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<p>MD2 message digest algorithm (hash function)
<a href="#details">More...</a></p>
<div class="textblock"><code>#include "<a class="el" href="config_8h_source.html">config.h</a>"</code><br/>
<code>#include <string.h></code><br/>
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Include dependency graph for md2.h:</div>
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Data Structures</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structmd2__context.html">md2_context</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">MD2 context structure. <a href="structmd2__context.html#details">More...</a><br/></td></tr>
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Macros</h2></td></tr>
<tr class="memitem:aaffd197bfef6b96a28efc3631c60ef48"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#aaffd197bfef6b96a28efc3631c60ef48">POLARSSL_ERR_MD2_FILE_IO_ERROR</a>   -0x0070</td></tr>
<tr class="memdesc:aaffd197bfef6b96a28efc3631c60ef48"><td class="mdescLeft"> </td><td class="mdescRight">Read/write error in file. <a href="#aaffd197bfef6b96a28efc3631c60ef48">More...</a><br/></td></tr>
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Functions</h2></td></tr>
<tr class="memitem:a8527bd88370e7db6350cff5631d30e4f"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#a8527bd88370e7db6350cff5631d30e4f">md2_init</a> (<a class="el" href="structmd2__context.html">md2_context</a> *ctx)</td></tr>
<tr class="memdesc:a8527bd88370e7db6350cff5631d30e4f"><td class="mdescLeft"> </td><td class="mdescRight">Initialize MD2 context. <a href="#a8527bd88370e7db6350cff5631d30e4f">More...</a><br/></td></tr>
<tr class="separator:a8527bd88370e7db6350cff5631d30e4f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8b755515be2b18b864228f7a9bb2cc95"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#a8b755515be2b18b864228f7a9bb2cc95">md2_free</a> (<a class="el" href="structmd2__context.html">md2_context</a> *ctx)</td></tr>
<tr class="memdesc:a8b755515be2b18b864228f7a9bb2cc95"><td class="mdescLeft"> </td><td class="mdescRight">Clear MD2 context. <a href="#a8b755515be2b18b864228f7a9bb2cc95">More...</a><br/></td></tr>
<tr class="separator:a8b755515be2b18b864228f7a9bb2cc95"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab6b2d9759ed28556516adab8e3b10d4f"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#ab6b2d9759ed28556516adab8e3b10d4f">md2_starts</a> (<a class="el" href="structmd2__context.html">md2_context</a> *ctx)</td></tr>
<tr class="memdesc:ab6b2d9759ed28556516adab8e3b10d4f"><td class="mdescLeft"> </td><td class="mdescRight">MD2 context setup. <a href="#ab6b2d9759ed28556516adab8e3b10d4f">More...</a><br/></td></tr>
<tr class="separator:ab6b2d9759ed28556516adab8e3b10d4f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0c276d104d2c31328dc540a294d278f8"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#a0c276d104d2c31328dc540a294d278f8">md2_update</a> (<a class="el" href="structmd2__context.html">md2_context</a> *ctx, const unsigned char *input, size_t ilen)</td></tr>
<tr class="memdesc:a0c276d104d2c31328dc540a294d278f8"><td class="mdescLeft"> </td><td class="mdescRight">MD2 process buffer. <a href="#a0c276d104d2c31328dc540a294d278f8">More...</a><br/></td></tr>
<tr class="separator:a0c276d104d2c31328dc540a294d278f8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aaa18fa4e450a0457a05bbb2990a41726"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#aaa18fa4e450a0457a05bbb2990a41726">md2_finish</a> (<a class="el" href="structmd2__context.html">md2_context</a> *ctx, unsigned char output[16])</td></tr>
<tr class="memdesc:aaa18fa4e450a0457a05bbb2990a41726"><td class="mdescLeft"> </td><td class="mdescRight">MD2 final digest. <a href="#aaa18fa4e450a0457a05bbb2990a41726">More...</a><br/></td></tr>
<tr class="separator:aaa18fa4e450a0457a05bbb2990a41726"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a476a548f5c94240c3826eeec9ed7383e"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#a476a548f5c94240c3826eeec9ed7383e">md2</a> (const unsigned char *input, size_t ilen, unsigned char output[16])</td></tr>
<tr class="memdesc:a476a548f5c94240c3826eeec9ed7383e"><td class="mdescLeft"> </td><td class="mdescRight">Output = MD2( input buffer ) <a href="#a476a548f5c94240c3826eeec9ed7383e">More...</a><br/></td></tr>
<tr class="separator:a476a548f5c94240c3826eeec9ed7383e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa84e29f9bad98443b4841ad34345145b"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#aa84e29f9bad98443b4841ad34345145b">md2_file</a> (const char *path, unsigned char output[16])</td></tr>
<tr class="memdesc:aa84e29f9bad98443b4841ad34345145b"><td class="mdescLeft"> </td><td class="mdescRight">Output = MD2( file contents ) <a href="#aa84e29f9bad98443b4841ad34345145b">More...</a><br/></td></tr>
<tr class="separator:aa84e29f9bad98443b4841ad34345145b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad0a24f75cc18ac9c16350e3be4253163"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#ad0a24f75cc18ac9c16350e3be4253163">md2_hmac_starts</a> (<a class="el" href="structmd2__context.html">md2_context</a> *ctx, const unsigned char *key, size_t keylen)</td></tr>
<tr class="memdesc:ad0a24f75cc18ac9c16350e3be4253163"><td class="mdescLeft"> </td><td class="mdescRight">MD2 HMAC context setup. <a href="#ad0a24f75cc18ac9c16350e3be4253163">More...</a><br/></td></tr>
<tr class="separator:ad0a24f75cc18ac9c16350e3be4253163"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa31d5d72006081b60f04c150a7f59e7c"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#aa31d5d72006081b60f04c150a7f59e7c">md2_hmac_update</a> (<a class="el" href="structmd2__context.html">md2_context</a> *ctx, const unsigned char *input, size_t ilen)</td></tr>
<tr class="memdesc:aa31d5d72006081b60f04c150a7f59e7c"><td class="mdescLeft"> </td><td class="mdescRight">MD2 HMAC process buffer. <a href="#aa31d5d72006081b60f04c150a7f59e7c">More...</a><br/></td></tr>
<tr class="separator:aa31d5d72006081b60f04c150a7f59e7c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4bf3a6b10ab516edd0aab1cb4d36fa89"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#a4bf3a6b10ab516edd0aab1cb4d36fa89">md2_hmac_finish</a> (<a class="el" href="structmd2__context.html">md2_context</a> *ctx, unsigned char output[16])</td></tr>
<tr class="memdesc:a4bf3a6b10ab516edd0aab1cb4d36fa89"><td class="mdescLeft"> </td><td class="mdescRight">MD2 HMAC final digest. <a href="#a4bf3a6b10ab516edd0aab1cb4d36fa89">More...</a><br/></td></tr>
<tr class="separator:a4bf3a6b10ab516edd0aab1cb4d36fa89"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2cf0f8c397ae66b528908d9675f8480e"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#a2cf0f8c397ae66b528908d9675f8480e">md2_hmac_reset</a> (<a class="el" href="structmd2__context.html">md2_context</a> *ctx)</td></tr>
<tr class="memdesc:a2cf0f8c397ae66b528908d9675f8480e"><td class="mdescLeft"> </td><td class="mdescRight">MD2 HMAC context reset. <a href="#a2cf0f8c397ae66b528908d9675f8480e">More...</a><br/></td></tr>
<tr class="separator:a2cf0f8c397ae66b528908d9675f8480e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a78e2af60e501496faa2639803bd6a923"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#a78e2af60e501496faa2639803bd6a923">md2_hmac</a> (const unsigned char *key, size_t keylen, const unsigned char *input, size_t ilen, unsigned char output[16])</td></tr>
<tr class="memdesc:a78e2af60e501496faa2639803bd6a923"><td class="mdescLeft"> </td><td class="mdescRight">Output = HMAC-MD2( hmac key, input buffer ) <a href="#a78e2af60e501496faa2639803bd6a923">More...</a><br/></td></tr>
<tr class="separator:a78e2af60e501496faa2639803bd6a923"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3ad2266fc4a1b7837eade0b722979c37"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#a3ad2266fc4a1b7837eade0b722979c37">md2_self_test</a> (int verbose)</td></tr>
<tr class="memdesc:a3ad2266fc4a1b7837eade0b722979c37"><td class="mdescLeft"> </td><td class="mdescRight">Checkup routine. <a href="#a3ad2266fc4a1b7837eade0b722979c37">More...</a><br/></td></tr>
<tr class="separator:a3ad2266fc4a1b7837eade0b722979c37"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a82456d0871717a352e22dad21cdc7031"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="md2_8h.html#a82456d0871717a352e22dad21cdc7031">md2_process</a> (<a class="el" href="structmd2__context.html">md2_context</a> *ctx)</td></tr>
<tr class="separator:a82456d0871717a352e22dad21cdc7031"><td class="memSeparator" colspan="2"> </td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>MD2 message digest algorithm (hash function) </p>
<p>Copyright (C) 2006-2014, Brainspark B.V.</p>
<p>This file is part of PolarSSL (<a href="http://www.polarssl.org">http://www.polarssl.org</a>) Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org></p>
<p>All rights reserved.</p>
<p>This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.</p>
<p>This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.</p>
<p>You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. </p>
<p>Definition in file <a class="el" href="md2_8h_source.html">md2.h</a>.</p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a class="anchor" id="aaffd197bfef6b96a28efc3631c60ef48"></a>
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<td class="memname">#define POLARSSL_ERR_MD2_FILE_IO_ERROR   -0x0070</td>
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<p>Read/write error in file. </p>
<p>Definition at line <a class="el" href="md2_8h_source.html#l00038">38</a> of file <a class="el" href="md2_8h_source.html">md2.h</a>.</p>
</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="a476a548f5c94240c3826eeec9ed7383e"></a>
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<td class="memname">void md2 </td>
<td>(</td>
<td class="paramtype">const unsigned char * </td>
<td class="paramname"><em>input</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>ilen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char </td>
<td class="paramname"><em>output</em>[16] </td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<p>Output = MD2( input buffer ) </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">input</td><td>buffer holding the data </td></tr>
<tr><td class="paramname">ilen</td><td>length of the input data </td></tr>
<tr><td class="paramname">output</td><td>MD2 checksum result </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="aa84e29f9bad98443b4841ad34345145b"></a>
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<td class="memname">int md2_file </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>path</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char </td>
<td class="paramname"><em>output</em>[16] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Output = MD2( file contents ) </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">path</td><td>input file name </td></tr>
<tr><td class="paramname">output</td><td>MD2 checksum result</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 if successful, or POLARSSL_ERR_MD2_FILE_IO_ERROR </dd></dl>
</div>
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<td class="memname">void md2_finish </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structmd2__context.html">md2_context</a> * </td>
<td class="paramname"><em>ctx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char </td>
<td class="paramname"><em>output</em>[16] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>MD2 final digest. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>MD2 context </td></tr>
<tr><td class="paramname">output</td><td>MD2 checksum result </td></tr>
</table>
</dd>
</dl>
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<td class="memname">void md2_free </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structmd2__context.html">md2_context</a> * </td>
<td class="paramname"><em>ctx</em></td><td>)</td>
<td></td>
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<p>Clear MD2 context. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>MD2 context to be cleared </td></tr>
</table>
</dd>
</dl>
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<td class="memname">void md2_hmac </td>
<td>(</td>
<td class="paramtype">const unsigned char * </td>
<td class="paramname"><em>key</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>keylen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const unsigned char * </td>
<td class="paramname"><em>input</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>ilen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char </td>
<td class="paramname"><em>output</em>[16] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
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<p>Output = HMAC-MD2( hmac key, input buffer ) </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">key</td><td>HMAC secret key </td></tr>
<tr><td class="paramname">keylen</td><td>length of the HMAC key </td></tr>
<tr><td class="paramname">input</td><td>buffer holding the data </td></tr>
<tr><td class="paramname">ilen</td><td>length of the input data </td></tr>
<tr><td class="paramname">output</td><td>HMAC-MD2 result </td></tr>
</table>
</dd>
</dl>
</div>
</div>
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<td class="memname">void md2_hmac_finish </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structmd2__context.html">md2_context</a> * </td>
<td class="paramname"><em>ctx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char </td>
<td class="paramname"><em>output</em>[16] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>MD2 HMAC final digest. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>HMAC context </td></tr>
<tr><td class="paramname">output</td><td>MD2 HMAC checksum result </td></tr>
</table>
</dd>
</dl>
</div>
</div>
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<td class="memname">void md2_hmac_reset </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structmd2__context.html">md2_context</a> * </td>
<td class="paramname"><em>ctx</em></td><td>)</td>
<td></td>
</tr>
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</div><div class="memdoc">
<p>MD2 HMAC context reset. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>HMAC context to be reset </td></tr>
</table>
</dd>
</dl>
</div>
</div>
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<td class="memname">void md2_hmac_starts </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structmd2__context.html">md2_context</a> * </td>
<td class="paramname"><em>ctx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const unsigned char * </td>
<td class="paramname"><em>key</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>keylen</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>MD2 HMAC context setup. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>HMAC context to be initialized </td></tr>
<tr><td class="paramname">key</td><td>HMAC secret key </td></tr>
<tr><td class="paramname">keylen</td><td>length of the HMAC key </td></tr>
</table>
</dd>
</dl>
</div>
</div>
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<td class="memname">void md2_hmac_update </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structmd2__context.html">md2_context</a> * </td>
<td class="paramname"><em>ctx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const unsigned char * </td>
<td class="paramname"><em>input</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>ilen</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>MD2 HMAC process buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>HMAC context </td></tr>
<tr><td class="paramname">input</td><td>buffer holding the data </td></tr>
<tr><td class="paramname">ilen</td><td>length of the input data </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a8527bd88370e7db6350cff5631d30e4f"></a>
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<td class="memname">void md2_init </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structmd2__context.html">md2_context</a> * </td>
<td class="paramname"><em>ctx</em></td><td>)</td>
<td></td>
</tr>
</table>
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<p>Initialize MD2 context. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>MD2 context to be initialized </td></tr>
</table>
</dd>
</dl>
</div>
</div>
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<td class="memname">void md2_process </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structmd2__context.html">md2_context</a> * </td>
<td class="paramname"><em>ctx</em></td><td>)</td>
<td></td>
</tr>
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</div>
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<td class="memname">int md2_self_test </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>verbose</em></td><td>)</td>
<td></td>
</tr>
</table>
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<p>Checkup routine. </p>
<dl class="section return"><dt>Returns</dt><dd>0 if successful, or 1 if the test failed </dd></dl>
</div>
</div>
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<td class="memname">void md2_starts </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structmd2__context.html">md2_context</a> * </td>
<td class="paramname"><em>ctx</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>MD2 context setup. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>context to be initialized </td></tr>
</table>
</dd>
</dl>
</div>
</div>
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<td class="memname">void md2_update </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structmd2__context.html">md2_context</a> * </td>
<td class="paramname"><em>ctx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const unsigned char * </td>
<td class="paramname"><em>input</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>ilen</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>MD2 process buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>MD2 context </td></tr>
<tr><td class="paramname">input</td><td>buffer holding the data </td></tr>
<tr><td class="paramname">ilen</td><td>length of the input data </td></tr>
</table>
</dd>
</dl>
</div>
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