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<div class="title">polarssl/des.h File Reference</div> </div>
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<p><a href="des_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="nested-classes"></a>
Classes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structdes__context.html">des_context</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">DES context structure. <a href="structdes__context.html#details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structdes3__context.html">des3_context</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Triple-DES context structure. <a href="structdes3__context.html#details">More...</a><br/></td></tr>
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Defines</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a89730e026cc6082480f070985e91e8aa"></a><!-- doxytag: member="des.h::DES_ENCRYPT" ref="a89730e026cc6082480f070985e91e8aa" args="" -->
#define </td><td class="memItemRight" valign="bottom"><b>DES_ENCRYPT</b>   1</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7ca3b464dc9e6cabf82f636101b6e133"></a><!-- doxytag: member="des.h::DES_DECRYPT" ref="a7ca3b464dc9e6cabf82f636101b6e133" args="" -->
#define </td><td class="memItemRight" valign="bottom"><b>DES_DECRYPT</b>   0</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="abd97773a4916e7ba50ad66dc77719bac"></a><!-- doxytag: member="des.h::POLARSSL_ERR_DES_INVALID_INPUT_LENGTH" ref="abd97773a4916e7ba50ad66dc77719bac" args="" -->
#define </td><td class="memItemRight" valign="bottom"><b>POLARSSL_ERR_DES_INVALID_INPUT_LENGTH</b>   -0x0C00</td></tr>
<tr><td colspan="2"><h2><a name="func-members"></a>
Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="des_8h.html#aee64993375c58c97b3fc965f76645232">des_setkey_enc</a> (<a class="el" href="structdes__context.html">des_context</a> *ctx, const unsigned char key[8])</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">DES key schedule (56-bit, encryption) <a href="#aee64993375c58c97b3fc965f76645232"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="des_8h.html#a7dffe952ce9419e747d0a4633946eabd">des_setkey_dec</a> (<a class="el" href="structdes__context.html">des_context</a> *ctx, const unsigned char key[8])</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">DES key schedule (56-bit, decryption) <a href="#a7dffe952ce9419e747d0a4633946eabd"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="des_8h.html#a8cf7aa7333feb45e083f3f4ffe32ab74">des3_set2key_enc</a> (<a class="el" href="structdes3__context.html">des3_context</a> *ctx, const unsigned char key[16])</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Triple-DES key schedule (112-bit, encryption) <a href="#a8cf7aa7333feb45e083f3f4ffe32ab74"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="des_8h.html#a29a04fcca2236e62a119381645b65782">des3_set2key_dec</a> (<a class="el" href="structdes3__context.html">des3_context</a> *ctx, const unsigned char key[16])</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Triple-DES key schedule (112-bit, decryption) <a href="#a29a04fcca2236e62a119381645b65782"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="des_8h.html#a6aba8975626002db39adaa92a1d1ed90">des3_set3key_enc</a> (<a class="el" href="structdes3__context.html">des3_context</a> *ctx, const unsigned char key[24])</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Triple-DES key schedule (168-bit, encryption) <a href="#a6aba8975626002db39adaa92a1d1ed90"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="des_8h.html#ada6d7a926e262017c012a5e160b6f26e">des3_set3key_dec</a> (<a class="el" href="structdes3__context.html">des3_context</a> *ctx, const unsigned char key[24])</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Triple-DES key schedule (168-bit, decryption) <a href="#ada6d7a926e262017c012a5e160b6f26e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="des_8h.html#a92ee6c66c1fd47cd3eba61736d0478b1">des_crypt_ecb</a> (<a class="el" href="structdes__context.html">des_context</a> *ctx, const unsigned char input[8], unsigned char output[8])</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">DES-ECB block encryption/decryption. <a href="#a92ee6c66c1fd47cd3eba61736d0478b1"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="des_8h.html#aa1da20413e9e803a8fcf9011643dcdaf">des_crypt_cbc</a> (<a class="el" href="structdes__context.html">des_context</a> *ctx, int mode, int length, unsigned char iv[8], const unsigned char *input, unsigned char *output)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">DES-CBC buffer encryption/decryption. <a href="#aa1da20413e9e803a8fcf9011643dcdaf"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="des_8h.html#ac404a5ef3c0602cdc31c9e0e74530b0a">des3_crypt_ecb</a> (<a class="el" href="structdes3__context.html">des3_context</a> *ctx, const unsigned char input[8], unsigned char output[8])</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">3DES-ECB block encryption/decryption <a href="#ac404a5ef3c0602cdc31c9e0e74530b0a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="des_8h.html#a16ce54d365b8f1a963518bf6c9a24521">des3_crypt_cbc</a> (<a class="el" href="structdes3__context.html">des3_context</a> *ctx, int mode, int length, unsigned char iv[8], const unsigned char *input, unsigned char *output)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">3DES-CBC buffer encryption/decryption <a href="#a16ce54d365b8f1a963518bf6c9a24521"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a2bd2b961a40ca87150e2b9f4f9dc1fb1"></a><!-- doxytag: member="des.h::des_self_test" ref="a2bd2b961a40ca87150e2b9f4f9dc1fb1" args="(int verbose)" -->
int </td><td class="memItemRight" valign="bottom"><b>des_self_test</b> (int verbose)</td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>Copyright (C) 2006-2010, 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>
</div><hr/><h2>Function Documentation</h2>
<a class="anchor" id="a16ce54d365b8f1a963518bf6c9a24521"></a><!-- doxytag: member="des.h::des3_crypt_cbc" ref="a16ce54d365b8f1a963518bf6c9a24521" args="(des3_context *ctx, int mode, int length, unsigned char iv[8], const unsigned char *input, unsigned char *output)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int des3_crypt_cbc </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structdes3__context.html">des3_context</a> * </td>
<td class="paramname"><em>ctx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>mode</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>length</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char </td>
<td class="paramname"><em>iv</em>[8], </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">unsigned char * </td>
<td class="paramname"><em>output</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>3DES-CBC buffer encryption/decryption </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>3DES context </td></tr>
<tr><td class="paramname">mode</td><td>DES_ENCRYPT or DES_DECRYPT </td></tr>
<tr><td class="paramname">length</td><td>length of the input data </td></tr>
<tr><td class="paramname">iv</td><td>initialization vector (updated after use) </td></tr>
<tr><td class="paramname">input</td><td>buffer holding the input data </td></tr>
<tr><td class="paramname">output</td><td>buffer holding the output data</td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>0 if successful, or POLARSSL_ERR_DES_INVALID_INPUT_LENGTH </dd></dl>
</div>
</div>
<a class="anchor" id="ac404a5ef3c0602cdc31c9e0e74530b0a"></a><!-- doxytag: member="des.h::des3_crypt_ecb" ref="ac404a5ef3c0602cdc31c9e0e74530b0a" args="(des3_context *ctx, const unsigned char input[8], unsigned char output[8])" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int des3_crypt_ecb </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structdes3__context.html">des3_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>[8], </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char </td>
<td class="paramname"><em>output</em>[8] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>3DES-ECB block encryption/decryption </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>3DES context </td></tr>
<tr><td class="paramname">input</td><td>64-bit input block </td></tr>
<tr><td class="paramname">output</td><td>64-bit output block</td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>0 if successful </dd></dl>
</div>
</div>
<a class="anchor" id="a29a04fcca2236e62a119381645b65782"></a><!-- doxytag: member="des.h::des3_set2key_dec" ref="a29a04fcca2236e62a119381645b65782" args="(des3_context *ctx, const unsigned char key[16])" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void des3_set2key_dec </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structdes3__context.html">des3_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>[16] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Triple-DES key schedule (112-bit, decryption) </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>3DES context to be initialized </td></tr>
<tr><td class="paramname">key</td><td>16-byte secret key </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a8cf7aa7333feb45e083f3f4ffe32ab74"></a><!-- doxytag: member="des.h::des3_set2key_enc" ref="a8cf7aa7333feb45e083f3f4ffe32ab74" args="(des3_context *ctx, const unsigned char key[16])" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void des3_set2key_enc </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structdes3__context.html">des3_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>[16] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Triple-DES key schedule (112-bit, encryption) </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>3DES context to be initialized </td></tr>
<tr><td class="paramname">key</td><td>16-byte secret key </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ada6d7a926e262017c012a5e160b6f26e"></a><!-- doxytag: member="des.h::des3_set3key_dec" ref="ada6d7a926e262017c012a5e160b6f26e" args="(des3_context *ctx, const unsigned char key[24])" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void des3_set3key_dec </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structdes3__context.html">des3_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>[24] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Triple-DES key schedule (168-bit, decryption) </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>3DES context to be initialized </td></tr>
<tr><td class="paramname">key</td><td>24-byte secret key </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a6aba8975626002db39adaa92a1d1ed90"></a><!-- doxytag: member="des.h::des3_set3key_enc" ref="a6aba8975626002db39adaa92a1d1ed90" args="(des3_context *ctx, const unsigned char key[24])" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void des3_set3key_enc </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structdes3__context.html">des3_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>[24] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Triple-DES key schedule (168-bit, encryption) </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>3DES context to be initialized </td></tr>
<tr><td class="paramname">key</td><td>24-byte secret key </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="aa1da20413e9e803a8fcf9011643dcdaf"></a><!-- doxytag: member="des.h::des_crypt_cbc" ref="aa1da20413e9e803a8fcf9011643dcdaf" args="(des_context *ctx, int mode, int length, unsigned char iv[8], const unsigned char *input, unsigned char *output)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int des_crypt_cbc </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structdes__context.html">des_context</a> * </td>
<td class="paramname"><em>ctx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>mode</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>length</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char </td>
<td class="paramname"><em>iv</em>[8], </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">unsigned char * </td>
<td class="paramname"><em>output</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>DES-CBC buffer encryption/decryption. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>DES context </td></tr>
<tr><td class="paramname">mode</td><td>DES_ENCRYPT or DES_DECRYPT </td></tr>
<tr><td class="paramname">length</td><td>length of the input data </td></tr>
<tr><td class="paramname">iv</td><td>initialization vector (updated after use) </td></tr>
<tr><td class="paramname">input</td><td>buffer holding the input data </td></tr>
<tr><td class="paramname">output</td><td>buffer holding the output data </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a92ee6c66c1fd47cd3eba61736d0478b1"></a><!-- doxytag: member="des.h::des_crypt_ecb" ref="a92ee6c66c1fd47cd3eba61736d0478b1" args="(des_context *ctx, const unsigned char input[8], unsigned char output[8])" -->
<div class="memitem">
<div class="memproto">
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<tr>
<td class="memname">int des_crypt_ecb </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structdes__context.html">des_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>[8], </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char </td>
<td class="paramname"><em>output</em>[8] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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<div class="memdoc">
<p>DES-ECB block encryption/decryption. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>DES context </td></tr>
<tr><td class="paramname">input</td><td>64-bit input block </td></tr>
<tr><td class="paramname">output</td><td>64-bit output block</td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>0 if successful </dd></dl>
</div>
</div>
<a class="anchor" id="a7dffe952ce9419e747d0a4633946eabd"></a><!-- doxytag: member="des.h::des_setkey_dec" ref="a7dffe952ce9419e747d0a4633946eabd" args="(des_context *ctx, const unsigned char key[8])" -->
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<td class="memname">void des_setkey_dec </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structdes__context.html">des_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>[8] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>DES key schedule (56-bit, decryption) </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>DES context to be initialized </td></tr>
<tr><td class="paramname">key</td><td>8-byte secret key </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="aee64993375c58c97b3fc965f76645232"></a><!-- doxytag: member="des.h::des_setkey_enc" ref="aee64993375c58c97b3fc965f76645232" args="(des_context *ctx, const unsigned char key[8])" -->
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<div class="memproto">
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<td class="memname">void des_setkey_enc </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structdes__context.html">des_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>[8] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>DES key schedule (56-bit, encryption) </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>DES context to be initialized </td></tr>
<tr><td class="paramname">key</td><td>8-byte secret key </td></tr>
</table>
</dd>
</dl>
</div>
</div>
</div>
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