Commit Graph

69 Commits

Author SHA1 Message Date
Malte
a706a23319 RAND: corected spelling 2014-05-12 20:32:34 +02:00
Malte
8f9acfdb9d RAND: changed from make_big_int() to get_random_bigint() 2014-05-12 20:32:34 +02:00
Malte
2e589f4be7 RAND: removed some doxycomment 2014-05-12 20:32:34 +02:00
Malte
f459f09e57 RAND: changed from make_small_int() to get_random_ternary() 2014-05-12 20:32:34 +02:00
Malte
3fc925c396 RAND: removed camelCase
changed from randomDataLen to random_DataLen
2014-05-12 20:32:34 +02:00
hasufell
3109d2aec7 BUILD: remove obsolete object 2014-05-12 20:32:34 +02:00
hasufell
456dff26e0 BUILD: remove non-existing header from build 2014-05-12 20:32:34 +02:00
hasufell
f01210e1f2 BUILD: add missing include 2014-05-12 20:32:34 +02:00
23573d07c8 DOC: fix doxygen comment in pb_mod2_to_modq() 2014-05-12 20:32:34 +02:00
9520003db1 BUILD: ignore -Wunused-function... this is a library 2014-05-12 20:32:34 +02:00
9ddf9709e2 POLY: add pb_mod2_to_modq()
This should make pb_inverse_poly_q() a bit more readable.
TODO: make the algorithm more descriptive in general.
2014-05-12 20:32:34 +02:00
d9584b2e17 POLY: introduce delete_polynom_multi()
Just a wrapper around delete_polynom() to handle multiple args.
Must be called with NULL as last argument!
2014-05-12 20:32:34 +02:00
476379b675 POLY: use our MACROS for error handling
All mp_* and pb_* functions that return an error code
should only be called via a MACRO which handles the error.
2014-05-12 20:32:34 +02:00
a4603877f9 BUILD: update Makefile for mem.o 2014-05-12 20:32:34 +02:00
01c301afdd MEM: introduce our own ntru_malloc() function
Use this instead of malloc().
2014-05-12 20:32:34 +02:00
Malte
cb69ea8689 RAND: changed the function declaration to fit the the given needs better. 2014-05-12 20:32:34 +02:00
Malte
4df4a37f9a RAND: added the missing function declaration and comments.
static mp_int *make_big_int(mp_int *upper_bound, mp_int *lower_bound,
        mp_digit randim_int)
static int check_polynom(pb_poly *polynom)
needs to be filled with code.
2014-05-12 20:32:34 +02:00
Malte
d871a9104f RAND: fixed some unnecessary import 2014-05-12 20:32:34 +02:00
Malte
1e586c178c rand: added some missing void parameter 2014-05-12 20:32:34 +02:00
Malte
626e2fc27a rand: added a nessary but missing comment on the big int min/max 2014-05-12 20:32:34 +02:00
Malte
0bdddc12e7 rand: Refactoring finished
now there are only 4 static functions left:
static mp_digit read_int_dev_random();
static mp_digit read_int_dev_urandom();
static mp_digit make_small_int(mp_digit random_int, int* sign);
static mp_digit make_big_int(mp_digit random_int, int* sign);
Every function is used twice.
the next goal to copy free code is to make a single function
with function pointer out of these 4:
pb_poly *ntru_get_urnd_poly_small(ntru_context *ctx);
pb_poly *ntru_get_rnd_poly_small(ntru_context *ctx);
pb_poly *ntru_get_urnd_poly_big(ntru_context *ctx);
pb_poly *ntru_get_rnd_poly_big(ntru_context *ctx);
But this need to be checkt by a other group member
2014-05-12 20:32:34 +02:00
Malte
21022c9ff8 rand: extractet some double code into new functions
this is the first step, in the next one i a going to remove
static mp_digit get_urnd_int_small(int *sign);
static mp_digit get_rnd_int_small(int *sign);
static mp_digit get_urnd_int_big(int *sign);
static mp_digit get_rnd_int_big(int *sign);

RAND: merged a conflict
2014-05-12 20:32:14 +02:00
60dbab44f5 POLY: fix syntax error within comment
RAND: merged conflict
2014-05-12 20:29:59 +02:00
Malte
90a01a03ec rand: getting small and big polynoms is working
pb_poly *ntru_get_urnd_poly_big(ntru_context *ctx)
pb_poly *ntru_get_rnd_poly_big(ntru_context *ctx)
are written but the testing isen working and
i think it is a bad idea to not use function poniters
at the moment we have about 4 functions that do all the same thing
and differ only in the subfunction call.
But at the moment i cat decide of we shold use
function pinter

RAND: merged conflict
2014-05-12 20:28:22 +02:00
99ebda181a POLY: fix pb_inverse_poly_q()
Should be correct now. Had to add get_degree(), because
pb_clamp() in conjunction with pb_cmp() does not give
expected results, see https://github.com/libtom/libtompoly/issues/3
...so don't use it.
2014-05-12 20:17:42 +02:00
f98be67dd3 BUILD: fix possible linker errors 2014-05-12 20:17:42 +02:00
85c48647f5 POLY: cleanup pb_inverse_poly_q()
Also avoid side effects.
2014-05-12 20:17:42 +02:00
6990193dcd POLY: cleanup pb_starmultiply()
* avoid side effects
* use MP_DIV instead of MP_MOD
* move mp_modulus initialization to outer scope
2014-05-12 20:17:42 +02:00
01785678f0 DOC: fix doxygen comment in delete_polynom() 2014-05-12 20:17:42 +02:00
ed1fb0f0a9 POLY: add erase_polynom() function 2014-05-12 20:17:42 +02:00
f8b1649279 POLY: use mp_neg() instead of directly modifying struct 2014-05-12 20:17:42 +02:00
5c85862d12 POLY: improve error handling
Use MP_ADD, MP_MUL, PB_ADD, PB_MUL etc instead of the mp_add,...
functions to make use of error handling.
2014-05-12 20:17:42 +02:00
85ba70a9c5 POLY: first try of inverting polynomials 2014-05-12 20:17:42 +02:00
3184e9093f POLY: rm unnecessary cast 2014-05-12 20:17:42 +02:00
3e6345cd47 POLY: fix typo 2014-05-12 20:17:42 +02:00
739feea0fe BUILD: fix linker errors when playing in main.c 2014-05-12 20:17:42 +02:00
c4f6ad4504 POLY: fix error messages 2014-05-12 20:17:42 +02:00
2d2ccfbf3f POLY: first try of pb_starmultiply() 2014-05-12 20:17:42 +02:00
0d179a0e7d POLY: don't clamp polyonmial in build_polynom()
Otherwise we might hit problems when using this as an
out-polynom in a arithmetic functions. The caller can clamp
it himself, if he needs so.
2014-05-12 20:17:42 +02:00
f8cac1553f ALL: set context members to unsigned int 2014-05-12 20:17:42 +02:00
fc4ee3b70b POLY: add build_polynom() method
We can build a polynom via an array of integers or just an empty
one, so that it is initialized and properly allocated.
2014-05-12 20:17:42 +02:00
be28e18cfb DOC: fix typo 2014-05-12 20:17:42 +02:00
66da54b3a3 BUILD: ignore -Wunused-parameter
Can happen in callback functions and so forth.
2014-05-12 20:17:42 +02:00
417ce9c0f2 RAND: use unsigned long instead of mp_digit
if we use mp_set_int() instead of mp_set(), then we can use
full unsigned long integers instead of single digits. This
seems a lot safer, especially for future versions of the
random algorithm.

RAND: merged a conflict
2014-05-12 20:16:25 +02:00
0470a5fa6e POLY: use size_t 2014-05-12 20:13:22 +02:00
22f713fa98 DOC: improve memory handling instructions 2014-05-12 20:13:22 +02:00
Malte
04d5d6d38f rand:ntru_get_rnd_poly_small: written a function to generate a random polynom
like get_urnd_int_small but with the random source from /dev/random
instead of /dev/urandom
2014-05-12 20:13:22 +02:00
Malte
71b8f4cbeb Added static mp_digit get_rnd_int_small(int *sign)
but it takes about ~40minutes to generate a x^500
polynom with /dev/random.
2014-05-12 20:13:22 +02:00
3902209626
update .gitignore 2014-04-15 14:27:06 +02:00
cafc977c64
DOC: improve memory management documentation 2014-04-15 14:23:27 +02:00