297 lines
16 KiB
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297 lines
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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">ntru_ascii_poly.c File Reference</div> </div>
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<p>ascii to polynomials
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<a href="#details">More...</a></p>
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<div class="textblock"><code>#include "<a class="el" href="ntru__ascii__poly_8h_source.html">ntru_ascii_poly.h</a>"</code><br />
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<code>#include "<a class="el" href="ntru__common_8h_source.html">ntru_common.h</a>"</code><br />
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<code>#include "<a class="el" href="ntru__mem_8h_source.html">ntru_mem.h</a>"</code><br />
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<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 <glib.h></code><br />
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<code>#include <stdint.h></code><br />
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<code>#include <stdlib.h></code><br />
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<code>#include <string.h></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_ascii_poly.c:</div>
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<div class="dyncontent">
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<div class="center"><img src="ntru__ascii__poly_8c__incl.png" border="0" usemap="#_2home_2travis_2build_2hasufell_2pqc_2src_2ntru__ascii__poly_8c" alt=""/></div>
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<map name="_2home_2travis_2build_2hasufell_2pqc_2src_2ntru__ascii__poly_8c" id="_2home_2travis_2build_2hasufell_2pqc_2src_2ntru__ascii__poly_8c">
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<area shape="rect" id="node3" href="ntru__ascii__poly_8h.html" title="header for ntru_ascii_poly.c " alt="" coords="276,117,396,147"/><area shape="rect" id="node5" href="ntru__common_8h.html" title="common macros/functions " alt="" coords="70,195,182,224"/><area shape="rect" id="node9" href="ntru__string_8h.html" title="header for ntru_string.c " alt="" coords="291,195,384,224"/><area shape="rect" id="node12" href="ntru__params_8h.html" title="NTRU parameters. " alt="" coords="526,195,630,224"/><area shape="rect" id="node21" href="ntru__mem_8h.html" title="header for ntru_mem.c " alt="" coords="30,117,120,147"/><area shape="rect" id="node25" href="ntru__poly_8h.html" title="header for ntru_poly.c " alt="" coords="660,117,746,147"/><area shape="rect" id="node27" href="ntru__err_8h.html" title="error handling " alt="" coords="947,195,1024,224"/></map>
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</div>
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</div>
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<p><a href="ntru__ascii__poly_8c_source.html">Go to the source code of this file.</a></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:a2d2f760b6a98bd87248c1d3e120a665b"><td class="memItemLeft" align="right" valign="top">static char * </td><td class="memItemRight" valign="bottom"><a class="el" href="ntru__ascii__poly_8c.html#a2d2f760b6a98bd87248c1d3e120a665b">get_int_to_bin_str</a> (uint8_t value)</td></tr>
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<tr class="separator:a2d2f760b6a98bd87248c1d3e120a665b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aa5d0d4abdb2ce837a0a3b6e478c8f1a9"><td class="memItemLeft" align="right" valign="top">fmpz_poly_t * </td><td class="memItemRight" valign="bottom"><a class="el" href="ntru__ascii__poly_8c.html#aa5d0d4abdb2ce837a0a3b6e478c8f1a9">ascii_bin_to_bin_poly</a> (const char *to_poly, const <a class="el" href="structntru__params.html">ntru_params</a> *params)</td></tr>
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<tr class="separator:aa5d0d4abdb2ce837a0a3b6e478c8f1a9"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a3237071bca2489c3b2efd46e674e0805"><td class="memItemLeft" align="right" valign="top">fmpz_poly_t ** </td><td class="memItemRight" valign="bottom"><a class="el" href="ntru__ascii__poly_8c.html#a3237071bca2489c3b2efd46e674e0805">ascii_to_bin_poly_arr</a> (const <a class="el" href="structstring.html">string</a> *to_poly, const <a class="el" href="structntru__params.html">ntru_params</a> *params)</td></tr>
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<tr class="separator:a3237071bca2489c3b2efd46e674e0805"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a8460cd27ad4562f560bb304609a3e06d"><td class="memItemLeft" align="right" valign="top">fmpz_poly_t ** </td><td class="memItemRight" valign="bottom"><a class="el" href="ntru__ascii__poly_8c.html#a8460cd27ad4562f560bb304609a3e06d">base64_to_poly_arr</a> (const <a class="el" href="structstring.html">string</a> *to_poly, const <a class="el" href="structntru__params.html">ntru_params</a> *params)</td></tr>
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<tr class="separator:a8460cd27ad4562f560bb304609a3e06d"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>ascii to polynomials </p>
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<p>This file allows to convert ascii strings, including base64 encoded ones, to polynomials. </p>
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<p>Definition in file <a class="el" href="ntru__ascii__poly_8c_source.html">ntru_ascii_poly.c</a>.</p>
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</div><h2 class="groupheader">Function Documentation</h2>
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<a class="anchor" id="aa5d0d4abdb2ce837a0a3b6e478c8f1a9"></a>
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<td class="memname">fmpz_poly_t* ascii_bin_to_bin_poly </td>
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<td>(</td>
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<td class="paramtype">const char * </td>
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<td class="paramname"><em>to_poly</em>, </td>
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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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</div><div class="memdoc">
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<p>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:</p>
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<p>1 => 1</p>
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<p>0 => -1</p>
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<p>If the polynomial is of degree less than N -1, then it will be filled with trailing 2's for later use in <a class="el" href="ntru__poly__ascii_8c.html#a0d86ab2dede39b332d4149e16b2046b8">bin_poly_to_ascii()</a>.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">to_poly</td><td>the string to get into binary polynomial format </td></tr>
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<tr><td class="paramname">params</td><td>the NTRUEncrypt context </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>newly allocated array of binary polynomials </dd></dl>
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<p>Definition at line <a class="el" href="ntru__ascii__poly_8c_source.html#l00081">81</a> of file <a class="el" href="ntru__ascii__poly_8c_source.html">ntru_ascii_poly.c</a>.</p>
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<a class="anchor" id="a3237071bca2489c3b2efd46e674e0805"></a>
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<td class="memname">fmpz_poly_t** ascii_to_bin_poly_arr </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>to_poly</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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</div><div class="memdoc">
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<p>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:</p>
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<p>1 => 1</p>
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<p>0 => -1</p>
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<p>If the last polynomial is of degree less than N -1, then it will be filled with trailing 2's for later use in <a class="el" href="ntru__poly__ascii_8c.html#ab9464c96c3ebec6ee716c604fdc4ad21">bin_poly_arr_to_ascii()</a>.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">to_poly</td><td>the string to get into binary polynomial format </td></tr>
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<tr><td class="paramname">params</td><td>the NTRUEncrypt context </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>newly allocated array of binary polynomials </dd></dl>
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<p>Definition at line <a class="el" href="ntru__ascii__poly_8c_source.html#l00101">101</a> of file <a class="el" href="ntru__ascii__poly_8c_source.html">ntru_ascii_poly.c</a>.</p>
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<a class="anchor" id="a8460cd27ad4562f560bb304609a3e06d"></a>
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<td class="memname">fmpz_poly_t** base64_to_poly_arr </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>to_poly</em>, </td>
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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><div class="memdoc">
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<p>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.</p>
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<p>If the last polynomial is of degree less than N -1, then it will be filled with trailing q's for later user in <a class="el" href="ntru__poly__ascii_8c.html#a0dc14698073df2e46e6540cbff870fc7">poly_arr_to_base64()</a>.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">to_poly</td><td>the 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) </td></tr>
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<tr><td class="paramname">params</td><td>the NTRUEncrypt context </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>newly allocated array of polynomials </dd></dl>
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<p>Definition at line <a class="el" href="ntru__ascii__poly_8c_source.html#l00146">146</a> of file <a class="el" href="ntru__ascii__poly_8c_source.html">ntru_ascii_poly.c</a>.</p>
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<td class="memname">static char * get_int_to_bin_str </td>
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<td>(</td>
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<td class="paramtype">uint8_t </td>
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<td class="paramname"><em>value</em></td><td>)</td>
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<td></td>
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<span class="mlabels"><span class="mlabel">static</span></span> </td>
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<p>Convert an integer to it's binary representation as a string and return it.</p>
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<p>As in: 90 => "10110101"</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">value</td><td>the integer to convert </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>the binary representation as a newly allocated string </dd></dl>
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<p>Definition at line <a class="el" href="ntru__ascii__poly_8c_source.html#l00062">62</a> of file <a class="el" href="ntru__ascii__poly_8c_source.html">ntru_ascii_poly.c</a>.</p>
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