throughout the whole codebase without any particular purpose.

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    1 /*
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    2  * Copyright (C) 2014 FH Bielefeld
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    3  *
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    4  * This file is part of a FH Bielefeld project.
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    5  *
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    8  * License as published by the Free Software Foundation; either
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    9  * version 2.1 of the License, or (at your option) any later version.
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    10  *
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    11  * This library is distributed in the hope that it will be useful,
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    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    -
    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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    14  * Lesser General Public License for more details.
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    15  *
    -
    16  * You should have received a copy of the GNU Lesser General Public
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    17  * License along with this library; if not, write to the Free Software
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    18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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    19  * MA 02110-1301 USA
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    20  */
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    30 #ifndef NTRU_COMMON_H
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    31 #define NTRU_COMMON_H
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    -#include "ntru_params.h"
    -#include "ntru_poly.h"
    -#include "ntru_poly_ascii.h"
    -#include "ntru_string.h"
    -#include <stdbool.h>
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    void ntru_decrypt_poly (const fmpz_poly_t encr_msg, const fmpz_poly_t priv_key, const fmpz_poly_t priv_key_inv, fmpz_poly_t out_bin, const ntru_params *params)
     
    string * ntru_decrypt_string (const string *encr_msg, const fmpz_poly_t priv_key, const fmpz_poly_t priv_key_inv, const ntru_params *params)
     
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    const fmpz_poly_t priv_key,
    const fmpz_poly_t priv_key_inv,
    fmpz_poly_t out_tern,
    const ntru_params * params 
    )
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    encr_msgencrypted polynom with maximum length of N from the given context
    priv_keythe polynom containing the private key to decrypt the message
    priv_key_invthe inverse polynome to the private key
    out_ternthe resulting ternary polynom [out]
    paramsthe ntru_params
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    const fmpz_poly_t priv_key,
    const fmpz_poly_t priv_key_inv,
    const ntru_params * params 
    )
    -
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    priv_keythe polynom containing the private key to decrypt the message
    priv_key_invthe inverse polynome to the private key
    paramsthe ntru_params
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    Definition at line 92 of file ntru_decrypt.c.

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    1 /*
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    2  * Copyright (C) 2014 FH Bielefeld
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    3  *
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    4  * This file is part of a FH Bielefeld project.
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    5  *
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    9  * version 2.1 of the License, or (at your option) any later version.
    -
    10  *
    -
    11  * This library is distributed in the hope that it will be useful,
    -
    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    -
    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    -
    14  * Lesser General Public License for more details.
    -
    15  *
    -
    16  * You should have received a copy of the GNU Lesser General Public
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    17  * License along with this library; if not, write to the Free Software
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    18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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    19  * MA 02110-1301 USA
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    20  */
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    29 #include "ntru_ascii_poly.h"
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    30 #include "ntru_decrypt.h"
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    31 #include "ntru_params.h"
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    32 #include "ntru_poly.h"
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    33 #include "ntru_poly_ascii.h"
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    34 #include "ntru_string.h"
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    35 
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    36 #include <stdbool.h>
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    37 #include <string.h>
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    39 #include <fmpz_poly.h>
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    40 #include <fmpz.h>
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    41 
    -
    42 
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    43 /*------------------------------------------------------------------------*/
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    44 
    -
    45 void
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    46 ntru_decrypt_poly(
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    47  const fmpz_poly_t encr_msg,
    -
    48  const fmpz_poly_t priv_key,
    -
    49  const fmpz_poly_t priv_key_inv,
    -
    50  fmpz_poly_t out_bin,
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    51  const ntru_params *params)
    -
    52 {
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    53  fmpz_poly_t a,
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    54  priv_key_tmp,
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    55  priv_key_inv_tmp,
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    56  encr_msg_tmp;
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    57 
    -
    58  if (!encr_msg || !priv_key || !priv_key_inv || !out_bin || !params)
    -
    59  NTRU_ABORT_DEBUG("Unexpected NULL parameters");
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    60 
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    61  fmpz_poly_init(a);
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    62  fmpz_poly_zero(a);
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    63 
    -
    64  /*
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    65  * make sure all are shifted to
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    66  * [-q/2, q/2]
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    67  */
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    68  fmpz_poly_init(priv_key_tmp);
    -
    69  fmpz_poly_init(priv_key_inv_tmp);
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    70  fmpz_poly_init(encr_msg_tmp);
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    71  fmpz_poly_set(priv_key_tmp, priv_key);
    -
    72  fmpz_poly_set(priv_key_inv_tmp, priv_key_inv);
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    73  fmpz_poly_set(encr_msg_tmp, encr_msg);
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    74  fmpz_poly_mod(priv_key_tmp, params->q);
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    75  fmpz_poly_mod(priv_key_inv_tmp, params->q);
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    76  fmpz_poly_mod(encr_msg_tmp, params->q);
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    77 
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    78  poly_starmultiply(priv_key_tmp, encr_msg_tmp, a, params, params->q);
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    79  fmpz_poly_mod(a, params->q);
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    80  poly_starmultiply(a, priv_key_inv_tmp, out_bin, params, params->p);
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    81  fmpz_poly_mod(out_bin, params->p);
    -
    82 
    -
    83  fmpz_poly_clear(a);
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    84  fmpz_poly_clear(priv_key_tmp);
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    85  fmpz_poly_clear(priv_key_inv_tmp);
    -
    86  fmpz_poly_clear(encr_msg_tmp);
    -
    87 }
    -
    88 
    -
    89 /*------------------------------------------------------------------------*/
    -
    90 
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    91 string *
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    92 ntru_decrypt_string(
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    93  const string *encr_msg,
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    94  const fmpz_poly_t priv_key,
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    95  const fmpz_poly_t priv_key_inv,
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    96  const ntru_params *params)
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    97 {
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    98  uint32_t i = 0;
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    99  string *decr_msg;
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    100  fmpz_poly_t **poly_array;
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    101 
    -
    102  if (!encr_msg || !encr_msg->len)
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    103  NTRU_ABORT_DEBUG("Unexpected NULL parameters");
    -
    104 
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    105  poly_array = base64_to_poly_arr(encr_msg, params);
    -
    106 
    -
    107  while (*poly_array[i]) {
    -
    108  ntru_decrypt_poly(*poly_array[i],
    -
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    111  *poly_array[i],
    -
    112  params);
    -
    113  i++;
    -
    114  }
    -
    115 
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    116  decr_msg = bin_poly_arr_to_ascii((const fmpz_poly_t **)poly_array,
    -
    117  i, params);
    -
    118 
    -
    119  poly_delete_array(poly_array);
    -
    120 
    -
    121  return decr_msg;
    -
    122 }
    -
    123 
    -
    124 /*------------------------------------------------------------------------*/
    -
    string::len
    size_t len
    Definition: ntru_string.h:53
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    void fmpz_poly_mod(fmpz_poly_t a, const uint32_t mod)
    Definition: ntru_poly.c:182
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    Definition: ntru_err.h:39
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    Definition: ntru_params.h:56
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    fmpz_poly_t ** base64_to_poly_arr(const string *to_poly, const ntru_params *params)
    Definition: ntru_ascii_poly.c:146
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    ntru_decrypt.h
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    Definition: ntru_params.h:43
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    void poly_starmultiply(const fmpz_poly_t a, const fmpz_poly_t b, fmpz_poly_t c, const ntru_params *params, uint32_t modulus)
    Definition: ntru_poly.c:239
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    void poly_delete_array(fmpz_poly_t **poly_array)
    Definition: ntru_poly.c:131
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    string * bin_poly_arr_to_ascii(const fmpz_poly_t **bin_poly_arr, const uint32_t poly_c, const ntru_params *params)
    Definition: ntru_poly_ascii.c:143
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    Definition: ntru_params.h:52
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    void ntru_decrypt_poly(const fmpz_poly_t encr_msg, const fmpz_poly_t priv_key, const fmpz_poly_t priv_key_inv, fmpz_poly_t out_bin, const ntru_params *params)
    Definition: ntru_decrypt.c:46
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    string * ntru_decrypt_string(const string *encr_msg, const fmpz_poly_t priv_key, const fmpz_poly_t priv_key_inv, const ntru_params *params)
    Definition: ntru_decrypt.c:92
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    void ntru_decrypt_poly (const fmpz_poly_t encr_msg, const fmpz_poly_t priv_key, const fmpz_poly_t priv_key_inv, fmpz_poly_t out_tern, const ntru_params *params)
     
    string * ntru_decrypt_string (const string *encr_msg, const fmpz_poly_t priv_key, const fmpz_poly_t priv_key_inv, const ntru_params *params)
     
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    Detailed Description

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    header for ntru_decrypt.c

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    Header for the external API of ntru_decrypt.c.

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    const fmpz_poly_t priv_key_inv,
    fmpz_poly_t out_tern,
    const ntru_params * params 
    )
    -
    -

    Decryption of the given Polynom with the private key, its inverse and the fitting ntru_params

    -
    Parameters
    - - - - - - -
    encr_msgencrypted polynom with maximum length of N from the given context
    priv_keythe polynom containing the private key to decrypt the message
    priv_key_invthe inverse polynome to the private key
    out_ternthe resulting ternary polynom [out]
    paramsthe ntru_params
    -
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    const fmpz_poly_t priv_key,
    const fmpz_poly_t priv_key_inv,
    const ntru_params * params 
    )
    -
    -

    Decryption of a given encrypted string.

    -
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    - - - - - -
    encr_msgthe encrypted message in the form of a string
    priv_keythe polynom containing the private key to decrypt the message
    priv_key_invthe inverse polynome to the private key
    paramsthe ntru_params
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    Definition at line 92 of file ntru_decrypt.c.

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    1 /*
    -
    2  * Copyright (C) 2014 FH Bielefeld
    -
    3  *
    -
    4  * This file is part of a FH Bielefeld project.
    -
    5  *
    -
    6  * This library is free software; you can redistribute it and/or
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    7  * modify it under the terms of the GNU Lesser General Public
    -
    8  * License as published by the Free Software Foundation; either
    -
    9  * version 2.1 of the License, or (at your option) any later version.
    -
    10  *
    -
    11  * This library is distributed in the hope that it will be useful,
    -
    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    -
    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    -
    14  * Lesser General Public License for more details.
    -
    15  *
    -
    16  * You should have received a copy of the GNU Lesser General Public
    -
    17  * License along with this library; if not, write to the Free Software
    -
    18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
    -
    19  * MA 02110-1301 USA
    -
    20  */
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    28 #ifndef NTRU_DECRYPT_H
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    29 #define NTRU_DECRYPT_H
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    30 
    -
    31 #include "ntru_params.h"
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    32 #include "ntru_poly.h"
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    33 #include "ntru_string.h"
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    34 
    -
    35 #include <fmpz_poly.h>
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    36 #include <fmpz.h>
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    -
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    -
    51 void
    -
    52 ntru_decrypt_poly(
    -
    53  const fmpz_poly_t encr_msg,
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    54  const fmpz_poly_t priv_key,
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    55  const fmpz_poly_t priv_key_inv,
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    56  fmpz_poly_t out_tern,
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    57  const ntru_params *params);
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    58 
    -
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    70 ntru_decrypt_string(
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    71  const string *encr_msg,
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    72  const fmpz_poly_t priv_key,
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    74  const ntru_params *params);
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    75 
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    76 
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    77 #endif /* NTRU_DECRYPT */
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    ntru_decrypt_poly
    void ntru_decrypt_poly(const fmpz_poly_t encr_msg, const fmpz_poly_t priv_key, const fmpz_poly_t priv_key_inv, fmpz_poly_t out_tern, const ntru_params *params)
    Definition: ntru_decrypt.c:46
    -
    ntru_params
    Definition: ntru_params.h:43
    -
    ntru_params.h
    NTRU parameters.
    -
    ntru_decrypt_string
    string * ntru_decrypt_string(const string *encr_msg, const fmpz_poly_t priv_key, const fmpz_poly_t priv_key_inv, const ntru_params *params)
    Definition: ntru_decrypt.c:92
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    ntru_string.h
    header for ntru_string.c
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    ntru_poly.h
    header for ntru_poly.c
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    #include "ntru_ascii_poly.h"
    -#include "ntru_encrypt.h"
    -#include "ntru_mem.h"
    -#include "ntru_params.h"
    -#include "ntru_poly.h"
    -#include "ntru_poly_ascii.h"
    -#include "ntru_string.h"
    -#include <string.h>
    -#include <fmpz_poly.h>
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    -Functions

    void ntru_encrypt_poly (const fmpz_poly_t msg_bin, const fmpz_poly_t pub_key, const fmpz_poly_t rnd, fmpz_poly_t out, const ntru_params *params)
     
    string * ntru_encrypt_string (const string *msg, const fmpz_poly_t pub_key, const fmpz_poly_t rnd, const ntru_params *params)
     
    -

    Detailed Description

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    NTRU encryption.

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    This file handles the NTRU encryption algorithm.

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    Definition in file ntru_encrypt.c.

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    void ntru_encrypt_poly (const fmpz_poly_t msg_tern,
    const fmpz_poly_t pub_key,
    const fmpz_poly_t rnd,
    fmpz_poly_t out,
    const ntru_params * params 
    )
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    encrypt the msg, using the math: e = (h ∗ r) + m (mod q)

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    e = the encrypted poly

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    h = the public key

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    r = the random poly

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    q = large mod

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    Parameters
    - - - - - - -
    msg_ternthe message to encrypt, in ternary format
    pub_keythe public key
    rndthe random poly (should have relatively small coefficients, but not restricted to {-1, 0, 1})
    outthe output poly which is in the range {0, q-1} (not ternary!) [out]
    paramsntru_params the ntru context
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    Definition at line 46 of file ntru_encrypt.c.

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    const fmpz_poly_t pub_key,
    const fmpz_poly_t rnd,
    const ntru_params * params 
    )
    -
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    pub_keythe public key
    rndthe random poly (should have relatively small coefficients, but not restricted to {-1, 0, 1})
    paramsntru_params the ntru context
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    Definition at line 74 of file ntru_encrypt.c.

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    1 /*
    -
    2  * Copyright (C) 2014 FH Bielefeld
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    3  *
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    4  * This file is part of a FH Bielefeld project.
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    5  *
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    6  * This library is free software; you can redistribute it and/or
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    7  * modify it under the terms of the GNU Lesser General Public
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    8  * License as published by the Free Software Foundation; either
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    9  * version 2.1 of the License, or (at your option) any later version.
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    10  *
    -
    11  * This library is distributed in the hope that it will be useful,
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    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    -
    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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    14  * Lesser General Public License for more details.
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    15  *
    -
    16  * You should have received a copy of the GNU Lesser General Public
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    17  * License along with this library; if not, write to the Free Software
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    18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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    19  * MA 02110-1301 USA
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    20  */
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    29 #include "ntru_ascii_poly.h"
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    30 #include "ntru_encrypt.h"
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    31 #include "ntru_mem.h"
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    32 #include "ntru_params.h"
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    33 #include "ntru_poly.h"
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    34 #include "ntru_poly_ascii.h"
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    35 #include "ntru_string.h"
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    37 #include <string.h>
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    39 #include <fmpz_poly.h>
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    40 #include <fmpz.h>
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    41 
    -
    42 
    -
    43 /*------------------------------------------------------------------------*/
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    44 
    -
    45 void
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    46 ntru_encrypt_poly(
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    47  const fmpz_poly_t msg_bin,
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    48  const fmpz_poly_t pub_key,
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    49  const fmpz_poly_t rnd,
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    50  fmpz_poly_t out,
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    51  const ntru_params *params)
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    52 {
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    53  fmpz_poly_t tmp_poly_msg;
    -
    54 
    -
    55  if (!msg_bin || !pub_key || !rnd || !out || !params)
    -
    56  NTRU_ABORT_DEBUG("Unexpected NULL parameters");
    -
    57 
    -
    58  /* allow aliasing */
    -
    59  fmpz_poly_init(tmp_poly_msg);
    -
    60  fmpz_poly_set(tmp_poly_msg, msg_bin);
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    61 
    -
    62  fmpz_poly_zero(out);
    -
    63  poly_starmultiply(pub_key, rnd, out, params, params->q);
    -
    64 
    -
    65  fmpz_poly_add(out, out, tmp_poly_msg);
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    66  fmpz_poly_mod_unsigned(out, params->q);
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    67 
    -
    68  fmpz_poly_clear(tmp_poly_msg);
    -
    69 }
    -
    70 
    -
    71 /*------------------------------------------------------------------------*/
    -
    72 
    -
    73 string *
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    74 ntru_encrypt_string(
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    75  const string *msg,
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    76  const fmpz_poly_t pub_key,
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    79 {
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    80  uint32_t i = 0;
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    81  string *enc_msg;
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    82  fmpz_poly_t **poly_array;
    -
    83 
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    84  if (!msg || !msg->len)
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    85  NTRU_ABORT_DEBUG("Unexpected NULL parameters");
    -
    86 
    -
    87  poly_array = ascii_to_bin_poly_arr(msg, params);
    -
    88 
    -
    89  while (*poly_array[i]) {
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    90  ntru_encrypt_poly(*poly_array[i],
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    91  pub_key,
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    92  rnd,
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    93  *poly_array[i],
    -
    94  params);
    -
    95  i++;
    -
    96  }
    -
    97 
    -
    98  enc_msg = poly_arr_to_base64((const fmpz_poly_t **)poly_array,
    -
    99  i, params);
    -
    100 
    -
    101  poly_delete_array(poly_array);
    -
    102 
    -
    103  return enc_msg;
    -
    104 }
    -
    105 
    -
    106 /*------------------------------------------------------------------------*/
    -
    ascii_to_bin_poly_arr
    fmpz_poly_t ** ascii_to_bin_poly_arr(const string *to_poly, const ntru_params *params)
    Definition: ntru_ascii_poly.c:101
    -
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    size_t len
    Definition: ntru_string.h:53
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    ntru_encrypt_poly
    void ntru_encrypt_poly(const fmpz_poly_t msg_bin, const fmpz_poly_t pub_key, const fmpz_poly_t rnd, fmpz_poly_t out, const ntru_params *params)
    Definition: ntru_encrypt.c:46
    -
    poly_arr_to_base64
    string * poly_arr_to_base64(const fmpz_poly_t **poly_array, const uint32_t poly_c, const ntru_params *params)
    Definition: ntru_poly_ascii.c:264
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    fmpz_poly_mod_unsigned
    void fmpz_poly_mod_unsigned(fmpz_poly_t a, const uint32_t mod)
    Definition: ntru_poly.c:166
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    NTRU_ABORT_DEBUG
    #define NTRU_ABORT_DEBUG(...)
    Definition: ntru_err.h:39
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    ntru_params
    Definition: ntru_params.h:43
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    ntru_encrypt.h
    header for encrypt.c
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    header for ntru_mem.c
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    NTRU parameters.
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    ntru_encrypt_string
    string * ntru_encrypt_string(const string *msg, const fmpz_poly_t pub_key, const fmpz_poly_t rnd, const ntru_params *params)
    Definition: ntru_encrypt.c:74
    -
    poly_starmultiply
    void poly_starmultiply(const fmpz_poly_t a, const fmpz_poly_t b, fmpz_poly_t c, const ntru_params *params, uint32_t modulus)
    Definition: ntru_poly.c:239
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    poly_delete_array
    void poly_delete_array(fmpz_poly_t **poly_array)
    Definition: ntru_poly.c:131
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    uint32_t q
    Definition: ntru_params.h:52
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    ntru_string.h
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    void ntru_encrypt_poly (const fmpz_poly_t msg_tern, const fmpz_poly_t pub_key, const fmpz_poly_t rnd, fmpz_poly_t out, const ntru_params *params)
     
    string * ntru_encrypt_string (const string *msg, const fmpz_poly_t pub_key, const fmpz_poly_t rnd, const ntru_params *params)
     
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    Detailed Description

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    header for encrypt.c

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    Header for the internal API of ntru_encrypt.c.

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    void ntru_encrypt_poly (const fmpz_poly_t msg_tern,
    const fmpz_poly_t pub_key,
    const fmpz_poly_t rnd,
    fmpz_poly_t out,
    const ntru_params * params 
    )
    -
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    encrypt the msg, using the math: e = (h ∗ r) + m (mod q)

    -

    e = the encrypted poly

    -

    h = the public key

    -

    r = the random poly

    -

    m = the message poly

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    q = large mod

    -
    Parameters
    - - - - - - -
    msg_ternthe message to encrypt, in ternary format
    pub_keythe public key
    rndthe random poly (should have relatively small coefficients, but not restricted to {-1, 0, 1})
    outthe output poly which is in the range {0, q-1} (not ternary!) [out]
    paramsntru_params the ntru context
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    Definition at line 46 of file ntru_encrypt.c.

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    const fmpz_poly_t pub_key,
    const fmpz_poly_t rnd,
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    )
    -
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    Encrypt a message in the form of a null-terminated char array and return a string.

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    pub_keythe public key
    rndthe random poly (should have relatively small coefficients, but not restricted to {-1, 0, 1})
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    Definition at line 74 of file ntru_encrypt.c.

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    1 /*
    -
    2  * Copyright (C) 2014 FH Bielefeld
    -
    3  *
    -
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    -
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    17  * License along with this library; if not, write to the Free Software
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    28 #ifndef PQC_ENCRYPT_H
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    67  fmpz_poly_t out,
    -
    68  const ntru_params *params);
    -
    69 
    -
    81 string *
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    82 ntru_encrypt_string(
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    83  const string *msg,
    -
    84  const fmpz_poly_t pub_key,
    -
    85  const fmpz_poly_t rnd,
    -
    86  const ntru_params *params);
    -
    87 
    -
    88 
    -
    89 #endif /* PQC_ENCRYPT_H */
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    ntru_encrypt_poly
    void ntru_encrypt_poly(const fmpz_poly_t msg_tern, const fmpz_poly_t pub_key, const fmpz_poly_t rnd, fmpz_poly_t out, const ntru_params *params)
    Definition: ntru_encrypt.c:46
    -
    ntru_encrypt_string
    string * ntru_encrypt_string(const string *msg, const fmpz_poly_t pub_key, const fmpz_poly_t rnd, const ntru_params *params)
    Definition: ntru_encrypt.c:74
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    #define NTRU_ABORT(...)
     
    #define NTRU_ABORT_DEBUG(...)
     
    #define NTRU_WARN(...)
     
    #define NTRU_WARN_DEBUG(...)
     
    -

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    error handling

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    -
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    #define NTRU_ABORT( ...)
    -
    -Value:
    { \
    -
    fprintf(stderr, __VA_ARGS__); \
    -
    abort(); \
    -
    }
    -
    -

    Definition at line 33 of file ntru_err.h.

    - -
    -
    - -
    -
    - - - - - - - - -
    #define NTRU_ABORT_DEBUG( ...)
    -
    -Value:
    { \
    -
    fprintf(stderr, __VA_ARGS__); \
    -
    fprintf(stderr, " [file %s, line %d]:\n", \
    -
    __FILE__, __LINE__); \
    -
    abort(); \
    -
    }
    -
    -

    Definition at line 39 of file ntru_err.h.

    - -
    -
    - -
    -
    - - - - - - - - -
    #define NTRU_WARN( ...)
    -
    -Value:
    { \
    -
    fprintf(stderr, __VA_ARGS__); \
    -
    }
    -
    -

    Definition at line 47 of file ntru_err.h.

    - -
    -
    - -
    -
    - - - - - - - - -
    #define NTRU_WARN_DEBUG( ...)
    -
    -Value:
    { \
    -
    fprintf(stderr, __VA_ARGS__); \
    -
    fprintf(stderr, " [file %s, line %d]:\n", \
    -
    __FILE__, __LINE__); \
    -
    }
    -
    -

    Definition at line 52 of file ntru_err.h.

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    ntru_err.h
    -
    -
    -Go to the documentation of this file.
    1 /*
    -
    2  * Copyright (C) 2014 FH Bielefeld
    -
    3  *
    -
    4  * This file is part of a FH Bielefeld project.
    -
    5  *
    -
    6  * This library is free software; you can redistribute it and/or
    -
    7  * modify it under the terms of the GNU Lesser General Public
    -
    8  * License as published by the Free Software Foundation; either
    -
    9  * version 2.1 of the License, or (at your option) any later version.
    -
    10  *
    -
    11  * This library is distributed in the hope that it will be useful,
    -
    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    -
    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    -
    14  * Lesser General Public License for more details.
    -
    15  *
    -
    16  * You should have received a copy of the GNU Lesser General Public
    -
    17  * License along with this library; if not, write to the Free Software
    -
    18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
    -
    19  * MA 02110-1301 USA
    -
    20  */
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    21 
    -
    29 #ifndef NTRU_ERR_H
    -
    30 #define NTRU_ERR_H
    -
    31 
    -
    32 
    -
    33 #define NTRU_ABORT(...) \
    -
    34 { \
    -
    35  fprintf(stderr, __VA_ARGS__); \
    -
    36  abort(); \
    -
    37 }
    -
    38 
    -
    39 #define NTRU_ABORT_DEBUG(...) \
    -
    40 { \
    -
    41  fprintf(stderr, __VA_ARGS__); \
    -
    42  fprintf(stderr, " [file %s, line %d]:\n", \
    -
    43  __FILE__, __LINE__); \
    -
    44  abort(); \
    -
    45 }
    -
    46 
    -
    47 #define NTRU_WARN(...) \
    -
    48 { \
    -
    49  fprintf(stderr, __VA_ARGS__); \
    -
    50 }
    -
    51 
    -
    52 #define NTRU_WARN_DEBUG(...) \
    -
    53 { \
    -
    54  fprintf(stderr, __VA_ARGS__); \
    -
    55  fprintf(stderr, " [file %s, line %d]:\n", \
    -
    56  __FILE__, __LINE__); \
    -
    57 }
    -
    58 
    -
    59 
    -
    60 #endif /* NTRU_ERR_H */
    -
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    #include "ntru_common.h"
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    -#include <stdint.h>
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    #define STD_FILE_BUF   4096
     
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    bool write_file (string const *wstring, char const *const filename)
     
    -

    Detailed Description

    -

    file operations

    -

    Allows operations on files, such as reading and writing.

    - -

    Definition in file ntru_file.c.

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    Macro Definition Documentation

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    -
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    Definition at line 44 of file ntru_file.c.

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    -
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    Reads a file and returns a newly allocated string.

    -
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    -
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    - -

    Definition at line 50 of file ntru_file.c.

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    -
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    -
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    - - - -
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    filenamethe name of the file to write to
    -
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    - -

    Definition at line 107 of file ntru_file.c.

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    1 /*
    -
    2  * Copyright (C) 2014 FH Bielefeld
    -
    3  *
    -
    4  * This file is part of a FH Bielefeld project.
    -
    5  *
    -
    6  * This library is free software; you can redistribute it and/or
    -
    7  * modify it under the terms of the GNU Lesser General Public
    -
    8  * License as published by the Free Software Foundation; either
    -
    9  * version 2.1 of the License, or (at your option) any later version.
    -
    10  *
    -
    11  * This library is distributed in the hope that it will be useful,
    -
    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    -
    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    -
    14  * Lesser General Public License for more details.
    -
    15  *
    -
    16  * You should have received a copy of the GNU Lesser General Public
    -
    17  * License along with this library; if not, write to the Free Software
    -
    18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
    -
    19  * MA 02110-1301 USA
    -
    20  */
    -
    21 
    -
    29 #include "ntru_common.h"
    -
    30 #include "ntru_err.h"
    -
    31 #include "ntru_mem.h"
    -
    32 #include "ntru_string.h"
    -
    33 
    -
    34 #include <fcntl.h>
    -
    35 #include <stdbool.h>
    -
    36 #include <stdint.h>
    -
    37 #include <stdio.h>
    -
    38 #include <stdlib.h>
    -
    39 #include <string.h>
    -
    40 #include <sys/stat.h>
    -
    41 #include <sys/types.h>
    -
    42 #include <unistd.h>
    -
    43 
    -
    44 #define STD_FILE_BUF 4096
    -
    45 
    -
    46 
    -
    47 /*------------------------------------------------------------------------*/
    -
    48 
    -
    49 string *
    -
    50 read_file(char const * const filename)
    -
    51 {
    -
    52  char buf[STD_FILE_BUF],
    -
    53  *cstring = NULL;
    -
    54  int fd = 0;
    -
    55  size_t str_size = 0;
    -
    56  ssize_t n;
    -
    57  size_t file_length = 0;
    -
    58  string *result_string;
    -
    59 
    -
    60  fd = open(filename, O_RDONLY);
    -
    61  file_length = lseek(fd, 0, SEEK_END) + 1;
    -
    62  lseek(fd, 0, SEEK_SET);
    -
    63 
    -
    64  cstring = malloc(sizeof(char) * file_length);
    -
    65 
    -
    66  if (fd != -1) {
    -
    67  /* read and copy chunks */
    -
    68  while ((n = read(fd, buf, STD_FILE_BUF)) != 0) {
    -
    69 
    -
    70  if (n == -1) {
    -
    71  NTRU_WARN_DEBUG("Failed while reading file descriptor %d",
    -
    72  fd);
    -
    73  goto failure_cleanup;
    -
    74  }
    -
    75 
    -
    76  str_size += n; /* count total bytes read */
    -
    77 
    -
    78  /* append buffer to string */
    -
    79  memcpy(cstring + (str_size - n), buf, (size_t)n);
    -
    80  }
    -
    81  /* add trailing NULL byte */
    -
    82  cstring[str_size] = '\0';
    -
    83 
    -
    84  if (close(fd)) {
    -
    85  NTRU_WARN_DEBUG("Failed to close file descripter %d\n", fd);
    -
    86  goto failure_cleanup;
    -
    87  }
    -
    88 
    -
    89  result_string = ntru_malloc(sizeof(*result_string));
    -
    90  result_string->ptr = cstring;
    -
    91  result_string->len = str_size;
    -
    92 
    -
    93  return result_string;
    -
    94 
    -
    95  } else {
    -
    96  return NULL;
    -
    97  }
    -
    98 
    -
    99 failure_cleanup:
    -
    100  free(cstring);
    -
    101  return NULL;
    -
    102 }
    -
    103 
    -
    104 /*------------------------------------------------------------------------*/
    -
    105 
    -
    106 bool
    -
    107 write_file(string const *wstring, char const * const filename)
    -
    108 {
    -
    109  FILE *fp;
    -
    110 
    -
    111  fp = fopen(filename, "w");
    -
    112 
    -
    113  if (!fp) {
    -
    114  NTRU_WARN_DEBUG("Failed while creating file\n");
    -
    115  return false;
    -
    116  }
    -
    117 
    -
    118  for (uint32_t i = 0; i < wstring->len; i++)
    -
    119  fprintf(fp, "%c", wstring->ptr[i]);
    -
    120 
    -
    121  if (fclose(fp)) {
    -
    122  NTRU_WARN_DEBUG("Failed to close file descripter\n");
    -
    123  return false;
    -
    124  }
    -
    125 
    -
    126  return true;
    -
    127 }
    -
    128 
    -
    129 /*------------------------------------------------------------------------*/
    -
    string::len
    size_t len
    Definition: ntru_string.h:53
    -
    write_file
    bool write_file(string const *wstring, char const *const filename)
    Definition: ntru_file.c:107
    -
    ntru_mem.h
    header for ntru_mem.c
    -
    STD_FILE_BUF
    #define STD_FILE_BUF
    Definition: ntru_file.c:44
    -
    read_file
    string * read_file(char const *const filename)
    Definition: ntru_file.c:50
    -
    ntru_common.h
    common macros/functions
    -
    NTRU_WARN_DEBUG
    #define NTRU_WARN_DEBUG(...)
    Definition: ntru_err.h:52
    -
    ntru_err.h
    error handling
    -
    ntru_malloc
    void * ntru_malloc(size_t size)
    Definition: ntru_mem.c:38
    -
    ntru_string.h
    header for ntru_string.c
    -
    string::ptr
    char * ptr
    Definition: ntru_string.h:49
    -
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    string * read_file (char const *const filename)
     
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    header for ntru_file.c

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    Header for the external API of ntru_file.c.

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    Function Documentation

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    -
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    - - - -
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    filenamethe name of the file to write to
    -
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    1 /*
    -
    2  * Copyright (C) 2014 FH Bielefeld
    -
    3  *
    -
    4  * This file is part of a FH Bielefeld project.
    -
    5  *
    -
    6  * This library is free software; you can redistribute it and/or
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    -
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    -
    9  * version 2.1 of the License, or (at your option) any later version.
    -
    10  *
    -
    11  * This library is distributed in the hope that it will be useful,
    -
    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    -
    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    -
    14  * Lesser General Public License for more details.
    -
    15  *
    -
    16  * You should have received a copy of the GNU Lesser General Public
    -
    17  * License along with this library; if not, write to the Free Software
    -
    18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
    -
    19  * MA 02110-1301 USA
    -
    20  */
    -
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    -
    28 #ifndef NTRU_FILE_H
    -
    29 #define NTRU_FILE_H
    -
    30 
    -
    31 
    -
    32 #include "ntru_common.h"
    -
    33 #include "ntru_string.h"
    -
    34 
    -
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    -
    36 
    -
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    -
    45 string *
    -
    46 read_file(char const * const filename);
    -
    47 
    -
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    -
    57 write_file(string const *wstring, char const * const filename);
    -
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    -
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    -
    60 #endif /* NTRU_FILE_H */
    -
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    Definition: ntru_file.c:107
    -
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    Definition: ntru_file.c:50
    -
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    -
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    -
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    key creation and operations -More...

    -
    #include "ntru_ascii_poly.h"
    -#include "ntru_file.h"
    -#include "ntru_keypair.h"
    -#include "ntru_params.h"
    -#include "ntru_poly.h"
    -#include "ntru_poly_ascii.h"
    -#include "ntru_string.h"
    -#include <fmpz_poly.h>
    -#include <fmpz.h>
    -#include <stdbool.h>
    -#include <string.h>
    -
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    bool ntru_create_keypair (fmpz_poly_t f, fmpz_poly_t g, keypair *pair, ntru_params *params)
     
    void export_public_key (char const *const filename, fmpz_poly_t pub, ntru_params *params)
     
    void export_priv_key (char const *const filename, fmpz_poly_t priv, ntru_params *params)
     
    void import_public_key (char const *const filename, fmpz_poly_t pub, ntru_params *params)
     
    void import_priv_key (char const *const filename, fmpz_poly_t priv, fmpz_poly_t priv_inv, ntru_params *params)
     
    void ntru_delete_keypair (keypair *pair)
     
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    key creation and operations

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    This file handles the creation of the key pair and possibly common operations on them.

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    ntru_params * params 
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    Export the private key to a file.

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    Creates an NTRU key pair, consisting of public and private components.

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    1 /*
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    2  * Copyright (C) 2014 FH Bielefeld
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    3  *
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    4  * This file is part of a FH Bielefeld project.
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    5  *
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    6  * This library is free software; you can redistribute it and/or
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    7  * modify it under the terms of the GNU Lesser General Public
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    8  * License as published by the Free Software Foundation; either
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    9  * version 2.1 of the License, or (at your option) any later version.
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    10  *
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    11  * This library is distributed in the hope that it will be useful,
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    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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    14  * Lesser General Public License for more details.
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    15  *
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    16  * You should have received a copy of the GNU Lesser General Public
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    17  * License along with this library; if not, write to the Free Software
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    19  * MA 02110-1301 USA
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    29 #include "ntru_ascii_poly.h"
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    30 #include "ntru_file.h"
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    31 #include "ntru_keypair.h"
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    32 #include "ntru_params.h"
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    33 #include "ntru_poly.h"
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    34 #include "ntru_poly_ascii.h"
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    35 #include "ntru_string.h"
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    36 
    -
    37 #include <fmpz_poly.h>
    -
    38 #include <fmpz.h>
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    39 
    -
    40 #include <stdbool.h>
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    41 #include <string.h>
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    42 
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    43 
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    44 /*------------------------------------------------------------------------*/
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    45 
    -
    46 bool
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    47 ntru_create_keypair(
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    48  fmpz_poly_t f,
    -
    49  fmpz_poly_t g,
    -
    50  keypair *pair,
    -
    51  ntru_params *params)
    -
    52 {
    -
    53  bool retval = false;
    -
    54  fmpz_poly_t Fq,
    -
    55  Fp,
    -
    56  pub;
    -
    57 
    -
    58  if (!f || !g || !params)
    -
    59  goto _return;
    -
    60 
    -
    61  fmpz_poly_init(Fq);
    -
    62  fmpz_poly_init(Fp);
    -
    63  fmpz_poly_init(pub);
    -
    64 
    -
    65  if (!poly_inverse_poly_q(f, Fq, params))
    -
    66  goto _cleanup;
    -
    67 
    -
    68  if (!poly_inverse_poly_p(f, Fp, params))
    -
    69  goto _cleanup;
    -
    70 
    -
    71  poly_starmultiply(Fq, g, pub, params, params->q);
    -
    72  fmpz_poly_scalar_mul_ui(pub, pub, params->p);
    -
    73  fmpz_poly_mod_unsigned(pub, params->q);
    -
    74 
    -
    75  fmpz_poly_init(pair->priv);
    -
    76  fmpz_poly_init(pair->priv_inv);
    -
    77  fmpz_poly_init(pair->pub);
    -
    78 
    -
    79  fmpz_poly_set(pair->priv, f);
    -
    80  fmpz_poly_set(pair->priv_inv, Fp);
    -
    81  fmpz_poly_set(pair->pub, pub);
    -
    82 
    -
    83  retval = true;
    -
    84 
    -
    85 _cleanup:
    -
    86  fmpz_poly_clear(Fq);
    -
    87  fmpz_poly_clear(Fp);
    -
    88  fmpz_poly_clear(pub);
    -
    89 _return:
    -
    90  return retval;
    -
    91 }
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    92 
    -
    93 /*------------------------------------------------------------------------*/
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    94 
    -
    95 void
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    96 export_public_key(char const * const filename,
    -
    97  fmpz_poly_t pub,
    -
    98  ntru_params *params)
    -
    99 {
    -
    100  string *pub_string;
    -
    101 
    -
    102  pub_string = poly_to_base64(pub, params);
    -
    103  write_file(pub_string, filename);
    -
    104 
    -
    105  string_delete(pub_string);
    -
    106 }
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    107 
    -
    108 /*------------------------------------------------------------------------*/
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    109 
    -
    110 void
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    111 export_priv_key(char const * const filename,
    -
    112  fmpz_poly_t priv,
    -
    113  ntru_params *params)
    -
    114 {
    -
    115  string *priv_string;
    -
    116  fmpz_poly_t priv_u;
    -
    117 
    -
    118  fmpz_poly_init(priv_u);
    -
    119  fmpz_poly_set(priv_u, priv);
    -
    120  fmpz_poly_mod_unsigned(priv_u, params->p);
    -
    121 
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    122  priv_string = poly_to_base64(priv_u, params);
    -
    123  write_file(priv_string, filename);
    -
    124 
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    125  fmpz_poly_clear(priv_u);
    -
    126  string_delete(priv_string);
    -
    127 }
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    128 
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    129 /*------------------------------------------------------------------------*/
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    130 
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    131 void
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    133  fmpz_poly_t pub,
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    134  ntru_params *params)
    -
    135 {
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    136  string *pub_string;
    -
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    -
    138 
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    139  pub_string = read_file(filename);
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    140  imported = base64_to_poly_arr(pub_string, params);
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    141 
    -
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    143  * went horribly wrong */
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    144  if (*imported[1])
    -
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    -
    146 
    -
    147  fmpz_poly_set(pub, **imported);
    -
    148 
    -
    149  string_delete(pub_string);
    -
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    -
    151  free(imported);
    -
    152 }
    -
    153 
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    154 /*------------------------------------------------------------------------*/
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    155 
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    156 void
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    158  fmpz_poly_t priv,
    -
    159  fmpz_poly_t priv_inv,
    -
    160  ntru_params *params)
    -
    161 {
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    -
    163  fmpz_poly_t **imported,
    -
    164  Fp;
    -
    165 
    -
    166  fmpz_poly_init(Fp);
    -
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    -
    168  pub_string = read_file(filename);
    -
    169 
    -
    170  imported = base64_to_poly_arr(pub_string, params);
    -
    171  fmpz_poly_mod(**imported, params->p);
    -
    172 
    -
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    -
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    -
    175  if (*imported[1])
    -
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    -
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    -
    178  fmpz_poly_set(priv, **imported);
    -
    179 
    -
    180  if (!poly_inverse_poly_p(priv, Fp, params))
    -
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    -
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    -
    183  fmpz_poly_mod(Fp, params->p);
    -
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    -
    185  fmpz_poly_set(priv_inv, Fp);
    -
    186  fmpz_poly_clear(Fp);
    -
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    -
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    -
    189  string_delete(pub_string);
    -
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    -
    191  free(imported);
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    -
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    -
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    -
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    -
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    201  fmpz_poly_clear(pair->pub);
    -
    202 }
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    203 
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    bool ntru_create_keypair (fmpz_poly_t f, fmpz_poly_t g, keypair *pair, ntru_params *params)
     
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    void export_priv_key (char const *const filename, fmpz_poly_t priv, ntru_params *params)
     
    void import_public_key (char const *const filename, fmpz_poly_t pub, ntru_params *params)
     
    void import_priv_key (char const *const filename, fmpz_poly_t priv, fmpz_poly_t priv_inv, ntru_params *params)
     
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    -
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    privwhere to save the private key [out]
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    145 #endif /* NTRU_KEYPAIR_H */
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    1 /*
    -
    2  * Copyright (C) 2014 FH Bielefeld
    -
    3  *
    -
    4  * This file is part of a FH Bielefeld project.
    -
    5  *
    -
    6  * This library is free software; you can redistribute it and/or
    -
    7  * modify it under the terms of the GNU Lesser General Public
    -
    8  * License as published by the Free Software Foundation; either
    -
    9  * version 2.1 of the License, or (at your option) any later version.
    -
    10  *
    -
    11  * This library is distributed in the hope that it will be useful,
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    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    -
    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    -
    14  * Lesser General Public License for more details.
    -
    15  *
    -
    16  * You should have received a copy of the GNU Lesser General Public
    -
    17  * License along with this library; if not, write to the Free Software
    -
    18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
    -
    19  * MA 02110-1301 USA
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    20  */
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    29 #ifndef NTRU_PARAMS_H
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    30 #define NTRU_PARAMS_H
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    36 typedef struct ntru_params ntru_params;
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    43 struct ntru_params {
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    48  uint32_t N;
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    52  uint32_t q;
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    56  uint32_t p;
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    57 };
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    58 
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    59 
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    60 #endif /* NTRU_PARAMS_H */
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    ntru_params::N
    uint32_t N
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    Definition: ntru_params.h:56
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    ntru_params
    Definition: ntru_params.h:43
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    ntru_params::q
    uint32_t q
    Definition: ntru_params.h:52
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    operations on polynomials -More...

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    #include "ntru_err.h"
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    static void poly_mod2_to_modq (const fmpz_poly_t a, fmpz_poly_t Fq, const ntru_params *params)
     
    int fmpz_cmp_si_n (const fmpz_t f, slong g)
     
    void poly_new (fmpz_poly_t new_poly, int const *const c, const size_t len)
     
    void poly_delete (fmpz_poly_t poly)
     
    void poly_delete_array (fmpz_poly_t **poly_array)
     
    void poly_delete_all (fmpz_poly_t poly,...)
     
    void fmpz_poly_mod_unsigned (fmpz_poly_t a, const uint32_t mod)
     
    void fmpz_poly_mod (fmpz_poly_t a, const uint32_t mod)
     
    void fmpz_poly_set_coeff_fmpz_n (fmpz_poly_t poly, slong n, const fmpz_t x)
     
    int fmpz_invmod_ui (fmpz_t f, const fmpz_t g, const uint32_t mod)
     
    void fmpz_add_n (fmpz_t f, const fmpz_t g, const fmpz_t h)
     
    void poly_starmultiply (const fmpz_poly_t a, const fmpz_poly_t b, fmpz_poly_t c, const ntru_params *params, uint32_t modulus)
     
    bool poly_inverse_poly_q (const fmpz_poly_t a, fmpz_poly_t Fq, const ntru_params *params)
     
    bool poly_inverse_poly_p (const fmpz_poly_t a, fmpz_poly_t Fp, const ntru_params *params)
     
    void poly_draw (const fmpz_poly_t poly)
     
    void poly_draw_pretty (const fmpz_poly_t poly)
     
    -

    Detailed Description

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    operations on polynomials

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    This files purpose is to handle polynomials in general, allowing modification, arithmetic and common algorithms like inverting them.

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    Definition in file ntru_poly.c.

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    Function Documentation

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    void fmpz_add_n (fmpz_t f,
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    const fmpz_t h 
    )
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    The same as fmpz_add() except that it handles NULL pointer for g and h.

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    Definition at line 222 of file ntru_poly.c.

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    )
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    The same as fmpz_cmp_si except that it will interpret f as a 0-coefficient if it is a NULL pointer.

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    fthe fmpz value to use for comparison
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    Definition at line 93 of file ntru_poly.c.

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    int fmpz_invmod_ui (fmpz_t f,
    const fmpz_t g,
    const uint32_t mod 
    )
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    Wrapper around fmpz_invmod() where we convert mod to an fmpz_t implicitly.

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    Definition at line 210 of file ntru_poly.c.

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    void fmpz_poly_mod (fmpz_poly_t a,
    const uint32_t mod 
    )
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    Calls fmpz_poly_get_nmod_poly() and fmpz_poly_set_nmod_poly() in a row, so we don't have to deal with the intermediate nmod_poly_t type if we don't need it.

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    This also normalises the coefficients to the interval -m/2 <= r < m/2.

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    athe polynom to apply the modulus to
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    Definition at line 182 of file ntru_poly.c.

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    )
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    Calls fmpz_poly_get_nmod_poly() and fmpz_poly_set_nmod_poly_unsigned() in a row, so we don't have to deal with the intermediate nmod_poly_t type if we don't need it.

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    athe polynom to apply the modulus to
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    Definition at line 166 of file ntru_poly.c.

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    void fmpz_poly_set_coeff_fmpz_n (fmpz_poly_t poly,
    slong n,
    const fmpz_t x 
    )
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    The same as fmpz_poly_set_coeff_fmpz() except that it will take care of null-pointer coefficients and use fmpz_poly_set_coeff_si() in that case.

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    Definition at line 198 of file ntru_poly.c.

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    This deletes the internal structure of a polynomial, and frees the pointer.

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    Definition at line 123 of file ntru_poly.c.

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    void poly_delete_all (fmpz_poly_t poly,
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    This deletes the internal structure of all polynomials, and frees the pointers. You must call this with NULL as last argument!

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    Definition at line 149 of file ntru_poly.c.

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    void poly_delete_array (fmpz_poly_t ** poly_array)
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    Delete the internal structure of a polynomial array which must be NULL terminated. It is expected that poly_array is not on the stack and was obtained by a function like ascii_to_poly().

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    Definition at line 131 of file ntru_poly.c.

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    void poly_draw_pretty (const fmpz_poly_t poly)
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    Definition at line 583 of file ntru_poly.c.

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    bool poly_inverse_poly_p (const fmpz_poly_t a,
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    const ntru_params * params 
    )
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    Compute the inverse of a polynomial in (Z/pZ)[X]/(X^N - 1). See NTRU Cryptosystems Tech Report #014 "Almost Inverses -and Fast NTRU Key Creation."

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    apolynomial to invert
    Fppolynomial [out]
    paramsNTRU parameters
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    Definition at line 409 of file ntru_poly.c.

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    bool poly_inverse_poly_q (const fmpz_poly_t a,
    fmpz_poly_t Fq,
    const ntru_params * params 
    )
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    Compute the inverse of a polynomial in modulo a power of 2, which is q. This is based off the pseudo-code for "Inversion -in (Z/2Z)[X](X^N - 1)" and "Inversion in (Z/p^r Z)[X](X^N - 1)". See NTRU Cryptosystems Tech Report #014 "Almost Inverses -and Fast NTRU Key Creation."

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    Fqpolynomial [out]
    paramsNTRU parameters
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    Definition at line 297 of file ntru_poly.c.

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    const ntru_params * params 
    )
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    Find the inverse polynomial modulo a power of 2, which is q.

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    Definition at line 63 of file ntru_poly.c.

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    void poly_new (fmpz_poly_t new_poly,
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    )
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    Initializes and builds a polynomial with the coefficient values of c[] of size len within NTRU parameters and returns a newly allocated polynomial. For an empty polynom, both c and len can be NULL/0.

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    Definition at line 110 of file ntru_poly.c.

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    const fmpz_poly_t b,
    fmpz_poly_t c,
    const ntru_params * params,
    uint32_t modulus 
    )
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    Starmultiplication, as follows: c = a * b mod (x^N − 1)

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    apolynom to multiply (can be the same as c)
    bpolynom to multiply
    cpolynom [out]
    paramsNTRU parameters
    moduluswhether we use p or q
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    Definition at line 239 of file ntru_poly.c.

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    1 /*
    -
    2  * Copyright (C) 2014 FH Bielefeld
    -
    3  *
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    4  * This file is part of a FH Bielefeld project.
    -
    5  *
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    6  * This library is free software; you can redistribute it and/or
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    7  * modify it under the terms of the GNU Lesser General Public
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    8  * License as published by the Free Software Foundation; either
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    9  * version 2.1 of the License, or (at your option) any later version.
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    10  *
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    11  * This library is distributed in the hope that it will be useful,
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    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    -
    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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    14  * Lesser General Public License for more details.
    -
    15  *
    -
    16  * You should have received a copy of the GNU Lesser General Public
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    17  * License along with this library; if not, write to the Free Software
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    18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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    19  * MA 02110-1301 USA
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    20  */
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    30 #include "ntru_err.h"
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    31 #include "ntru_mem.h"
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    32 #include "ntru_params.h"
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    33 #include "ntru_poly.h"
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    35 #include <stdarg.h>
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    36 #include <stdbool.h>
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    37 #include <stdint.h>
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    38 #include <stdio.h>
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    39 #include <stdlib.h>
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    40 #include <sys/types.h>
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    42 #include <fmpz_poly.h>
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    43 #include <fmpz.h>
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    54 static
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    55 void poly_mod2_to_modq(const fmpz_poly_t a,
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    57  const ntru_params *params);
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    59 
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    60 /*------------------------------------------------------------------------*/
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    61 
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    62 static void
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    63 poly_mod2_to_modq(const fmpz_poly_t a,
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    64  fmpz_poly_t Fq,
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    65  const ntru_params *params)
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    66 {
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    67  int v = 2;
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    68  fmpz_poly_t poly_tmp, two;
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    69 
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    70  fmpz_poly_init(poly_tmp);
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    71  fmpz_poly_zero(poly_tmp);
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    72  fmpz_poly_init(two);
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    73  fmpz_poly_set_coeff_ui(two, 0, 2);
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    74 
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    75  while (v < (int)(params->q)) {
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    76  v = v * 2;
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    77 
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    78  poly_starmultiply(a, Fq, poly_tmp, params, v);
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    79  fmpz_poly_sub(poly_tmp, two, poly_tmp);
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    80  fmpz_poly_mod_unsigned(poly_tmp, v);
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    81  poly_starmultiply(Fq, poly_tmp, Fq, params, v);
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    82 
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    83  }
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    84 
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    85  fmpz_poly_clear(poly_tmp);
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    86  fmpz_poly_clear(two);
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    90 /*------------------------------------------------------------------------*/
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    91 
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    93 fmpz_cmp_si_n(const fmpz_t f, slong g)
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    105 }
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    106 
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    107 /*------------------------------------------------------------------------*/
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    109 void
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    110 poly_new(fmpz_poly_t new_poly,
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    118 }
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    119 
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    120 /*------------------------------------------------------------------------*/
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    124 {
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    125  fmpz_poly_clear(poly);
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    126 }
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    127 
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    128 /*------------------------------------------------------------------------*/
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    129 
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    130 void
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    131 poly_delete_array(fmpz_poly_t **poly_array)
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    132 {
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    133  uint32_t i = 0;
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    134 
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    135  while(poly_array[i]) {
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    136  poly_delete(*(poly_array[i]));
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    137  free(poly_array[i]);
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    138  i++;
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    139  }
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    140 
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    141  /* avoid double free */
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    144 }
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    145 
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    146 /*------------------------------------------------------------------------*/
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    147 
    -
    148 void
    -
    149 poly_delete_all(fmpz_poly_t poly, ...)
    -
    150 {
    -
    151  fmpz_poly_struct *next_poly;
    -
    152  va_list args;
    -
    153 
    -
    154  next_poly = poly;
    -
    155  va_start(args, poly);
    -
    156  while (next_poly != NULL) {
    -
    157  poly_delete(next_poly);
    -
    158  next_poly = va_arg(args, fmpz_poly_struct*);
    -
    159  }
    -
    160  va_end(args);
    -
    161 }
    -
    162 
    -
    163 /*------------------------------------------------------------------------*/
    -
    164 
    -
    165 void
    -
    166 fmpz_poly_mod_unsigned(fmpz_poly_t a,
    -
    167  const uint32_t mod)
    -
    168 {
    -
    169  nmod_poly_t nmod_tmp;
    -
    170 
    -
    171  nmod_poly_init(nmod_tmp, mod);
    -
    172 
    -
    173  fmpz_poly_get_nmod_poly(nmod_tmp, a);
    -
    174  fmpz_poly_set_nmod_poly_unsigned(a, nmod_tmp);
    -
    175 
    -
    176  nmod_poly_clear(nmod_tmp);
    -
    177 }
    -
    178 
    -
    179 /*------------------------------------------------------------------------*/
    -
    180 
    -
    181 void
    -
    182 fmpz_poly_mod(fmpz_poly_t a,
    -
    183  const uint32_t mod)
    -
    184 {
    -
    185  nmod_poly_t nmod_tmp;
    -
    186 
    -
    187  nmod_poly_init(nmod_tmp, mod);
    -
    188 
    -
    189  fmpz_poly_get_nmod_poly(nmod_tmp, a);
    -
    190  fmpz_poly_set_nmod_poly(a, nmod_tmp);
    -
    191 
    -
    192  nmod_poly_clear(nmod_tmp);
    -
    193 }
    -
    194 
    -
    195 /*------------------------------------------------------------------------*/
    -
    196 
    -
    197 void
    -
    198 fmpz_poly_set_coeff_fmpz_n(fmpz_poly_t poly, slong n,
    -
    199  const fmpz_t x)
    -
    200 {
    -
    201  if (x)
    -
    202  fmpz_poly_set_coeff_fmpz(poly, n, x);
    -
    203  else
    -
    204  fmpz_poly_set_coeff_si(poly, n, 0);
    -
    205 }
    -
    206 
    -
    207 /*------------------------------------------------------------------------*/
    -
    208 
    -
    209 int
    -
    210 fmpz_invmod_ui(fmpz_t f, const fmpz_t g, const uint32_t mod)
    -
    211 {
    -
    212  fmpz_t modulus;
    -
    213 
    -
    214  fmpz_init_set_ui(modulus, mod);
    -
    215 
    -
    216  return fmpz_invmod(f, g, modulus);
    -
    217 }
    -
    218 
    -
    219 /*------------------------------------------------------------------------*/
    -
    220 
    -
    221 void
    -
    222 fmpz_add_n(fmpz_t f, const fmpz_t g, const fmpz_t h)
    -
    223 {
    -
    224  if (!g && !h) {
    -
    225  fmpz_zero(f);
    -
    226  } else {
    -
    227  if (!g && h)
    -
    228  fmpz_add_ui(f, h, 0);
    -
    229  else if (g && !h)
    -
    230  fmpz_add_ui(f, g, 0);
    -
    231  else
    -
    232  fmpz_add(f, g, h);
    -
    233  }
    -
    234 }
    -
    235 
    -
    236 /*------------------------------------------------------------------------*/
    -
    237 
    -
    238 void
    -
    239 poly_starmultiply(const fmpz_poly_t a,
    -
    240  const fmpz_poly_t b,
    -
    241  fmpz_poly_t c,
    -
    242  const ntru_params *params,
    -
    243  uint32_t modulus)
    -
    244 {
    -
    245  fmpz_poly_t a_tmp;
    -
    246  fmpz_t c_coeff_k;
    -
    247 
    -
    248  fmpz_poly_init(a_tmp);
    -
    249  fmpz_init(c_coeff_k);
    -
    250 
    -
    251  /* avoid side effects */
    -
    252  fmpz_poly_set(a_tmp, a);
    -
    253  fmpz_poly_zero(c);
    -
    254 
    -
    255  for (int k = params->N - 1; k >= 0; k--) {
    -
    256  int j;
    -
    257 
    -
    258  j = k + 1;
    -
    259 
    -
    260  fmpz_set_si(c_coeff_k, 0);
    -
    261 
    -
    262  for (int i = params->N - 1; i >= 0; i--) {
    -
    263  fmpz *a_tmp_coeff_i,
    -
    264  *b_coeff_j;
    -
    265 
    -
    266  if (j == (int)(params->N))
    -
    267  j = 0;
    -
    268 
    -
    269  a_tmp_coeff_i = fmpz_poly_get_coeff_ptr(a_tmp, i);
    -
    270  b_coeff_j = fmpz_poly_get_coeff_ptr(b, j);
    -
    271 
    -
    272  if (fmpz_cmp_si_n(a_tmp_coeff_i, 0) &&
    -
    273  fmpz_cmp_si_n(b_coeff_j, 0)) {
    -
    274  fmpz_t fmpz_tmp;
    -
    275 
    -
    276  fmpz_init(fmpz_tmp);
    -
    277 
    -
    278  fmpz_mul(fmpz_tmp, a_tmp_coeff_i, b_coeff_j);
    -
    279  fmpz_add(fmpz_tmp, fmpz_tmp, c_coeff_k);
    -
    280  fmpz_mod_ui(c_coeff_k, fmpz_tmp, modulus);
    -
    281 
    -
    282  fmpz_poly_set_coeff_fmpz(c, k, c_coeff_k);
    -
    283 
    -
    284  fmpz_clear(fmpz_tmp);
    -
    285  }
    -
    286  j++;
    -
    287  }
    -
    288  fmpz_clear(c_coeff_k);
    -
    289  }
    -
    290 
    -
    291  fmpz_poly_clear(a_tmp);
    -
    292 }
    -
    293 
    -
    294 /*------------------------------------------------------------------------*/
    -
    295 
    -
    296 bool
    -
    297 poly_inverse_poly_q(const fmpz_poly_t a,
    -
    298  fmpz_poly_t Fq,
    -
    299  const ntru_params *params)
    -
    300 {
    -
    301  bool retval = false;
    -
    302  int k = 0,
    -
    303  j = 0;
    -
    304  fmpz *b_last;
    -
    305  fmpz_poly_t a_tmp,
    -
    306  b,
    -
    307  c,
    -
    308  f,
    -
    309  g;
    -
    310 
    -
    311  /* general initialization of temp variables */
    -
    312  fmpz_poly_init(b);
    -
    313  fmpz_poly_set_coeff_ui(b, 0, 1);
    -
    314  fmpz_poly_init(c);
    -
    315  fmpz_poly_init(f);
    -
    316  fmpz_poly_set(f, a);
    -
    317 
    -
    318  /* set g(x) = x^N − 1 */
    -
    319  fmpz_poly_init(g);
    -
    320  fmpz_poly_set_coeff_si(g, 0, -1);
    -
    321  fmpz_poly_set_coeff_si(g, params->N, 1);
    -
    322 
    -
    323  /* avoid side effects */
    -
    324  fmpz_poly_init(a_tmp);
    -
    325  fmpz_poly_set(a_tmp, a);
    -
    326  fmpz_poly_zero(Fq);
    -
    327 
    -
    328  while (1) {
    -
    329  while (fmpz_is_zero(fmpz_poly_get_coeff_ptr(f, 0))) {
    -
    330  for (uint32_t i = 1; i <= params->N; i++) {
    -
    331  fmpz *f_coeff = fmpz_poly_get_coeff_ptr(f, i);
    -
    332  fmpz *c_coeff = fmpz_poly_get_coeff_ptr(c, params->N - i);
    -
    333 
    -
    334  /* f(x) = f(x) / x */
    -
    335  fmpz_poly_set_coeff_fmpz_n(f, i - 1,
    -
    336  f_coeff);
    -
    337 
    -
    338  /* c(x) = c(x) * x */
    -
    339  fmpz_poly_set_coeff_fmpz_n(c, params->N + 1 - i,
    -
    340  c_coeff);
    -
    341  }
    -
    342 
    -
    343  fmpz_poly_set_coeff_si(f, params->N, 0);
    -
    344  fmpz_poly_set_coeff_si(c, 0, 0);
    -
    345 
    -
    346  k++;
    -
    347 
    -
    348  if (fmpz_poly_degree(f) == -1)
    -
    349  goto _cleanup;
    -
    350  }
    -
    351 
    -
    352  if (fmpz_poly_degree(f) == 0)
    -
    353  break;
    -
    354 
    -
    355  if (fmpz_poly_degree(f) < fmpz_poly_degree(g)) {
    -
    356  fmpz_poly_swap(f, g);
    -
    357  fmpz_poly_swap(b, c);
    -
    358  }
    -
    359 
    -
    360  fmpz_poly_add(f, g, f);
    -
    361  fmpz_poly_mod_unsigned(f, 2);
    -
    362 
    -
    363  fmpz_poly_add(b, c, b);
    -
    364  fmpz_poly_mod_unsigned(b, 2);
    -
    365  }
    -
    366 
    -
    367  k = k % params->N;
    -
    368 
    -
    369  b_last = fmpz_poly_get_coeff_ptr(b, params->N);
    -
    370  if (fmpz_cmp_si_n(b_last, 0))
    -
    371  goto _cleanup;
    -
    372 
    -
    373  /* Fq(x) = x^(N-k) * b(x) */
    -
    374  for (int i = params->N - 1; i >= 0; i--) {
    -
    375  fmpz *b_i;
    -
    376 
    -
    377  j = i - k;
    -
    378 
    -
    379  if (j < 0)
    -
    380  j = j + params->N;
    -
    381 
    -
    382  b_i = fmpz_poly_get_coeff_ptr(b, i);
    -
    383  fmpz_poly_set_coeff_fmpz_n(Fq, j, b_i);
    -
    384  }
    -
    385 
    -
    386  poly_mod2_to_modq(a_tmp, Fq, params);
    -
    387 
    -
    388  /* check if the f * Fq = 1 (mod p) condition holds true */
    -
    389  fmpz_poly_set(a_tmp, a);
    -
    390  poly_starmultiply(a_tmp, Fq, a_tmp, params, params->q);
    -
    391  if (fmpz_poly_is_one(a_tmp))
    -
    392  retval = true;
    -
    393  else
    -
    394  fmpz_poly_zero(Fq);
    -
    395 
    -
    396 _cleanup:
    -
    397  fmpz_poly_clear(a_tmp);
    -
    398  fmpz_poly_clear(b);
    -
    399  fmpz_poly_clear(c);
    -
    400  fmpz_poly_clear(f);
    -
    401  fmpz_poly_clear(g);
    -
    402 
    -
    403  return retval;
    -
    404 }
    -
    405 
    -
    406 /*------------------------------------------------------------------------*/
    -
    407 
    -
    408 bool
    -
    409 poly_inverse_poly_p(const fmpz_poly_t a,
    -
    410  fmpz_poly_t Fp,
    -
    411  const ntru_params *params)
    -
    412 {
    -
    413  bool retval = false;
    -
    414  int k = 0,
    -
    415  j = 0;
    -
    416  fmpz *b_last;
    -
    417  fmpz_poly_t a_tmp,
    -
    418  b,
    -
    419  c,
    -
    420  f,
    -
    421  g;
    -
    422 
    -
    423  /* general initialization of temp variables */
    -
    424  fmpz_poly_init(b);
    -
    425  fmpz_poly_set_coeff_ui(b, 0, 1);
    -
    426  fmpz_poly_init(c);
    -
    427  fmpz_poly_init(f);
    -
    428  fmpz_poly_set(f, a);
    -
    429 
    -
    430  /* set g(x) = x^N − 1 */
    -
    431  fmpz_poly_init(g);
    -
    432  fmpz_poly_set_coeff_si(g, 0, -1);
    -
    433  fmpz_poly_set_coeff_si(g, params->N, 1);
    -
    434 
    -
    435  /* avoid side effects */
    -
    436  fmpz_poly_init(a_tmp);
    -
    437  fmpz_poly_set(a_tmp, a);
    -
    438  fmpz_poly_zero(Fp);
    -
    439 
    -
    440  while (1) {
    -
    441  while (fmpz_is_zero(fmpz_poly_get_coeff_ptr(f, 0))) {
    -
    442  for (uint32_t i = 1; i <= params->N; i++) {
    -
    443  fmpz *f_coeff = fmpz_poly_get_coeff_ptr(f, i);
    -
    444  fmpz *c_coeff = fmpz_poly_get_coeff_ptr(c, params->N - i);
    -
    445 
    -
    446  /* f(x) = f(x) / x */
    -
    447  fmpz_poly_set_coeff_fmpz_n(f, i - 1,
    -
    448  f_coeff);
    -
    449 
    -
    450  /* c(x) = c(x) * x */
    -
    451  fmpz_poly_set_coeff_fmpz_n(c, params->N + 1 - i,
    -
    452  c_coeff);
    -
    453  }
    -
    454 
    -
    455  fmpz_poly_set_coeff_si(f, params->N, 0);
    -
    456  fmpz_poly_set_coeff_si(c, 0, 0);
    -
    457 
    -
    458  k++;
    -
    459 
    -
    460  if (fmpz_poly_degree(f) == -1)
    -
    461  goto cleanup;
    -
    462  }
    -
    463 
    -
    464  if (fmpz_poly_degree(f) == 0)
    -
    465  break;
    -
    466 
    -
    467  if (fmpz_poly_degree(f) < fmpz_poly_degree(g)) {
    -
    468  /* exchange f and g and exchange b and c */
    -
    469  fmpz_poly_swap(f, g);
    -
    470  fmpz_poly_swap(b, c);
    -
    471  }
    -
    472 
    -
    473  {
    -
    474  fmpz_poly_t c_tmp,
    -
    475  g_tmp;
    -
    476  fmpz_t u,
    -
    477  mp_tmp;
    -
    478 
    -
    479  fmpz_init(u);
    -
    480  fmpz_zero(u);
    -
    481 
    -
    482  fmpz_init_set(mp_tmp, fmpz_poly_get_coeff_ptr(f, 0));
    -
    483 
    -
    484  fmpz_poly_init(g_tmp);
    -
    485  fmpz_poly_set(g_tmp, g);
    -
    486 
    -
    487  fmpz_poly_init(c_tmp);
    -
    488  fmpz_poly_set(c_tmp, c);
    -
    489 
    -
    490  /* u = f[0] * g[0]^(-1) mod p */
    -
    491  /* = (f[0] mod p) * (g[0] inverse mod p) mod p */
    -
    492  fmpz_invmod_ui(u,
    -
    493  fmpz_poly_get_coeff_ptr(g, 0),
    -
    494  params->p);
    -
    495  fmpz_mod_ui(mp_tmp, mp_tmp, params->p);
    -
    496  fmpz_mul(u, mp_tmp, u);
    -
    497  fmpz_mod_ui(u, u, params->p);
    -
    498 
    -
    499  /* f = f - u * g mod p */
    -
    500  fmpz_poly_scalar_mul_fmpz(g_tmp, g_tmp, u);
    -
    501  fmpz_poly_sub(f, g_tmp, f);
    -
    502  fmpz_poly_mod_unsigned(f, params->p);
    -
    503 
    -
    504  /* b = b - u * c mod p */
    -
    505  fmpz_poly_scalar_mul_fmpz(c_tmp, c_tmp, u);
    -
    506  fmpz_poly_sub(b, c_tmp, b);
    -
    507  fmpz_poly_mod_unsigned(b, params->p);
    -
    508 
    -
    509  fmpz_clear(u);
    -
    510  fmpz_poly_clear(g_tmp);
    -
    511  fmpz_poly_clear(c_tmp);
    -
    512  }
    -
    513  }
    -
    514 
    -
    515  k = k % params->N;
    -
    516 
    -
    517  b_last = fmpz_poly_get_coeff_ptr(b, params->N);
    -
    518  if (fmpz_cmp_si_n(b_last, 0))
    -
    519  goto cleanup;
    -
    520 
    -
    521  /* Fp(x) = x^(N-k) * b(x) */
    -
    522  for (int i = params->N - 1; i >= 0; i--) {
    -
    523  fmpz *b_i;
    -
    524 
    -
    525  /* b(X) = f[0]^(-1) * b(X) (mod p) */
    -
    526  {
    -
    527  fmpz_t mp_tmp;
    -
    528 
    -
    529  fmpz_init(mp_tmp);
    -
    530 
    -
    531  fmpz_invmod_ui(mp_tmp,
    -
    532  fmpz_poly_get_coeff_ptr(f, 0),
    -
    533  params->p);
    -
    534 
    -
    535  if (fmpz_poly_get_coeff_ptr(b, i)) {
    -
    536  fmpz_mul(fmpz_poly_get_coeff_ptr(b, i),
    -
    537  fmpz_poly_get_coeff_ptr(b, i),
    -
    538  mp_tmp);
    -
    539  fmpz_mod_ui(fmpz_poly_get_coeff_ptr(b, i),
    -
    540  fmpz_poly_get_coeff_ptr(b, i),
    -
    541  params->p);
    -
    542  }
    -
    543  }
    -
    544 
    -
    545  j = i - k;
    -
    546  if (j < 0)
    -
    547  j = j + params->N;
    -
    548 
    -
    549  b_i = fmpz_poly_get_coeff_ptr(b, i);
    -
    550  fmpz_poly_set_coeff_fmpz_n(Fp, j, b_i);
    -
    551  }
    -
    552 
    -
    553  /* check if the f * Fp = 1 (mod p) condition holds true */
    -
    554  fmpz_poly_set(a_tmp, a);
    -
    555  poly_starmultiply(a_tmp, Fp, a_tmp, params, params->p);
    -
    556  if (fmpz_poly_is_one(a_tmp))
    -
    557  retval = true;
    -
    558  else
    -
    559  fmpz_poly_zero(Fp);
    -
    560 
    -
    561 cleanup:
    -
    562  fmpz_poly_clear(a_tmp);
    -
    563  fmpz_poly_clear(b);
    -
    564  fmpz_poly_clear(c);
    -
    565  fmpz_poly_clear(f);
    -
    566  fmpz_poly_clear(g);
    -
    567 
    -
    568  return retval;
    -
    569 }
    -
    570 
    -
    571 /*------------------------------------------------------------------------*/
    -
    572 
    -
    573 void
    -
    574 poly_draw(const fmpz_poly_t poly)
    -
    575 {
    -
    576  fmpz_poly_print(poly);
    -
    577  flint_printf("\n");
    -
    578 }
    -
    579 
    -
    580 /*------------------------------------------------------------------------*/
    -
    581 
    -
    582 void
    -
    583 poly_draw_pretty(const fmpz_poly_t poly)
    -
    584 {
    -
    585  fmpz_poly_print_pretty(poly, "x");
    -
    586  flint_printf("\n");
    -
    587 }
    -
    588 
    -
    589 /*------------------------------------------------------------------------*/
    -
    poly_inverse_poly_q
    bool poly_inverse_poly_q(const fmpz_poly_t a, fmpz_poly_t Fq, const ntru_params *params)
    Definition: ntru_poly.c:297
    -
    ntru_params::N
    uint32_t N
    Definition: ntru_params.h:48
    -
    fmpz_poly_mod_unsigned
    void fmpz_poly_mod_unsigned(fmpz_poly_t a, const uint32_t mod)
    Definition: ntru_poly.c:166
    -
    fmpz_poly_mod
    void fmpz_poly_mod(fmpz_poly_t a, const uint32_t mod)
    Definition: ntru_poly.c:182
    -
    ntru_params::p
    uint32_t p
    Definition: ntru_params.h:56
    -
    poly_inverse_poly_p
    bool poly_inverse_poly_p(const fmpz_poly_t a, fmpz_poly_t Fp, const ntru_params *params)
    Definition: ntru_poly.c:409
    -
    ntru_params
    Definition: ntru_params.h:43
    -
    ntru_mem.h
    header for ntru_mem.c
    -
    fmpz_invmod_ui
    int fmpz_invmod_ui(fmpz_t f, const fmpz_t g, const uint32_t mod)
    Definition: ntru_poly.c:210
    -
    poly_draw
    void poly_draw(const fmpz_poly_t poly)
    Definition: ntru_poly.c:574
    -
    ntru_params.h
    NTRU parameters.
    -
    fmpz_poly_set_coeff_fmpz_n
    void fmpz_poly_set_coeff_fmpz_n(fmpz_poly_t poly, slong n, const fmpz_t x)
    Definition: ntru_poly.c:198
    -
    poly_starmultiply
    void poly_starmultiply(const fmpz_poly_t a, const fmpz_poly_t b, fmpz_poly_t c, const ntru_params *params, uint32_t modulus)
    Definition: ntru_poly.c:239
    -
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    int fmpz_cmp_si_n (const fmpz_t f, slong g)
     
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    void fmpz_poly_set_coeff_fmpz_n (fmpz_poly_t poly, slong n, const fmpz_t x)
     
    int fmpz_invmod_ui (fmpz_t f, const fmpz_t g, const uint32_t mod)
     
    void fmpz_add_n (fmpz_t f, const fmpz_t g, const fmpz_t h)
     
    void poly_starmultiply (const fmpz_poly_t a, const fmpz_poly_t b, fmpz_poly_t c, const ntru_params *params, uint32_t modulus)
     
    bool poly_inverse_poly_q (const fmpz_poly_t a, fmpz_poly_t Fq, const ntru_params *params)
     
    bool poly_inverse_poly_p (const fmpz_poly_t a, fmpz_poly_t Fp, const ntru_params *params)
     
    void poly_draw (const fmpz_poly_t poly)
     
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    1 /*
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    2  * Copyright (C) 2014 FH Bielefeld
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    4  * This file is part of a FH Bielefeld project.
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    5  *
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    6  * This library is free software; you can redistribute it and/or
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    7  * modify it under the terms of the GNU Lesser General Public
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    8  * License as published by the Free Software Foundation; either
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    9  * version 2.1 of the License, or (at your option) any later version.
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    10  *
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    11  * This library is distributed in the hope that it will be useful,
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    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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    14  * Lesser General Public License for more details.
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    15  *
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    16  * You should have received a copy of the GNU Lesser General Public
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    17  * License along with this library; if not, write to the Free Software
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    18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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    19  * MA 02110-1301 USA
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    void poly_new(fmpz_poly_t new_poly, int const *const c, const size_t len)
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    static string * get_bin_arr_to_ascii (const char *binary_rep)
     
    string * bin_poly_to_ascii (const fmpz_poly_t poly, const ntru_params *params)
     
    string * bin_poly_arr_to_ascii (const fmpz_poly_t **bin_poly_arr, const uint32_t poly_c, const ntru_params *params)
     
    string * poly_to_ascii (const fmpz_poly_t poly, const ntru_params *params)
     
    string * poly_arr_to_ascii (const fmpz_poly_t **poly_array, const uint32_t poly_c, const ntru_params *params)
     
    string * poly_to_base64 (const fmpz_poly_t poly, const ntru_params *params)
     
    string * poly_arr_to_base64 (const fmpz_poly_t **poly_array, const uint32_t poly_c, const ntru_params *params)
     
    -

    Detailed Description

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    polynomials to acii

    -

    This file allows to convert polynomials to ascii strings, including base64 encoded.

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    Definition in file ntru_poly_ascii.c.

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    Function Documentation

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    string* bin_poly_arr_to_ascii (const fmpz_poly_t ** bin_poly_arr,
    const uint32_t poly_c,
    const ntru_params * params 
    )
    -
    -

    Convert an array of binary polynomials back to a real string. The polynomial coefficients represent a binary format of the ascii string with the following mapping:

    -

    1 => 1

    -

    -1 => 0

    -

    2 => 0

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    The 2's are only used for filling up the last polynomial, so they will just end up as '\0's at the end of the string and will not confuse the result.

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    bin_poly_arrthe array of polynomials
    poly_cthe amount of polynomials in bin_poly_arr
    paramsthe NTRU parameters
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    Definition at line 143 of file ntru_poly_ascii.c.

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    string* bin_poly_to_ascii (const fmpz_poly_t poly,
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    )
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    Convert a single binary polynomial back to a real string. The polynomial coefficients represent a binary format of the ascii string with the following mapping:

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    1 => 1

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    The 2's are only used for filling up the rest of the polynomial, so they will just end up as '\0's at the end of the string and will not confuse the result.

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    paramsthe NTRU parameters
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    Definition at line 114 of file ntru_poly_ascii.c.

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    Converts a binary representation of multiple concatenated integers to the corresponding array of ascii chars, which is NULL-terminated.

    -

    It reads in 8bit chunks, as in:

    -

    10110101|00111100|01011001 => 90|60|89 => "Z<Y"

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    Chunks that are 00000000 are stripped from the result.

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    Definition at line 69 of file ntru_poly_ascii.c.

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    string* poly_arr_to_ascii (const fmpz_poly_t ** poly_array,
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    const ntru_params * params 
    )
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    Convert an array of polynomials back to a real string. The polynomial coefficients are expected to be in the range [0, q-1] and will be casted back to chars without any mapping.

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    Trailing q coefficients are only used for filling up the rest of a polynomial with '\0', so they will not confuse the result.

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    poly_cthe amount of polynomials in poly_arr
    paramsthe NTRU parameters
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    Definition at line 203 of file ntru_poly_ascii.c.

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    string* poly_arr_to_base64 (const fmpz_poly_t ** poly_arr,
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    const ntru_params * params 
    )
    -
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    Convert an array of polynomials back to a real string which is base64 encoded. The polynomial coefficients are expected to be in the range [0, q-1] and will be casted back to chars without any mapping.

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    Trailing q coefficients are only used for filling up the rest of a polynomial with '\0', so they will not confuse the result.

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    Definition at line 264 of file ntru_poly_ascii.c.

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    Convert a single polynom back to a real string which is ascii encoded (full 256 C char spectrum). The polynomial coefficients are expected to be in the range [0, q-1] and will be casted back to chars without any mapping.

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    Trailing q coefficients are only used for filling up the rest of a polynomial with '\0', so they will not confuse the result.

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    Convert a single polynom back to a real string which is base64 encoded. The polynomial coefficients are expected to be in the range [0, q-1] and will be casted back to chars without any mapping.

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    Definition at line 237 of file ntru_poly_ascii.c.

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    - - diff --git a/ntru__poly__ascii_8c__incl.map b/ntru__poly__ascii_8c__incl.map deleted file mode 100644 index 0369b78..0000000 --- a/ntru__poly__ascii_8c__incl.map +++ /dev/null @@ -1,9 +0,0 @@ - - - - - - - - - diff --git a/ntru__poly__ascii_8c__incl.md5 b/ntru__poly__ascii_8c__incl.md5 deleted file mode 100644 index b714945..0000000 --- a/ntru__poly__ascii_8c__incl.md5 +++ /dev/null @@ -1 +0,0 @@ -48c92a3995035281292b591ebc928bc1 \ No newline at end of file diff --git a/ntru__poly__ascii_8c__incl.png b/ntru__poly__ascii_8c__incl.png deleted file mode 100644 index 10c75e7..0000000 Binary files a/ntru__poly__ascii_8c__incl.png and /dev/null differ diff --git a/ntru__poly__ascii_8c_source.html b/ntru__poly__ascii_8c_source.html deleted file mode 100644 index 61bdcd2..0000000 --- a/ntru__poly__ascii_8c_source.html +++ /dev/null @@ -1,387 +0,0 @@ - - - - - - -post quantum cryptography: /home/travis/build/hasufell/pqc/src/ntru_poly_ascii.c Source File - - - - - - - - - -
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    ntru_poly_ascii.c
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    1 /*
    -
    2  * Copyright (C) 2014 FH Bielefeld
    -
    3  *
    -
    4  * This file is part of a FH Bielefeld project.
    -
    5  *
    -
    6  * This library is free software; you can redistribute it and/or
    -
    7  * modify it under the terms of the GNU Lesser General Public
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    8  * License as published by the Free Software Foundation; either
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    9  * version 2.1 of the License, or (at your option) any later version.
    -
    10  *
    -
    11  * This library is distributed in the hope that it will be useful,
    -
    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    -
    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    -
    14  * Lesser General Public License for more details.
    -
    15  *
    -
    16  * You should have received a copy of the GNU Lesser General Public
    -
    17  * License along with this library; if not, write to the Free Software
    -
    18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
    -
    19  * MA 02110-1301 USA
    -
    20  */
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    21 
    -
    29 #include "ntru_poly_ascii.h"
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    30 #include "ntru_common.h"
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    31 #include "ntru_mem.h"
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    32 #include "ntru_params.h"
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    33 #include "ntru_poly.h"
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    34 #include "ntru_string.h"
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    35 
    -
    36 #include <glib.h>
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    37 
    -
    38 #include <stdint.h>
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    39 #include <stdlib.h>
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    40 #include <string.h>
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    41 
    -
    42 #include <fmpz_poly.h>
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    43 #include <fmpz.h>
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    44 
    -
    45 
    -
    62 static string *
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    63 get_bin_arr_to_ascii(const char *binary_rep);
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    64 
    -
    65 
    -
    66 /*------------------------------------------------------------------------*/
    -
    67 
    -
    68 static string *
    -
    69 get_bin_arr_to_ascii(const char *binary_rep)
    -
    70 {
    -
    71  size_t int_arr_size = 0;
    -
    72  uint8_t *int_arr = NULL;
    -
    73  uint32_t i = 0;
    -
    74  char *int_string = NULL;
    -
    75  string *result = ntru_malloc(sizeof(*result));
    -
    76 
    -
    77  if (!binary_rep || !*binary_rep)
    -
    78  return NULL;
    -
    79 
    -
    80  int_arr_size = strlen(binary_rep) / ASCII_BITS + 1;
    -
    81  int_arr = ntru_malloc(sizeof(*int_arr) * int_arr_size);
    -
    82 
    -
    83  while (*binary_rep) {
    -
    84  int_arr[i] = 0;
    -
    85 
    -
    86  /* convert one binary integer to real integer */
    -
    87  for (uint32_t j = 0; j < ASCII_BITS && *binary_rep; j++) {
    -
    88  if (*binary_rep == '1')
    -
    89  int_arr[i] = int_arr[i] * 2 + 1;
    -
    90  else if (*binary_rep == '0')
    -
    91  int_arr[i] *= 2;
    -
    92  binary_rep++;
    -
    93  }
    -
    94 
    -
    95  i++; /* amount of real integers */
    -
    96  }
    -
    97 
    -
    98  int_string = ntru_malloc(CHAR_SIZE * (i + 1));
    -
    99 
    -
    100  for (uint32_t j = 0; j < i; j++)
    -
    101  int_string[j] = (char) int_arr[j];
    -
    102 
    -
    103  result->ptr = int_string;
    -
    104  result->len = i;
    -
    105 
    -
    106  free(int_arr);
    -
    107 
    -
    108  return result;
    -
    109 }
    -
    110 
    -
    111 /*------------------------------------------------------------------------*/
    -
    112 
    -
    113 string *
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    114 bin_poly_to_ascii(const fmpz_poly_t poly,
    -
    115  const ntru_params *params)
    -
    116 {
    -
    117  string *result_string = ntru_malloc(sizeof(*result_string));
    -
    118  char *binary_rep = ntru_malloc(CHAR_SIZE * (params->N));
    -
    119  uint32_t i = 0;
    -
    120 
    -
    121  for (i = 0; i < params->N; i++) {
    -
    122  fmpz *coeff = fmpz_poly_get_coeff_ptr(poly, i);
    -
    123 
    -
    124  if (coeff) {
    -
    125  if (!fmpz_cmp_si(coeff, 1))
    -
    126  binary_rep[i] = '1';
    -
    127  else if (!fmpz_cmp_si(coeff, -1))
    -
    128  binary_rep[i] = '0';
    -
    129  } else {
    -
    130  break;
    -
    131  }
    -
    132  }
    -
    133 
    -
    134  result_string->ptr = binary_rep;
    -
    135  result_string->len = i;
    -
    136 
    -
    137  return result_string;
    -
    138 }
    -
    139 
    -
    140 /*------------------------------------------------------------------------*/
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    141 
    -
    142 string *
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    143 bin_poly_arr_to_ascii(const fmpz_poly_t **bin_poly_arr,
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    144  const uint32_t poly_c,
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    145  const ntru_params *params)
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    146 {
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    147  char *binary_rep = NULL;
    -
    148  size_t string_len = 0;
    -
    149  string *ascii_string = NULL;
    -
    150 
    -
    151  /*
    -
    152  * parse the polynomial coefficients into a string
    -
    153  */
    -
    154  binary_rep = ntru_malloc(CHAR_SIZE * (params->N * poly_c + 1));
    -
    155  for (uint32_t i = 0; i < poly_c; i++) {
    -
    156  string *single_poly_string = NULL;
    -
    157 
    -
    158  single_poly_string = bin_poly_to_ascii(*bin_poly_arr[i], params);
    -
    159 
    -
    160  memcpy(binary_rep + string_len,
    -
    161  single_poly_string->ptr,
    -
    162  single_poly_string->len);
    -
    163 
    -
    164  string_len += single_poly_string->len;
    -
    165 
    -
    166  string_delete(single_poly_string);
    -
    167  }
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    168  binary_rep[string_len] = '\0';
    -
    169 
    -
    170  ascii_string = get_bin_arr_to_ascii(binary_rep);
    -
    171 
    -
    172  free(binary_rep);
    -
    173 
    -
    174  return ascii_string;
    -
    175 }
    -
    176 
    -
    177 /*------------------------------------------------------------------------*/
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    178 
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    179 string *
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    180 poly_to_ascii(const fmpz_poly_t poly,
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    185 
    -
    186  for (uint32_t j = 0; j < params->N; j++) {
    -
    187  uint8_t coeff = fmpz_poly_get_coeff_ui(poly, j);
    -
    188  if (coeff == params->q)
    -
    189  string_rep[j] = '\0';
    -
    190  else
    -
    191  string_rep[j] = (char)coeff;
    -
    192  }
    -
    193 
    -
    194  result_string->ptr = string_rep;
    -
    195  result_string->len = params->N;
    -
    196 
    -
    197  return result_string;
    -
    198 }
    -
    199 
    -
    200 /*------------------------------------------------------------------------*/
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    201 
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    -
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    -
    210 
    -
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    -
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    214  string_rep = ntru_malloc(CHAR_SIZE * (params->N * poly_c + 1));
    -
    215  for (uint32_t i = 0; i < poly_c; i++) {
    -
    216  string *poly_str;
    -
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    -
    218  poly_str = poly_to_ascii(*poly_array[i], params);
    -
    219 
    -
    220  memcpy(string_rep + string_len,
    -
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    -
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    -
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    -
    224 
    -
    225  string_delete(poly_str);
    -
    226  }
    -
    227 
    -
    228  result_string->ptr = string_rep;
    -
    229  result_string->len = string_len;
    -
    230 
    -
    231  return result_string;
    -
    232 }
    -
    233 
    -
    234 /*------------------------------------------------------------------------*/
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    235 
    -
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    240  string *result_string = ntru_malloc(sizeof(*result_string));
    -
    241  string *string_rep = NULL;
    -
    242  gchar *base64_string = NULL,
    -
    243  *tmp = NULL;
    -
    244 
    -
    245  string_rep = poly_to_ascii(poly, params);
    -
    246 
    -
    247  tmp = g_base64_encode((const guchar *)string_rep->ptr,
    -
    248  string_rep->len);
    -
    249  base64_string = g_base64_encode((const guchar *)tmp,
    -
    250  strlen(tmp));
    -
    251 
    -
    252  result_string->ptr = base64_string;
    -
    253  result_string->len = strlen(base64_string);
    -
    254 
    -
    255  string_delete(string_rep);
    -
    256  free(tmp);
    -
    257 
    -
    258  return result_string;
    -
    259 }
    -
    260 
    -
    261 /*------------------------------------------------------------------------*/
    -
    262 
    -
    263 string *
    -
    264 poly_arr_to_base64(const fmpz_poly_t **poly_array,
    -
    265  const uint32_t poly_c,
    -
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    -
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    -
    268  string *string_rep;
    -
    269  string *result_string = ntru_malloc(sizeof(*result_string));
    -
    270 
    -
    271  gchar *base64_string = NULL,
    -
    272  *tmp = NULL;
    -
    273 
    -
    274  string_rep = poly_arr_to_ascii(poly_array, poly_c, params);
    -
    275 
    -
    276  tmp = g_base64_encode((const guchar *)string_rep->ptr, string_rep->len);
    -
    277  base64_string = g_base64_encode((const guchar *)tmp,
    -
    278  strlen(tmp));
    -
    279 
    -
    280  result_string->ptr = base64_string;
    -
    281  result_string->len = strlen(base64_string);
    -
    282 
    -
    283  string_delete(string_rep);
    -
    284  free(tmp);
    -
    285 
    -
    286  return result_string;
    -
    287 }
    -
    288 
    -
    289 /*------------------------------------------------------------------------*/
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    ASCII_BITS
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    static string * get_bin_arr_to_ascii(const char *binary_rep)
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    string * poly_to_base64(const fmpz_poly_t poly, const ntru_params *params)
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    string * bin_poly_arr_to_ascii(const fmpz_poly_t **bin_poly_arr, const uint32_t poly_c, const ntru_params *params)
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    Definition: ntru_poly_ascii.c:114
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    void * ntru_malloc(size_t size)
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    string * bin_poly_to_ascii (const fmpz_poly_t poly, const ntru_params *params)
     
    string * bin_poly_arr_to_ascii (const fmpz_poly_t **bin_poly_arr, const uint32_t poly_c, const ntru_params *params)
     
    string * poly_to_ascii (const fmpz_poly_t poly, const ntru_params *params)
     
    string * poly_arr_to_ascii (const fmpz_poly_t **poly_array, const uint32_t poly_c, const ntru_params *params)
     
    string * poly_to_base64 (const fmpz_poly_t poly, const ntru_params *params)
     
    string * poly_arr_to_base64 (const fmpz_poly_t **poly_arr, const uint32_t poly_c, const ntru_params *params)
     
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    Convert an array of binary polynomials back to a real string. The polynomial coefficients represent a binary format of the ascii string with the following mapping:

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    Convert a single binary polynomial back to a real string. The polynomial coefficients represent a binary format of the ascii string with the following mapping:

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    paramsthe NTRU parameters
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    Definition at line 114 of file ntru_poly_ascii.c.

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    string* poly_arr_to_ascii (const fmpz_poly_t ** poly_array,
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    )
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    Convert an array of polynomials back to a real string. The polynomial coefficients are expected to be in the range [0, q-1] and will be casted back to chars without any mapping.

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    poly_cthe amount of polynomials in poly_arr
    paramsthe NTRU parameters
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    Definition at line 264 of file ntru_poly_ascii.c.

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    Convert a single polynom back to a real string which is ascii encoded (full 256 C char spectrum). The polynomial coefficients are expected to be in the range [0, q-1] and will be casted back to chars without any mapping.

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    Definition at line 237 of file ntru_poly_ascii.c.

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    1 /*
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    2  * Copyright (C) 2014 FH Bielefeld
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    3  *
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    4  * This file is part of a FH Bielefeld project.
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    5  *
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    6  * This library is free software; you can redistribute it and/or
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    8  * License as published by the Free Software Foundation; either
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    9  * version 2.1 of the License, or (at your option) any later version.
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    10  *
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    11  * This library is distributed in the hope that it will be useful,
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    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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    14  * Lesser General Public License for more details.
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    15  *
    -
    16  * You should have received a copy of the GNU Lesser General Public
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    17  * License along with this library; if not, write to the Free Software
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    18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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    19  * MA 02110-1301 USA
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    20  */
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    28 #ifndef NTRU_POLY_ASCII_H_
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    29 #define NTRU_POLY_ASCII_H_
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    30 
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    32 #include "ntru_common.h"
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    33 #include "ntru_params.h"
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    34 #include "ntru_string.h"
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    35 
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    36 #include <fmpz_poly.h>
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    37 #include <fmpz.h>
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    38 
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    39 
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    59 string *
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    60 bin_poly_to_ascii(const fmpz_poly_t poly,
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    61  const ntru_params *params);
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    84 bin_poly_arr_to_ascii(const fmpz_poly_t **bin_poly_arr,
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    85  const uint32_t poly_c,
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    86  const ntru_params *params);
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    87 
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    101 string *
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    102 poly_to_ascii(const fmpz_poly_t poly,
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    103  const ntru_params *params);
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    104 
    -
    118 string *
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    119 poly_arr_to_ascii(const fmpz_poly_t **poly_array,
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    120  const uint32_t poly_c,
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    121  const ntru_params *params);
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    122 
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    137 poly_to_base64(const fmpz_poly_t poly,
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    138  const ntru_params *params);
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    155 poly_arr_to_base64(const fmpz_poly_t **poly_arr,
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    156  const uint32_t poly_c,
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    157  const ntru_params *params);
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    158 
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    159 
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    160 #endif /* NTRU_POLY_ASCII_H_ */
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    string * poly_to_base64(const fmpz_poly_t poly, const ntru_params *params)
    Definition: ntru_poly_ascii.c:237
    -
    poly_arr_to_ascii
    string * poly_arr_to_ascii(const fmpz_poly_t **poly_array, const uint32_t poly_c, const ntru_params *params)
    Definition: ntru_poly_ascii.c:203
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    bin_poly_to_ascii
    string * bin_poly_to_ascii(const fmpz_poly_t poly, const ntru_params *params)
    Definition: ntru_poly_ascii.c:114
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    Definition: ntru_params.h:43
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    string * bin_poly_arr_to_ascii(const fmpz_poly_t **bin_poly_arr, const uint32_t poly_c, const ntru_params *params)
    Definition: ntru_poly_ascii.c:143
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    ntru_params.h
    NTRU parameters.
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    poly_arr_to_base64
    string * poly_arr_to_base64(const fmpz_poly_t **poly_arr, const uint32_t poly_c, const ntru_params *params)
    Definition: ntru_poly_ascii.c:264
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    ntru_common.h
    common macros/functions
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    ntru_string.h
    header for ntru_string.c
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    poly_to_ascii
    string * poly_to_ascii(const fmpz_poly_t poly, const ntru_params *params)
    Definition: ntru_poly_ascii.c:180
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    #include "math.h"
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    -Functions

    int get_rnd_int (void)
     
    int get_urnd_int (void)
     
    void ntru_get_rnd_tern_poly_num (fmpz_poly_t poly, const ntru_params *params, uint32_t num_ones, uint32_t num_neg_ones, int(*rnd_int)(void))
     
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    1 /*
    -
    2  * Copyright (C) 2014 FH Bielefeld
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    3  *
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    4  * This file is part of a FH Bielefeld project.
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    5  *
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    14  * Lesser General Public License for more details.
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    33 #include <fmpz_poly.h>
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    34 #include <fcntl.h>
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    35 #include <stdlib.h>
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    -
    39 /*------------------------------------------------------------------------*/
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    41 int
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    42 get_rnd_int(void)
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    43 {
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    45  int rnd_int;
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    -
    47 
    -
    48  while (rnd_len < sizeof(rnd_int)) {
    -
    49  ssize_t result = read(rnd_data, ((char*)&rnd_int) + rnd_len,
    -
    50  sizeof(rnd_int) - rnd_len);
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    51 
    -
    52  if (result < 0)
    -
    53  NTRU_ABORT("Unable to read /dev/random!\n");
    -
    54 
    -
    55  rnd_len += result;
    -
    56  }
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    57 
    -
    58  close(rnd_data);
    -
    59 
    -
    60  return rnd_int;
    -
    61 }
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    62 
    -
    63 /*------------------------------------------------------------------------*/
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    64 
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    65 int
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    66 get_urnd_int(void)
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    67 {
    -
    68  int rnd_data = open("/dev/urandom", O_RDONLY);
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    69  int rnd_int;
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    70  ssize_t result;
    -
    71 
    -
    72  result = read(rnd_data, ((char*)&rnd_int),
    -
    73  sizeof(rnd_int));
    -
    74 
    -
    75  if (result < 0)
    -
    76  NTRU_ABORT("Unable to read /dev/urandom!\n");
    -
    77 
    -
    78  close(rnd_data);
    -
    79 
    -
    80  return rnd_int;
    -
    81 }
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    82 
    -
    83 /*------------------------------------------------------------------------*/
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    84 
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    90  int (*rnd_int)(void))
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    91 {
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    92  if (!poly || ! params)
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    93  NTRU_ABORT_DEBUG("unexpected NULL parameters");
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    94 
    -
    95  fmpz_poly_zero(poly);
    -
    96 
    -
    97  while (num_ones != 0 || num_neg_ones != 0) {
    -
    98  int32_t pos = rnd_int() % params->N;
    -
    99 
    -
    100  if (!fmpz_cmp_si_n(fmpz_poly_get_coeff_ptr(poly, pos), 0)) {
    -
    101  if (num_ones > 0) {
    -
    102  fmpz_poly_set_coeff_si(poly, pos, 1);
    -
    103  num_ones--;
    -
    104  } else if (num_neg_ones > 0) {
    -
    105  fmpz_poly_set_coeff_si(poly, pos, -1);
    -
    106  num_neg_ones--;
    -
    107  }
    -
    108  }
    -
    109  }
    -
    110 }
    -
    111 
    -
    112 /*------------------------------------------------------------------------*/
    -
    ntru_params::N
    uint32_t N
    Definition: ntru_params.h:48
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    int get_urnd_int(void)
    Definition: ntru_rnd.c:66
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    #define NTRU_ABORT_DEBUG(...)
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    Definition: ntru_rnd.c:42
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    Definition: ntru_params.h:43
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    void ntru_get_rnd_tern_poly_num(fmpz_poly_t poly, const ntru_params *params, uint32_t num_ones, uint32_t num_neg_ones, int(*rnd_int)(void))
    Definition: ntru_rnd.c:86
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    int fmpz_cmp_si_n(const fmpz_t f, slong g)
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    int get_rnd_int (void)
     
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    Definition: ntru_rnd.c:86
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    77 #endif /* PUBLIC_NTRU_RND_H_ */
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    Definition: ntru_rnd.c:86
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    Definition: ntru.h:47
    +
    get_urnd_int
    int get_urnd_int(void)
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    get_rnd_int
    int get_rnd_int(void)
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    ntru_get_rnd_tern_poly_num
    void ntru_get_rnd_tern_poly_num(fmpz_poly_t poly, const ntru_params *params, uint32_t num_ones, uint32_t num_neg_ones, int(*rnd_int)(void))
    -Generated on Sun Jun 8 2014 23:33:23 for post quantum cryptography by   +Generated on Mon Jun 9 2014 00:26:38 for post quantum cryptography by   doxygen 1.8.7
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    - - diff --git a/search/functions_a.js b/search/functions_a.js deleted file mode 100644 index 0f707cd..0000000 --- a/search/functions_a.js +++ /dev/null @@ -1,4 +0,0 @@ -var searchData= -[ - ['write_5ffile',['write_file',['../ntru__file_8c.html#a1f8eef5ea12c77ed2491d96864eb0d43',1,'write_file(string const *wstring, char const *const filename): ntru_file.c'],['../ntru__file_8h.html#a1f8eef5ea12c77ed2491d96864eb0d43',1,'write_file(string const *wstring, char const *const filename): ntru_file.c'],['../ntru_8h.html#af2a0fc4dd4109749d8f3100a913cc304',1,'write_file(string const *wstring, char const *const filename): ntru_file.c']]] -]; diff --git a/search/search.js b/search/search.js index e1d3f17..81943e9 100644 --- a/search/search.js +++ b/search/search.js @@ -7,14 +7,13 @@ var indexSectionsWithContent = { - 0: "abcdefgiklnpqrsw", + 0: "degiklnpqrsw", 1: "kns", 2: "deknr", - 3: "abefginprsw", + 3: "eginprsw", 4: "lnpq", 5: "kns", - 6: "acnrs", - 7: "i" + 6: "i" }; var indexSectionNames = @@ -25,8 +24,7 @@ var indexSectionNames = 3: "functions", 4: "variables", 5: "typedefs", - 6: "defines", - 7: "pages" + 6: "pages" }; function convertToId(search) diff --git a/search/typedefs_0.js b/search/typedefs_0.js index 0e89730..15f8ab1 100644 --- a/search/typedefs_0.js +++ b/search/typedefs_0.js @@ -1,4 +1,4 @@ var searchData= [ - ['keypair',['keypair',['../ntru__keypair_8h.html#aacfc9254c7939584924ab9d27ba6f504',1,'keypair(): ntru_keypair.h'],['../keypair_8h.html#aacfc9254c7939584924ab9d27ba6f504',1,'keypair(): keypair.h']]] + ['keypair',['keypair',['../keypair_8h.html#aacfc9254c7939584924ab9d27ba6f504',1,'keypair.h']]] ]; diff --git a/search/typedefs_1.js b/search/typedefs_1.js index ee6f24b..f0b4047 100644 --- a/search/typedefs_1.js +++ b/search/typedefs_1.js @@ -1,4 +1,4 @@ var searchData= [ - ['ntru_5fparams',['ntru_params',['../ntru__params_8h.html#a2f326c88fc033eca78a47ee8d387c592',1,'ntru_params(): ntru_params.h'],['../ntru_8h.html#a2f326c88fc033eca78a47ee8d387c592',1,'ntru_params(): ntru.h']]] + ['ntru_5fparams',['ntru_params',['../ntru_8h.html#a2f326c88fc033eca78a47ee8d387c592',1,'ntru.h']]] ]; diff --git a/search/typedefs_2.js b/search/typedefs_2.js index 9ae8184..34104f4 100644 --- a/search/typedefs_2.js +++ b/search/typedefs_2.js @@ -1,4 +1,4 @@ var searchData= [ - ['string',['string',['../ntru__string_8h.html#a63e2e3ee7db5274c6a3929edfc07c6c9',1,'string(): ntru_string.h'],['../ntru_8h.html#a63e2e3ee7db5274c6a3929edfc07c6c9',1,'string(): ntru.h']]] + ['string',['string',['../ntru_8h.html#a63e2e3ee7db5274c6a3929edfc07c6c9',1,'ntru.h']]] ]; diff --git a/search/variables_2.js b/search/variables_2.js index 3237746..3b3d001 100644 --- a/search/variables_2.js +++ b/search/variables_2.js @@ -3,6 +3,6 @@ var searchData= ['p',['p',['../structntru__params.html#a41b368825e1eb126604e13e8f549ec8f',1,'ntru_params']]], ['priv',['priv',['../structkeypair.html#a9e9805ad001216da53f2c57accb288e1',1,'keypair']]], ['priv_5finv',['priv_inv',['../structkeypair.html#a9e63f1d275b91c9d9716fb4069461799',1,'keypair']]], - ['ptr',['ptr',['../structstring.html#afd608f62303958cea6f1f7afdec1e282',1,'string']]], + ['ptr',['ptr',['../structstring.html#aa1b2f3a2ddd1ed38245b8d4590aadf93',1,'string']]], ['pub',['pub',['../structkeypair.html#afa635c70f233d0b7449b4a17513646c4',1,'keypair']]] ]; diff --git a/structkeypair.html b/structkeypair.html index 46d5afa..1664ceb 100644 --- a/structkeypair.html +++ b/structkeypair.html @@ -70,7 +70,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> - All Data Structures Files Functions Variables Typedefs Macros Pages + All Data Structures Files Functions Variables Typedefs Pages
    @@ -88,7 +88,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
    -

    #include <ntru_keypair.h>

    +

    #include <keypair.h>

    @@ -102,7 +102,7 @@ Data Fields

    Detailed Description

    This struct holds the keypair, both private and public components.

    -

    Definition at line 46 of file ntru_keypair.h.

    +

    Definition at line 49 of file keypair.h.

    Field Documentation

    @@ -115,7 +115,7 @@ Data Fields

    First part of the private key, a random polynom.

    -

    Definition at line 51 of file ntru_keypair.h.

    +

    Definition at line 54 of file keypair.h.

    @@ -130,7 +130,7 @@ Data Fields

    Second part of the private key, the priv polynom inverted.

    -

    Definition at line 56 of file ntru_keypair.h.

    +

    Definition at line 59 of file keypair.h.

    @@ -145,18 +145,17 @@ Data Fields

    The public key, computed as: h = p * (Fq * g) mod q

    -

    Definition at line 61 of file ntru_keypair.h.

    +

    Definition at line 64 of file keypair.h.

    -
    The documentation for this struct was generated from the following files:

    Data Fields

    @@ -102,7 +102,7 @@ Data Fields

    Detailed Description

    NTRU cryptosystem is specified by the following triple.

    -

    Definition at line 43 of file ntru_params.h.

    +

    Definition at line 47 of file ntru.h.

    Field Documentation

    @@ -115,7 +115,7 @@ Data Fields

    maximal degree N - 1 for all polynomials

    -

    Definition at line 48 of file ntru_params.h.

    +

    Definition at line 52 of file ntru.h.

    @@ -130,7 +130,7 @@ Data Fields

    small modulus

    -

    Definition at line 56 of file ntru_params.h.

    +

    Definition at line 60 of file ntru.h.

    @@ -145,18 +145,17 @@ Data Fields

    large modulus

    -

    Definition at line 52 of file ntru_params.h.

    +

    Definition at line 56 of file ntru.h.

    -
    The documentation for this struct was generated from the following files:

    Data Fields

    - - + +

    Data Fields

    char * ptr
     
    char * ptr
     
    size_t len
     

    Detailed Description

    Represents a string.

    -

    Definition at line 41 of file ntru_string.h.

    +

    Definition at line 66 of file ntru.h.

    Field Documentation

    @@ -113,33 +113,32 @@ Data Fields

    Length of the string.

    -

    Definition at line 53 of file ntru_string.h.

    +

    Definition at line 78 of file ntru.h.

    - +
    - +
    char * string::ptrchar* string::ptr

    Pointer to the char array, holding the actual string. THIS IS NOT NULL TERMINATED (at least not necessarily, don't ever assume it).

    -

    Definition at line 49 of file ntru_string.h.

    +

    Definition at line 74 of file ntru.h.

    -
    The documentation for this struct was generated from the following files: