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<title>post quantum cryptography: /home/travis/build/hasufell/pqc/src/ntru_encrypt.h File Reference</title>
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<div id="projectname">post quantum cryptography
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<div id="projectbrief">Highly optimized implementation of the NTRUEncrypt algorithm</div>
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<div class="title">/home/travis/build/hasufell/pqc/src/ntru_encrypt.h File Reference</div> </div>
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<p>header for encrypt.c
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<a href="#details">More...</a></p>
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<div class="textblock"><code>#include "<a class="el" href="ntru__params_8h_source.html">ntru_params.h</a>"</code><br/>
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<code>#include "<a class="el" href="ntru__poly_8h_source.html">ntru_poly.h</a>"</code><br/>
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<code>#include "<a class="el" href="ntru__string_8h_source.html">ntru_string.h</a>"</code><br/>
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<code>#include <fmpz_poly.h></code><br/>
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<code>#include <fmpz.h></code><br/>
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</div><div class="textblock"><div class="dynheader">
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Include dependency graph for ntru_encrypt.h:</div>
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<div class="dyncontent">
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<div class="center"><img src="ntru__encrypt_8h__incl.png" border="0" usemap="#_2home_2travis_2build_2hasufell_2pqc_2src_2ntru__encrypt_8h" alt=""/></div>
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<map name="_2home_2travis_2build_2hasufell_2pqc_2src_2ntru__encrypt_8h" id="_2home_2travis_2build_2hasufell_2pqc_2src_2ntru__encrypt_8h">
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<p><a href="ntru__encrypt_8h_source.html">Go to the source code of this file.</a></p>
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<table class="memberdecls">
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<tr><td colspan="2"><h2><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="ntru__encrypt_8h.html#a9063450af4b523d202c7628dbac70e68">ntru_encrypt_poly</a> (const fmpz_poly_t msg_tern, const fmpz_poly_t pub_key, const fmpz_poly_t rnd, fmpz_poly_t out, const <a class="el" href="structntru__params.html">ntru_params</a> *params)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="structstring.html">string</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="ntru__encrypt_8h.html#a0bb47c0fa0dd4a4cfa0c0f7a722fd554">ntru_encrypt_string</a> (const <a class="el" href="structstring.html">string</a> *msg, const fmpz_poly_t pub_key, const fmpz_poly_t rnd, const <a class="el" href="structntru__params.html">ntru_params</a> *params)</td></tr>
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</table>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
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<div class="textblock"><p>header for encrypt.c </p>
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<p>Header for the internal API of <a class="el" href="ntru__encrypt_8c.html" title="NTRU encryption.">ntru_encrypt.c</a>. </p>
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<p>Definition in file <a class="el" href="ntru__encrypt_8h_source.html">ntru_encrypt.h</a>.</p>
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</div><hr/><h2>Function Documentation</h2>
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<a class="anchor" id="a9063450af4b523d202c7628dbac70e68"></a><!-- doxytag: member="ntru_encrypt.h::ntru_encrypt_poly" ref="a9063450af4b523d202c7628dbac70e68" args="(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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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void <a class="el" href="ntru__encrypt_8h.html#a9063450af4b523d202c7628dbac70e68">ntru_encrypt_poly</a> </td>
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<td>(</td>
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<td class="paramtype">const fmpz_poly_t </td>
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<td class="paramname"><em>msg_tern</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const fmpz_poly_t </td>
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<td class="paramname"><em>pub_key</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const fmpz_poly_t </td>
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<td class="paramname"><em>rnd</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">fmpz_poly_t </td>
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<td class="paramname"><em>out</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const <a class="el" href="structntru__params.html">ntru_params</a> * </td>
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<td class="paramname"><em>params</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>encrypt the msg, using the math: e = (h ∗ r) + m (mod q)</p>
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<p>e = the encrypted poly</p>
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<p>h = the public key</p>
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<p>r = the random poly</p>
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<p>m = the message poly</p>
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<p>q = large mod</p>
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<dl class="params"><dt><b>Parameters:</b></dt><dd>
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<table class="params">
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<tr><td class="paramname">msg_tern</td><td>the message to encrypt, in ternary format </td></tr>
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<tr><td class="paramname">pub_key</td><td>the public key </td></tr>
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<tr><td class="paramname">rnd</td><td>the random poly (should have relatively small coefficients, but not restricted to {-1, 0, 1}) </td></tr>
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<tr><td class="paramname">out</td><td>the output poly which is in the range {0, q-1} (not ternary!) [out] </td></tr>
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<tr><td class="paramname">params</td><td><a class="el" href="structntru__params.html">ntru_params</a> the ntru context </td></tr>
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</table>
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</dd>
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</dl>
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<p>Definition at line <a class="el" href="ntru__encrypt_8c_source.html#l00046">46</a> of file <a class="el" href="ntru__encrypt_8c_source.html">ntru_encrypt.c</a>.</p>
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</div>
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</div>
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<a class="anchor" id="a0bb47c0fa0dd4a4cfa0c0f7a722fd554"></a><!-- doxytag: member="ntru_encrypt.h::ntru_encrypt_string" ref="a0bb47c0fa0dd4a4cfa0c0f7a722fd554" args="(const string *msg, const fmpz_poly_t pub_key, const fmpz_poly_t rnd, const ntru_params *params)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname"><a class="el" href="structstring.html">string</a>* <a class="el" href="encrypt_8h.html#a0bb47c0fa0dd4a4cfa0c0f7a722fd554">ntru_encrypt_string</a> </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="structstring.html">string</a> * </td>
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<td class="paramname"><em>msg</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const fmpz_poly_t </td>
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<td class="paramname"><em>pub_key</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const fmpz_poly_t </td>
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<td class="paramname"><em>rnd</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const <a class="el" href="structntru__params.html">ntru_params</a> * </td>
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<td class="paramname"><em>params</em> </td>
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</tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</table>
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</div>
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<div class="memdoc">
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<p>Encrypt a message in the form of a null-terminated char array and return a string.</p>
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<dl class="params"><dt><b>Parameters:</b></dt><dd>
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<table class="params">
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<tr><td class="paramname">msg</td><td>the message </td></tr>
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<tr><td class="paramname">pub_key</td><td>the public key </td></tr>
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<tr><td class="paramname">rnd</td><td>the random poly (should have relatively small coefficients, but not restricted to {-1, 0, 1}) </td></tr>
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<tr><td class="paramname">params</td><td><a class="el" href="structntru__params.html">ntru_params</a> the ntru context </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="return"><dt><b>Returns:</b></dt><dd>the newly allocated encrypted string </dd></dl>
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<p>Definition at line <a class="el" href="ntru__encrypt_8c_source.html#l00074">74</a> of file <a class="el" href="ntru__encrypt_8c_source.html">ntru_encrypt.c</a>.</p>
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