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<p>SHA-1 cryptographic 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/>
<code>#include <inttypes.h></code><br/>
</div><div class="textblock"><div class="dynheader">
Include dependency graph for sha1.h:</div>
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<div class="center"><img src="sha1_8h__incl.png" border="0" usemap="#sha1_8h" alt=""/></div>
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This graph shows which files directly or indirectly include this file:</div>
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<div class="center"><img src="sha1_8h__dep__incl.png" border="0" usemap="#sha1_8hdep" alt=""/></div>
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<p><a href="sha1_8h_source.html">Go to the source code of this file.</a></p>
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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="structsha1__context.html">sha1_context</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">SHA-1 context structure. <a href="structsha1__context.html#details">More...</a><br/></td></tr>
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Macros</h2></td></tr>
<tr class="memitem:a71eaf8aa36e347940b9132e7882b9bf4"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#a71eaf8aa36e347940b9132e7882b9bf4">POLARSSL_ERR_SHA1_FILE_IO_ERROR</a>   -0x0076</td></tr>
<tr class="memdesc:a71eaf8aa36e347940b9132e7882b9bf4"><td class="mdescLeft"> </td><td class="mdescRight">Read/write error in file. <a href="#a71eaf8aa36e347940b9132e7882b9bf4">More...</a><br/></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a6a50e52c911aec6602113502a65eeb51"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#a6a50e52c911aec6602113502a65eeb51">sha1_init</a> (<a class="el" href="structsha1__context.html">sha1_context</a> *ctx)</td></tr>
<tr class="memdesc:a6a50e52c911aec6602113502a65eeb51"><td class="mdescLeft"> </td><td class="mdescRight">Initialize SHA-1 context. <a href="#a6a50e52c911aec6602113502a65eeb51">More...</a><br/></td></tr>
<tr class="separator:a6a50e52c911aec6602113502a65eeb51"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa41c48833d13d4053cd32ff1e5b3ed02"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#aa41c48833d13d4053cd32ff1e5b3ed02">sha1_free</a> (<a class="el" href="structsha1__context.html">sha1_context</a> *ctx)</td></tr>
<tr class="memdesc:aa41c48833d13d4053cd32ff1e5b3ed02"><td class="mdescLeft"> </td><td class="mdescRight">Clear SHA-1 context. <a href="#aa41c48833d13d4053cd32ff1e5b3ed02">More...</a><br/></td></tr>
<tr class="separator:aa41c48833d13d4053cd32ff1e5b3ed02"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1055bb44108c1e8d9692f3e3b8acd568"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#a1055bb44108c1e8d9692f3e3b8acd568">sha1_starts</a> (<a class="el" href="structsha1__context.html">sha1_context</a> *ctx)</td></tr>
<tr class="memdesc:a1055bb44108c1e8d9692f3e3b8acd568"><td class="mdescLeft"> </td><td class="mdescRight">SHA-1 context setup. <a href="#a1055bb44108c1e8d9692f3e3b8acd568">More...</a><br/></td></tr>
<tr class="separator:a1055bb44108c1e8d9692f3e3b8acd568"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3447dcf0d31e3f99c875b4f9773e221a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#a3447dcf0d31e3f99c875b4f9773e221a">sha1_update</a> (<a class="el" href="structsha1__context.html">sha1_context</a> *ctx, const unsigned char *input, size_t ilen)</td></tr>
<tr class="memdesc:a3447dcf0d31e3f99c875b4f9773e221a"><td class="mdescLeft"> </td><td class="mdescRight">SHA-1 process buffer. <a href="#a3447dcf0d31e3f99c875b4f9773e221a">More...</a><br/></td></tr>
<tr class="separator:a3447dcf0d31e3f99c875b4f9773e221a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a83ee41b9375fb1cfaa52a98b86b92c58"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#a83ee41b9375fb1cfaa52a98b86b92c58">sha1_finish</a> (<a class="el" href="structsha1__context.html">sha1_context</a> *ctx, unsigned char output[20])</td></tr>
<tr class="memdesc:a83ee41b9375fb1cfaa52a98b86b92c58"><td class="mdescLeft"> </td><td class="mdescRight">SHA-1 final digest. <a href="#a83ee41b9375fb1cfaa52a98b86b92c58">More...</a><br/></td></tr>
<tr class="separator:a83ee41b9375fb1cfaa52a98b86b92c58"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:afb7bdd09cc2251b77dce37a60c1b2778"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#afb7bdd09cc2251b77dce37a60c1b2778">sha1_process</a> (<a class="el" href="structsha1__context.html">sha1_context</a> *ctx, const unsigned char data[64])</td></tr>
<tr class="separator:afb7bdd09cc2251b77dce37a60c1b2778"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0650fb3d7df7e2bb4b512804b914d5ee"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#a0650fb3d7df7e2bb4b512804b914d5ee">sha1</a> (const unsigned char *input, size_t ilen, unsigned char output[20])</td></tr>
<tr class="memdesc:a0650fb3d7df7e2bb4b512804b914d5ee"><td class="mdescLeft"> </td><td class="mdescRight">Output = SHA-1( input buffer ) <a href="#a0650fb3d7df7e2bb4b512804b914d5ee">More...</a><br/></td></tr>
<tr class="separator:a0650fb3d7df7e2bb4b512804b914d5ee"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2b0a100878886e9145a49172794f7d28"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#a2b0a100878886e9145a49172794f7d28">sha1_file</a> (const char *path, unsigned char output[20])</td></tr>
<tr class="memdesc:a2b0a100878886e9145a49172794f7d28"><td class="mdescLeft"> </td><td class="mdescRight">Output = SHA-1( file contents ) <a href="#a2b0a100878886e9145a49172794f7d28">More...</a><br/></td></tr>
<tr class="separator:a2b0a100878886e9145a49172794f7d28"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a85ce4113c4cf8ed0bc15d747600f3615"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#a85ce4113c4cf8ed0bc15d747600f3615">sha1_hmac_starts</a> (<a class="el" href="structsha1__context.html">sha1_context</a> *ctx, const unsigned char *key, size_t keylen)</td></tr>
<tr class="memdesc:a85ce4113c4cf8ed0bc15d747600f3615"><td class="mdescLeft"> </td><td class="mdescRight">SHA-1 HMAC context setup. <a href="#a85ce4113c4cf8ed0bc15d747600f3615">More...</a><br/></td></tr>
<tr class="separator:a85ce4113c4cf8ed0bc15d747600f3615"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4fbb8e5fa6cc2c64f74b3ea05e820fcc"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#a4fbb8e5fa6cc2c64f74b3ea05e820fcc">sha1_hmac_update</a> (<a class="el" href="structsha1__context.html">sha1_context</a> *ctx, const unsigned char *input, size_t ilen)</td></tr>
<tr class="memdesc:a4fbb8e5fa6cc2c64f74b3ea05e820fcc"><td class="mdescLeft"> </td><td class="mdescRight">SHA-1 HMAC process buffer. <a href="#a4fbb8e5fa6cc2c64f74b3ea05e820fcc">More...</a><br/></td></tr>
<tr class="separator:a4fbb8e5fa6cc2c64f74b3ea05e820fcc"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a38679c6fef6af534896808974a98c884"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#a38679c6fef6af534896808974a98c884">sha1_hmac_finish</a> (<a class="el" href="structsha1__context.html">sha1_context</a> *ctx, unsigned char output[20])</td></tr>
<tr class="memdesc:a38679c6fef6af534896808974a98c884"><td class="mdescLeft"> </td><td class="mdescRight">SHA-1 HMAC final digest. <a href="#a38679c6fef6af534896808974a98c884">More...</a><br/></td></tr>
<tr class="separator:a38679c6fef6af534896808974a98c884"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae69d81f33e1ddb70e8e7b697d908cb74"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#ae69d81f33e1ddb70e8e7b697d908cb74">sha1_hmac_reset</a> (<a class="el" href="structsha1__context.html">sha1_context</a> *ctx)</td></tr>
<tr class="memdesc:ae69d81f33e1ddb70e8e7b697d908cb74"><td class="mdescLeft"> </td><td class="mdescRight">SHA-1 HMAC context reset. <a href="#ae69d81f33e1ddb70e8e7b697d908cb74">More...</a><br/></td></tr>
<tr class="separator:ae69d81f33e1ddb70e8e7b697d908cb74"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a17ef720021c40b248d3ea69fe7373983"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#a17ef720021c40b248d3ea69fe7373983">sha1_hmac</a> (const unsigned char *key, size_t keylen, const unsigned char *input, size_t ilen, unsigned char output[20])</td></tr>
<tr class="memdesc:a17ef720021c40b248d3ea69fe7373983"><td class="mdescLeft"> </td><td class="mdescRight">Output = HMAC-SHA-1( hmac key, input buffer ) <a href="#a17ef720021c40b248d3ea69fe7373983">More...</a><br/></td></tr>
<tr class="separator:a17ef720021c40b248d3ea69fe7373983"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4f74b29e82caff3c6f73b4e13648effb"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="sha1_8h.html#a4f74b29e82caff3c6f73b4e13648effb">sha1_self_test</a> (int verbose)</td></tr>
<tr class="memdesc:a4f74b29e82caff3c6f73b4e13648effb"><td class="mdescLeft"> </td><td class="mdescRight">Checkup routine. <a href="#a4f74b29e82caff3c6f73b4e13648effb">More...</a><br/></td></tr>
<tr class="separator:a4f74b29e82caff3c6f73b4e13648effb"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>SHA-1 cryptographic 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="sha1_8h_source.html">sha1.h</a>.</p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a class="anchor" id="a71eaf8aa36e347940b9132e7882b9bf4"></a>
<div class="memitem">
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<td class="memname">#define POLARSSL_ERR_SHA1_FILE_IO_ERROR   -0x0076</td>
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</div><div class="memdoc">
<p>Read/write error in file. </p>
<p>Definition at line <a class="el" href="sha1_8h_source.html#l00045">45</a> of file <a class="el" href="sha1_8h_source.html">sha1.h</a>.</p>
</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="a0650fb3d7df7e2bb4b512804b914d5ee"></a>
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<div class="memproto">
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<td class="memname">void sha1 </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>[20] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Output = SHA-1( 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>SHA-1 checksum result </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a2b0a100878886e9145a49172794f7d28"></a>
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<td class="memname">int sha1_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>[20] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
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<p>Output = SHA-1( 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>SHA-1 checksum result</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 if successful, or POLARSSL_ERR_SHA1_FILE_IO_ERROR </dd></dl>
</div>
</div>
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<td class="memname">void sha1_finish </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structsha1__context.html">sha1_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>[20] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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<p>SHA-1 final digest. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>SHA-1 context </td></tr>
<tr><td class="paramname">output</td><td>SHA-1 checksum result </td></tr>
</table>
</dd>
</dl>
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<td class="memname">void sha1_free </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structsha1__context.html">sha1_context</a> * </td>
<td class="paramname"><em>ctx</em></td><td>)</td>
<td></td>
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<p>Clear SHA-1 context. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>SHA-1 context to be cleared </td></tr>
</table>
</dd>
</dl>
</div>
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<td class="memname">void sha1_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>[20] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Output = HMAC-SHA-1( 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-SHA-1 result </td></tr>
</table>
</dd>
</dl>
</div>
</div>
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<td class="memname">void sha1_hmac_finish </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structsha1__context.html">sha1_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>[20] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
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<p>SHA-1 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>SHA-1 HMAC checksum result </td></tr>
</table>
</dd>
</dl>
</div>
</div>
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<td class="memname">void sha1_hmac_reset </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structsha1__context.html">sha1_context</a> * </td>
<td class="paramname"><em>ctx</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>SHA-1 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 sha1_hmac_starts </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structsha1__context.html">sha1_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>
</tr>
</table>
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<p>SHA-1 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 sha1_hmac_update </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structsha1__context.html">sha1_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>SHA-1 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>
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<td class="memname">void sha1_init </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structsha1__context.html">sha1_context</a> * </td>
<td class="paramname"><em>ctx</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Initialize SHA-1 context. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>SHA-1 context to be initialized </td></tr>
</table>
</dd>
</dl>
</div>
</div>
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<td class="memname">void sha1_process </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structsha1__context.html">sha1_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>data</em>[64] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
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</div>
</div>
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<td class="memname">int sha1_self_test </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>verbose</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<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 sha1_starts </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structsha1__context.html">sha1_context</a> * </td>
<td class="paramname"><em>ctx</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>SHA-1 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>
<a class="anchor" id="a3447dcf0d31e3f99c875b4f9773e221a"></a>
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<td class="memname">void sha1_update </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structsha1__context.html">sha1_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>SHA-1 process buffer. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>SHA-1 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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