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<a href="pem_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Privacy Enhanced Mail (PEM) decoding</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Copyright (C) 2006-2014, Brainspark B.V.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * This file is part of PolarSSL (http://www.polarssl.org)</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org></span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * This program is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * the Free Software Foundation; either version 2 of the License, or</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * (at your option) any later version.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * GNU General Public License for more details.</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * You should have received a copy of the GNU General Public License along</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * with this program; if not, write to the Free Software Foundation, Inc.,</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#if !defined(POLARSSL_CONFIG_FILE)</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="config_8h.html">polarssl/config.h</a>"</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor"></span><span class="preprocessor">#include POLARSSL_CONFIG_FILE</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#if defined(POLARSSL_PEM_PARSE_C) || defined(POLARSSL_PEM_WRITE_C)</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="pem_8h.html">polarssl/pem.h</a>"</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "<a class="code" href="base64_8h.html">polarssl/base64.h</a>"</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include "<a class="code" href="des_8h.html">polarssl/des.h</a>"</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include "<a class="code" href="aes_8h.html">polarssl/aes.h</a>"</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include "<a class="code" href="md5_8h.html">polarssl/md5.h</a>"</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include "<a class="code" href="cipher_8h.html">polarssl/cipher.h</a>"</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#if defined(POLARSSL_PLATFORM_C)</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="platform_8h.html">polarssl/platform.h</a>"</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor"></span><span class="preprocessor">#define polarssl_malloc malloc</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor"></span><span class="preprocessor">#define polarssl_free free</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#include <stdlib.h></span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment">/* Implementation that should never be optimized out by the compiler */</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">static</span> <span class="keywordtype">void</span> polarssl_zeroize( <span class="keywordtype">void</span> *v, <span class="keywordtype">size_t</span> n ) {</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">volatile</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *p = v; <span class="keywordflow">while</span>( n-- ) *p++ = 0;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> }</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#if defined(POLARSSL_PEM_PARSE_C)</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor"></span><span class="keywordtype">void</span> pem_init( pem_context *ctx )</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> {</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  memset( ctx, 0, <span class="keyword">sizeof</span>( pem_context ) );</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> }</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#if defined(POLARSSL_MD5_C) && defined(POLARSSL_CIPHER_MODE_CBC) && \</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor"> ( defined(POLARSSL_DES_C) || defined(POLARSSL_AES_C) )</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor"></span><span class="comment">/*</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> * Read a 16-byte hex string and convert it to binary</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="keyword">static</span> <span class="keywordtype">int</span> pem_get_iv( <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *s, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *iv,</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordtype">size_t</span> iv_len )</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> {</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">size_t</span> i, j, k;</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  memset( iv, 0, iv_len );</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">for</span>( i = 0; i < iv_len * 2; i++, s++ )</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  {</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">if</span>( *s >= <span class="charliteral">'0'</span> && *s <= <span class="charliteral">'9'</span> ) j = *s - <span class="charliteral">'0'</span>; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">if</span>( *s >= <span class="charliteral">'A'</span> && *s <= <span class="charliteral">'F'</span> ) j = *s - <span class="charliteral">'7'</span>; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span>( *s >= <span class="charliteral">'a'</span> && *s <= <span class="charliteral">'f'</span> ) j = *s - <span class="charliteral">'W'</span>; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#aee09ae2e237315b0fa0ad7071f07abcf">POLARSSL_ERR_PEM_INVALID_ENC_IV</a> );</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  k = ( ( i & 1 ) != 0 ) ? j : j << 4;</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  iv[i >> 1] = (<span class="keywordtype">unsigned</span> char)( iv[i >> 1] | k );</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  }</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> }</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="keyword">static</span> <span class="keywordtype">void</span> pem_pbkdf1( <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *key, <span class="keywordtype">size_t</span> keylen,</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *iv,</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pwd, <span class="keywordtype">size_t</span> pwdlen )</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> {</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="structmd5__context.html">md5_context</a> md5_ctx;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> md5sum[16];</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordtype">size_t</span> use_len;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <a class="code" href="md5_8h.html#a8c0d8583739a5568cbdcc2467e8ce6db">md5_init</a>( &md5_ctx );</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> * key[ 0..15] = MD5(pwd || IV)</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="md5_8h.html#ac6e9fda1d8fda7d51fd1c0c036f87cfe">md5_starts</a>( &md5_ctx );</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <a class="code" href="md5_8h.html#a960c10c0923005ebdbe8ae9d8f3e082e">md5_update</a>( &md5_ctx, pwd, pwdlen );</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <a class="code" href="md5_8h.html#a960c10c0923005ebdbe8ae9d8f3e082e">md5_update</a>( &md5_ctx, iv, 8 );</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="md5_8h.html#a9f91661d81cffc55facccc8e0fbf50a0">md5_finish</a>( &md5_ctx, md5sum );</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">if</span>( keylen <= 16 )</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  {</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  memcpy( key, md5sum, keylen );</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <a class="code" href="md5_8h.html#a477831495e7408a962cf4e1da1c8c62d">md5_free</a>( &md5_ctx );</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  polarssl_zeroize( md5sum, 16 );</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  memcpy( key, md5sum, 16 );</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"> * key[16..23] = MD5(key[ 0..15] || pwd || IV])</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <a class="code" href="md5_8h.html#ac6e9fda1d8fda7d51fd1c0c036f87cfe">md5_starts</a>( &md5_ctx );</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <a class="code" href="md5_8h.html#a960c10c0923005ebdbe8ae9d8f3e082e">md5_update</a>( &md5_ctx, md5sum, 16 );</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <a class="code" href="md5_8h.html#a960c10c0923005ebdbe8ae9d8f3e082e">md5_update</a>( &md5_ctx, pwd, pwdlen );</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="md5_8h.html#a960c10c0923005ebdbe8ae9d8f3e082e">md5_update</a>( &md5_ctx, iv, 8 );</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <a class="code" href="md5_8h.html#a9f91661d81cffc55facccc8e0fbf50a0">md5_finish</a>( &md5_ctx, md5sum );</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  use_len = 16;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">if</span>( keylen < 32 )</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  use_len = keylen - 16;</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  memcpy( key + 16, md5sum, use_len );</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="md5_8h.html#a477831495e7408a962cf4e1da1c8c62d">md5_free</a>( &md5_ctx );</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  polarssl_zeroize( md5sum, 16 );</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> }</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="preprocessor">#if defined(POLARSSL_DES_C)</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="preprocessor"></span><span class="comment">/*</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment"> * Decrypt with DES-CBC, using PBKDF1 for key derivation</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="keyword">static</span> <span class="keywordtype">void</span> pem_des_decrypt( <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> des_iv[8],</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> buflen,</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pwd, <span class="keywordtype">size_t</span> pwdlen )</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> {</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <a class="code" href="structdes__context.html">des_context</a> des_ctx;</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> des_key[8];</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <a class="code" href="des_8h.html#a1ed09f7f6da53be335a13839b8036e61">des_init</a>( &des_ctx );</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  pem_pbkdf1( des_key, 8, des_iv, pwd, pwdlen );</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <a class="code" href="des_8h.html#ab300e183176d3e3b21af9452c75acb85">des_setkey_dec</a>( &des_ctx, des_key );</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <a class="code" href="des_8h.html#a71a6423b0f22c8f619466c376176cebc">des_crypt_cbc</a>( &des_ctx, <a class="code" href="des_8h.html#a7ca3b464dc9e6cabf82f636101b6e133">DES_DECRYPT</a>, buflen,</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  des_iv, buf, buf );</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <a class="code" href="des_8h.html#ae8d8b3cc4fc59ef7b59a2392c988fc30">des_free</a>( &des_ctx );</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  polarssl_zeroize( des_key, 8 );</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> }</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="comment"> * Decrypt with 3DES-CBC, using PBKDF1 for key derivation</span></div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="keyword">static</span> <span class="keywordtype">void</span> pem_des3_decrypt( <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> des3_iv[8],</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> buflen,</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pwd, <span class="keywordtype">size_t</span> pwdlen )</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> {</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <a class="code" href="structdes3__context.html">des3_context</a> des3_ctx;</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> des3_key[24];</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <a class="code" href="des_8h.html#a4d351cc3a7e07b759d74044d09b44ca3">des3_init</a>( &des3_ctx );</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  pem_pbkdf1( des3_key, 24, des3_iv, pwd, pwdlen );</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a class="code" href="des_8h.html#a563cfb88d2dbd782e9ddeae473747877">des3_set3key_dec</a>( &des3_ctx, des3_key );</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <a class="code" href="des_8h.html#ab632094bc0183a19d1108bcac3ec2ab2">des3_crypt_cbc</a>( &des3_ctx, <a class="code" href="des_8h.html#a7ca3b464dc9e6cabf82f636101b6e133">DES_DECRYPT</a>, buflen,</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  des3_iv, buf, buf );</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <a class="code" href="des_8h.html#aa2df5205d7bdcd9b3a9a3f721195ceeb">des3_free</a>( &des3_ctx );</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  polarssl_zeroize( des3_key, 24 );</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> }</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_DES_C */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="preprocessor">#if defined(POLARSSL_AES_C)</span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="preprocessor"></span><span class="comment">/*</span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment"> * Decrypt with AES-XXX-CBC, using PBKDF1 for key derivation</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="keyword">static</span> <span class="keywordtype">void</span> pem_aes_decrypt( <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> aes_iv[16], <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> keylen,</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> buflen,</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pwd, <span class="keywordtype">size_t</span> pwdlen )</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> {</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <a class="code" href="structaes__context.html">aes_context</a> aes_ctx;</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> aes_key[32];</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <a class="code" href="aes_8h.html#afd6a37a98051a30f74418beb908d0ecd">aes_init</a>( &aes_ctx );</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  pem_pbkdf1( aes_key, keylen, aes_iv, pwd, pwdlen );</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <a class="code" href="aes_8h.html#ae57c42e15b27171ebe6ba075c8f7566d">aes_setkey_dec</a>( &aes_ctx, aes_key, keylen * 8 );</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <a class="code" href="aes_8h.html#a2eecec5f7c59c04c29dcbf476d8520a3">aes_crypt_cbc</a>( &aes_ctx, <a class="code" href="aes_8h.html#a8a3cf36dc3c8860519f33907bad182c9">AES_DECRYPT</a>, buflen,</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  aes_iv, buf, buf );</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> </div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <a class="code" href="aes_8h.html#a9ae37ee8cfabac5da5df9a573c34850f">aes_free</a>( &aes_ctx );</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  polarssl_zeroize( aes_key, keylen );</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> }</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_AES_C */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_MD5_C && POLARSSL_CIPHER_MODE_CBC &&</span></div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="comment"> ( POLARSSL_AES_C || POLARSSL_DES_C ) */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="keywordtype">int</span> pem_read_buffer( pem_context *ctx, <span class="keyword">const</span> <span class="keywordtype">char</span> *header, <span class="keyword">const</span> <span class="keywordtype">char</span> *footer,</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *data, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pwd,</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordtype">size_t</span> pwdlen, <span class="keywordtype">size_t</span> *use_len )</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> {</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordtype">int</span> ret, enc;</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordtype">size_t</span> len;</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf;</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *s1, *s2, *end;</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="preprocessor">#if defined(POLARSSL_MD5_C) && defined(POLARSSL_CIPHER_MODE_CBC) && \</span></div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="preprocessor"> ( defined(POLARSSL_DES_C) || defined(POLARSSL_AES_C) )</span></div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="preprocessor"></span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> pem_iv[16];</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <a class="code" href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6">cipher_type_t</a> enc_alg = <a class="code" href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6af46e4d5256f808678490a13ab72c1006">POLARSSL_CIPHER_NONE</a>;</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="preprocessor"></span> ((void) pwd);</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  ((void) pwdlen);</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_MD5_C && POLARSSL_CIPHER_MODE_CBC &&</span></div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment"> ( POLARSSL_AES_C || POLARSSL_DES_C ) */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">if</span>( ctx == NULL )</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#ae178eb5fe3590fc7bb43c16ba1874c2f">POLARSSL_ERR_PEM_BAD_INPUT_DATA</a> );</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> </div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  s1 = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *) strstr( (<span class="keyword">const</span> <span class="keywordtype">char</span> *) data, header );</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">if</span>( s1 == NULL )</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#aba55809b3ae6781d4ab92ccdfbe54a9c">POLARSSL_ERR_PEM_NO_HEADER_FOOTER_PRESENT</a> );</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  s2 = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *) strstr( (<span class="keyword">const</span> <span class="keywordtype">char</span> *) data, footer );</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordflow">if</span>( s2 == NULL || s2 <= s1 )</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#aba55809b3ae6781d4ab92ccdfbe54a9c">POLARSSL_ERR_PEM_NO_HEADER_FOOTER_PRESENT</a> );</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  s1 += strlen( header );</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">if</span>( *s1 == <span class="charliteral">'\r'</span> ) s1++;</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">if</span>( *s1 == <span class="charliteral">'\n'</span> ) s1++;</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">else</span> <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#aba55809b3ae6781d4ab92ccdfbe54a9c">POLARSSL_ERR_PEM_NO_HEADER_FOOTER_PRESENT</a> );</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> </div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  end = s2;</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  end += strlen( footer );</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">if</span>( *end == <span class="charliteral">'\r'</span> ) end++;</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">if</span>( *end == <span class="charliteral">'\n'</span> ) end++;</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  *use_len = end - data;</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  enc = 0;</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">if</span>( memcmp( s1, <span class="stringliteral">"Proc-Type: 4,ENCRYPTED"</span>, 22 ) == 0 )</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  {</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="preprocessor">#if defined(POLARSSL_MD5_C) && defined(POLARSSL_CIPHER_MODE_CBC) && \</span></div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="preprocessor"> ( defined(POLARSSL_DES_C) || defined(POLARSSL_AES_C) )</span></div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="preprocessor"></span> enc++;</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> </div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  s1 += 22;</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">if</span>( *s1 == <span class="charliteral">'\r'</span> ) s1++;</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordflow">if</span>( *s1 == <span class="charliteral">'\n'</span> ) s1++;</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">else</span> <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#abf162457129ad95e973e02b4c72effdc">POLARSSL_ERR_PEM_INVALID_DATA</a> );</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> </div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="preprocessor">#if defined(POLARSSL_DES_C)</span></div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="preprocessor"></span> <span class="keywordflow">if</span>( memcmp( s1, <span class="stringliteral">"DEK-Info: DES-EDE3-CBC,"</span>, 23 ) == 0 )</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  {</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  enc_alg = <a class="code" href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6ae6ab208bff4f88dbba3277a05686b0a9">POLARSSL_CIPHER_DES_EDE3_CBC</a>;</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> </div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  s1 += 23;</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">if</span>( pem_get_iv( s1, pem_iv, 8 ) != 0 )</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#aee09ae2e237315b0fa0ad7071f07abcf">POLARSSL_ERR_PEM_INVALID_ENC_IV</a> );</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  s1 += 16;</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  }</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span>( memcmp( s1, <span class="stringliteral">"DEK-Info: DES-CBC,"</span>, 18 ) == 0 )</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  {</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  enc_alg = <a class="code" href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6af14528a0b54195461babbaec8181913c">POLARSSL_CIPHER_DES_CBC</a>;</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> </div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  s1 += 18;</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">if</span>( pem_get_iv( s1, pem_iv, 8) != 0 )</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#aee09ae2e237315b0fa0ad7071f07abcf">POLARSSL_ERR_PEM_INVALID_ENC_IV</a> );</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> </div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  s1 += 16;</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  }</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_DES_C */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="preprocessor">#if defined(POLARSSL_AES_C)</span></div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="preprocessor"></span> <span class="keywordflow">if</span>( memcmp( s1, <span class="stringliteral">"DEK-Info: AES-"</span>, 14 ) == 0 )</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  {</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">if</span>( memcmp( s1, <span class="stringliteral">"DEK-Info: AES-128-CBC,"</span>, 22 ) == 0 )</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  enc_alg = <a class="code" href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6a8d4e003be055910575927334574d81e2">POLARSSL_CIPHER_AES_128_CBC</a>;</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span>( memcmp( s1, <span class="stringliteral">"DEK-Info: AES-192-CBC,"</span>, 22 ) == 0 )</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  enc_alg = <a class="code" href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6adf8f7062a1324652e90eedd7d986a15a">POLARSSL_CIPHER_AES_192_CBC</a>;</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span>( memcmp( s1, <span class="stringliteral">"DEK-Info: AES-256-CBC,"</span>, 22 ) == 0 )</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  enc_alg = <a class="code" href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6a383bff04387b7fbb14fdf526688a87c4">POLARSSL_CIPHER_AES_256_CBC</a>;</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#a8094fdb48782e6b5ffeebc8912f94597">POLARSSL_ERR_PEM_UNKNOWN_ENC_ALG</a> );</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> </div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  s1 += 22;</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keywordflow">if</span>( pem_get_iv( s1, pem_iv, 16 ) != 0 )</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#aee09ae2e237315b0fa0ad7071f07abcf">POLARSSL_ERR_PEM_INVALID_ENC_IV</a> );</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  s1 += 32;</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  }</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_AES_C */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="keywordflow">if</span>( enc_alg == <a class="code" href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6af46e4d5256f808678490a13ab72c1006">POLARSSL_CIPHER_NONE</a> )</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#a8094fdb48782e6b5ffeebc8912f94597">POLARSSL_ERR_PEM_UNKNOWN_ENC_ALG</a> );</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span> </div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keywordflow">if</span>( *s1 == <span class="charliteral">'\r'</span> ) s1++;</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">if</span>( *s1 == <span class="charliteral">'\n'</span> ) s1++;</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keywordflow">else</span> <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#abf162457129ad95e973e02b4c72effdc">POLARSSL_ERR_PEM_INVALID_DATA</a> );</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> <span class="preprocessor"></span> <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#a944af87c629fac2a22082a49be42ae3e">POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE</a> );</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_MD5_C && POLARSSL_CIPHER_MODE_CBC &&</span></div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> <span class="comment"> ( POLARSSL_AES_C || POLARSSL_DES_C ) */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> <span class="preprocessor"></span> }</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span> </div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  len = 0;</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  ret = <a class="code" href="base64_8h.html#ab7f485e57a533e6d0573c406ffcab378">base64_decode</a>( NULL, &len, s1, s2 - s1 );</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> </div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keywordflow">if</span>( ret == <a class="code" href="base64_8h.html#a8fac8bb4d3ed57b1beb10bf617664a1d">POLARSSL_ERR_BASE64_INVALID_CHARACTER</a> )</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#abf162457129ad95e973e02b4c72effdc">POLARSSL_ERR_PEM_INVALID_DATA</a> + ret );</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> </div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="keywordflow">if</span>( ( buf = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *) <a class="code" href="test__suite__aes_8cbc_8c.html#a2a0cfb9e59f28e2a1a5fd1880fb20d4b">polarssl_malloc</a>( len ) ) == NULL )</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#aa5881696f05e65e7aa94883c933917f5">POLARSSL_ERR_PEM_MALLOC_FAILED</a> );</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span> </div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keywordflow">if</span>( ( ret = <a class="code" href="base64_8h.html#ab7f485e57a533e6d0573c406ffcab378">base64_decode</a>( buf, &len, s1, s2 - s1 ) ) != 0 )</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  {</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a3c8219c194813f302bf78fe73566cb2d">polarssl_free</a>( buf );</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#abf162457129ad95e973e02b4c72effdc">POLARSSL_ERR_PEM_INVALID_DATA</a> + ret );</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  }</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span> </div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keywordflow">if</span>( enc != 0 )</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  {</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="preprocessor">#if defined(POLARSSL_MD5_C) && defined(POLARSSL_CIPHER_MODE_CBC) && \</span></div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span> <span class="preprocessor"> ( defined(POLARSSL_DES_C) || defined(POLARSSL_AES_C) )</span></div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="preprocessor"></span> <span class="keywordflow">if</span>( pwd == NULL )</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  {</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a3c8219c194813f302bf78fe73566cb2d">polarssl_free</a>( buf );</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#afc5d820a2b2e902f0761de2172cc3ad4">POLARSSL_ERR_PEM_PASSWORD_REQUIRED</a> );</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  }</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span> </div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span> <span class="preprocessor">#if defined(POLARSSL_DES_C)</span></div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="preprocessor"></span> <span class="keywordflow">if</span>( enc_alg == <a class="code" href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6ae6ab208bff4f88dbba3277a05686b0a9">POLARSSL_CIPHER_DES_EDE3_CBC</a> )</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  pem_des3_decrypt( pem_iv, buf, len, pwd, pwdlen );</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span>( enc_alg == <a class="code" href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6af14528a0b54195461babbaec8181913c">POLARSSL_CIPHER_DES_CBC</a> )</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  pem_des_decrypt( pem_iv, buf, len, pwd, pwdlen );</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_DES_C */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span> <span class="preprocessor">#if defined(POLARSSL_AES_C)</span></div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> <span class="preprocessor"></span> <span class="keywordflow">if</span>( enc_alg == <a class="code" href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6a8d4e003be055910575927334574d81e2">POLARSSL_CIPHER_AES_128_CBC</a> )</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  pem_aes_decrypt( pem_iv, 16, buf, len, pwd, pwdlen );</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span>( enc_alg == <a class="code" href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6adf8f7062a1324652e90eedd7d986a15a">POLARSSL_CIPHER_AES_192_CBC</a> )</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  pem_aes_decrypt( pem_iv, 24, buf, len, pwd, pwdlen );</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span>( enc_alg == <a class="code" href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6a383bff04387b7fbb14fdf526688a87c4">POLARSSL_CIPHER_AES_256_CBC</a> )</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  pem_aes_decrypt( pem_iv, 32, buf, len, pwd, pwdlen );</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_AES_C */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> <span class="comment"> * The result will be ASN.1 starting with a SEQUENCE tag, with 1 to 3</span></div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="comment"> * length bytes (allow 4 to be sure) in all known use cases.</span></div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="comment"> * Use that as heurisitic to try detecting password mismatchs.</span></div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keywordflow">if</span>( len <= 2 || buf[0] != 0x30 || buf[1] > 0x83 )</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  {</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a3c8219c194813f302bf78fe73566cb2d">polarssl_free</a>( buf );</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#aa950405345e1ae27eb5f7c91f3be1f04">POLARSSL_ERR_PEM_PASSWORD_MISMATCH</a> );</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  }</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="preprocessor"></span> <a class="code" href="test__suite__aes_8cbc_8c.html#a3c8219c194813f302bf78fe73566cb2d">polarssl_free</a>( buf );</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#a944af87c629fac2a22082a49be42ae3e">POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE</a> );</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_MD5_C && POLARSSL_CIPHER_MODE_CBC &&</span></div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="comment"> ( POLARSSL_AES_C || POLARSSL_DES_C ) */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> <span class="preprocessor"></span> }</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> </div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  ctx->buf = buf;</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  ctx->buflen = len;</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span> </div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span> }</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span> </div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span> <span class="keywordtype">void</span> pem_free( pem_context *ctx )</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span> {</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a3c8219c194813f302bf78fe73566cb2d">polarssl_free</a>( ctx->buf );</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a3c8219c194813f302bf78fe73566cb2d">polarssl_free</a>( ctx->info );</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span> </div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  polarssl_zeroize( ctx, <span class="keyword">sizeof</span>( pem_context ) );</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> }</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_PEM_PARSE_C */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> <span class="preprocessor">#if defined(POLARSSL_PEM_WRITE_C)</span></div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> <span class="preprocessor"></span><span class="keywordtype">int</span> pem_write_buffer( <span class="keyword">const</span> <span class="keywordtype">char</span> *header, <span class="keyword">const</span> <span class="keywordtype">char</span> *footer,</div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *der_data, <span class="keywordtype">size_t</span> der_len,</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf, <span class="keywordtype">size_t</span> buf_len, <span class="keywordtype">size_t</span> *olen )</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span> {</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keywordtype">int</span> ret;</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *encode_buf, *c, *p = buf;</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="keywordtype">size_t</span> len = 0, use_len = 0, add_len = 0;</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span> </div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <a class="code" href="base64_8h.html#a7c33d8904e1ace023ffdebe04850f585">base64_encode</a>( NULL, &use_len, der_data, der_len );</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  add_len = strlen( header ) + strlen( footer ) + ( use_len / 64 ) + 1;</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span> </div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="keywordflow">if</span>( use_len + add_len > buf_len )</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  {</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  *olen = use_len + add_len;</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">return</span>( <a class="code" href="base64_8h.html#a9a778cc91797eec1df0548e1f4afd997">POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL</a> );</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  }</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span> </div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="keywordflow">if</span>( ( encode_buf = <a class="code" href="test__suite__aes_8cbc_8c.html#a2a0cfb9e59f28e2a1a5fd1880fb20d4b">polarssl_malloc</a>( use_len ) ) == NULL )</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keywordflow">return</span>( <a class="code" href="pem_8h.html#aa5881696f05e65e7aa94883c933917f5">POLARSSL_ERR_PEM_MALLOC_FAILED</a> );</div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span> </div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keywordflow">if</span>( ( ret = <a class="code" href="base64_8h.html#a7c33d8904e1ace023ffdebe04850f585">base64_encode</a>( encode_buf, &use_len, der_data,</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  der_len ) ) != 0 )</div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  {</div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a3c8219c194813f302bf78fe73566cb2d">polarssl_free</a>( encode_buf );</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  }</div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span> </div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  memcpy( p, header, strlen( header ) );</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  p += strlen( header );</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  c = encode_buf;</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> </div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="keywordflow">while</span>( use_len )</div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  {</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  len = ( use_len > 64 ) ? 64 : use_len;</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  memcpy( p, c, len );</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  use_len -= len;</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  p += len;</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  c += len;</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  *p++ = <span class="charliteral">'\n'</span>;</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  }</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span> </div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  memcpy( p, footer, strlen( footer ) );</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  p += strlen( footer );</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span> </div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  *p++ = <span class="charliteral">'\0'</span>;</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  *olen = p - buf;</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span> </div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a3c8219c194813f302bf78fe73566cb2d">polarssl_free</a>( encode_buf );</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span> }</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_PEM_WRITE_C */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span> <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_PEM_PARSE_C || POLARSSL_PEM_WRITE_C */</span><span class="preprocessor"></span></div>
<div class="ttc" id="base64_8h_html_ab7f485e57a533e6d0573c406ffcab378"><div class="ttname"><a href="base64_8h.html#ab7f485e57a533e6d0573c406ffcab378">base64_decode</a></div><div class="ttdeci">int base64_decode(unsigned char *dst, size_t *dlen, const unsigned char *src, size_t slen)</div><div class="ttdoc">Decode a base64-formatted buffer. </div></div>
<div class="ttc" id="pem_8h_html_a944af87c629fac2a22082a49be42ae3e"><div class="ttname"><a href="pem_8h.html#a944af87c629fac2a22082a49be42ae3e">POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE</a></div><div class="ttdeci">#define POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE</div><div class="ttdoc">Unavailable feature, e.g. </div><div class="ttdef"><b>Definition:</b> <a href="pem_8h_source.html#l00045">pem.h:45</a></div></div>
<div class="ttc" id="des_8h_html_a4d351cc3a7e07b759d74044d09b44ca3"><div class="ttname"><a href="des_8h.html#a4d351cc3a7e07b759d74044d09b44ca3">des3_init</a></div><div class="ttdeci">void des3_init(des3_context *ctx)</div><div class="ttdoc">Initialize Triple-DES context. </div></div>
<div class="ttc" id="cipher_8h_html_a806c82ed7e8b591dedc86093f38274e6af46e4d5256f808678490a13ab72c1006"><div class="ttname"><a href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6af46e4d5256f808678490a13ab72c1006">POLARSSL_CIPHER_NONE</a></div><div class="ttdef"><b>Definition:</b> <a href="cipher_8h_source.html#l00083">cipher.h:83</a></div></div>
<div class="ttc" id="pem_8h_html_a8094fdb48782e6b5ffeebc8912f94597"><div class="ttname"><a href="pem_8h.html#a8094fdb48782e6b5ffeebc8912f94597">POLARSSL_ERR_PEM_UNKNOWN_ENC_ALG</a></div><div class="ttdeci">#define POLARSSL_ERR_PEM_UNKNOWN_ENC_ALG</div><div class="ttdoc">Unsupported key encryption algorithm. </div><div class="ttdef"><b>Definition:</b> <a href="pem_8h_source.html#l00042">pem.h:42</a></div></div>
<div class="ttc" id="test__suite__aes_8cbc_8c_html_a2a0cfb9e59f28e2a1a5fd1880fb20d4b"><div class="ttname"><a href="test__suite__aes_8cbc_8c.html#a2a0cfb9e59f28e2a1a5fd1880fb20d4b">polarssl_malloc</a></div><div class="ttdeci">#define polarssl_malloc</div><div class="ttdef"><b>Definition:</b> <a href="test__suite__aes_8cbc_8c_source.html#l00310">test_suite_aes.cbc.c:310</a></div></div>
<div class="ttc" id="test__suite__aes_8cbc_8c_html_a3c8219c194813f302bf78fe73566cb2d"><div class="ttname"><a href="test__suite__aes_8cbc_8c.html#a3c8219c194813f302bf78fe73566cb2d">polarssl_free</a></div><div class="ttdeci">#define polarssl_free</div><div class="ttdef"><b>Definition:</b> <a href="test__suite__aes_8cbc_8c_source.html#l00311">test_suite_aes.cbc.c:311</a></div></div>
<div class="ttc" id="cipher_8h_html_a806c82ed7e8b591dedc86093f38274e6adf8f7062a1324652e90eedd7d986a15a"><div class="ttname"><a href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6adf8f7062a1324652e90eedd7d986a15a">POLARSSL_CIPHER_AES_192_CBC</a></div><div class="ttdef"><b>Definition:</b> <a href="cipher_8h_source.html#l00089">cipher.h:89</a></div></div>
<div class="ttc" id="pem_8h_html_aa5881696f05e65e7aa94883c933917f5"><div class="ttname"><a href="pem_8h.html#aa5881696f05e65e7aa94883c933917f5">POLARSSL_ERR_PEM_MALLOC_FAILED</a></div><div class="ttdeci">#define POLARSSL_ERR_PEM_MALLOC_FAILED</div><div class="ttdoc">Failed to allocate memory. </div><div class="ttdef"><b>Definition:</b> <a href="pem_8h_source.html#l00040">pem.h:40</a></div></div>
<div class="ttc" id="aes_8h_html_a8a3cf36dc3c8860519f33907bad182c9"><div class="ttname"><a href="aes_8h.html#a8a3cf36dc3c8860519f33907bad182c9">AES_DECRYPT</a></div><div class="ttdeci">#define AES_DECRYPT</div><div class="ttdef"><b>Definition:</b> <a href="aes_8h_source.html#l00047">aes.h:47</a></div></div>
<div class="ttc" id="structaes__context_html"><div class="ttname"><a href="structaes__context.html">aes_context</a></div><div class="ttdoc">AES context structure. </div><div class="ttdef"><b>Definition:</b> <a href="aes_8h_source.html#l00068">aes.h:68</a></div></div>
<div class="ttc" id="config_8h_html"><div class="ttname"><a href="config_8h.html">config.h</a></div><div class="ttdoc">Configuration options (set of defines) </div></div>
<div class="ttc" id="aes_8h_html_ae57c42e15b27171ebe6ba075c8f7566d"><div class="ttname"><a href="aes_8h.html#ae57c42e15b27171ebe6ba075c8f7566d">aes_setkey_dec</a></div><div class="ttdeci">int aes_setkey_dec(aes_context *ctx, const unsigned char *key, unsigned int keysize)</div><div class="ttdoc">AES key schedule (decryption) </div></div>
<div class="ttc" id="md5_8h_html_a9f91661d81cffc55facccc8e0fbf50a0"><div class="ttname"><a href="md5_8h.html#a9f91661d81cffc55facccc8e0fbf50a0">md5_finish</a></div><div class="ttdeci">void md5_finish(md5_context *ctx, unsigned char output[16])</div><div class="ttdoc">MD5 final digest. </div></div>
<div class="ttc" id="platform_8h_html"><div class="ttname"><a href="platform_8h.html">platform.h</a></div><div class="ttdoc">PolarSSL Platform abstraction layer. </div></div>
<div class="ttc" id="structdes__context_html"><div class="ttname"><a href="structdes__context.html">des_context</a></div><div class="ttdoc">DES context structure. </div><div class="ttdef"><b>Definition:</b> <a href="des_8h_source.html#l00063">des.h:63</a></div></div>
<div class="ttc" id="md5_8h_html_a477831495e7408a962cf4e1da1c8c62d"><div class="ttname"><a href="md5_8h.html#a477831495e7408a962cf4e1da1c8c62d">md5_free</a></div><div class="ttdeci">void md5_free(md5_context *ctx)</div><div class="ttdoc">Clear MD5 context. </div></div>
<div class="ttc" id="des_8h_html_aa2df5205d7bdcd9b3a9a3f721195ceeb"><div class="ttname"><a href="des_8h.html#aa2df5205d7bdcd9b3a9a3f721195ceeb">des3_free</a></div><div class="ttdeci">void des3_free(des3_context *ctx)</div><div class="ttdoc">Clear Triple-DES context. </div></div>
<div class="ttc" id="des_8h_html_a563cfb88d2dbd782e9ddeae473747877"><div class="ttname"><a href="des_8h.html#a563cfb88d2dbd782e9ddeae473747877">des3_set3key_dec</a></div><div class="ttdeci">int des3_set3key_dec(des3_context *ctx, const unsigned char key[DES_KEY_SIZE *3])</div><div class="ttdoc">Triple-DES key schedule (168-bit, decryption) </div></div>
<div class="ttc" id="pem_8h_html_afc5d820a2b2e902f0761de2172cc3ad4"><div class="ttname"><a href="pem_8h.html#afc5d820a2b2e902f0761de2172cc3ad4">POLARSSL_ERR_PEM_PASSWORD_REQUIRED</a></div><div class="ttdeci">#define POLARSSL_ERR_PEM_PASSWORD_REQUIRED</div><div class="ttdoc">Private key password can&#39;t be empty. </div><div class="ttdef"><b>Definition:</b> <a href="pem_8h_source.html#l00043">pem.h:43</a></div></div>
<div class="ttc" id="pem_8h_html"><div class="ttname"><a href="pem_8h.html">pem.h</a></div><div class="ttdoc">Privacy Enhanced Mail (PEM) decoding. </div></div>
<div class="ttc" id="base64_8h_html_a9a778cc91797eec1df0548e1f4afd997"><div class="ttname"><a href="base64_8h.html#a9a778cc91797eec1df0548e1f4afd997">POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL</a></div><div class="ttdeci">#define POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL</div><div class="ttdoc">Output buffer too small. </div><div class="ttdef"><b>Definition:</b> <a href="base64_8h_source.html#l00032">base64.h:32</a></div></div>
<div class="ttc" id="structdes3__context_html"><div class="ttname"><a href="structdes3__context.html">des3_context</a></div><div class="ttdoc">Triple-DES context structure. </div><div class="ttdef"><b>Definition:</b> <a href="des_8h_source.html#l00073">des.h:73</a></div></div>
<div class="ttc" id="cipher_8h_html_a806c82ed7e8b591dedc86093f38274e6"><div class="ttname"><a href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6">cipher_type_t</a></div><div class="ttdeci">cipher_type_t</div><div class="ttdef"><b>Definition:</b> <a href="cipher_8h_source.html#l00082">cipher.h:82</a></div></div>
<div class="ttc" id="des_8h_html_a1ed09f7f6da53be335a13839b8036e61"><div class="ttname"><a href="des_8h.html#a1ed09f7f6da53be335a13839b8036e61">des_init</a></div><div class="ttdeci">void des_init(des_context *ctx)</div><div class="ttdoc">Initialize DES context. </div></div>
<div class="ttc" id="aes_8h_html_a2eecec5f7c59c04c29dcbf476d8520a3"><div class="ttname"><a href="aes_8h.html#a2eecec5f7c59c04c29dcbf476d8520a3">aes_crypt_cbc</a></div><div class="ttdeci">int aes_crypt_cbc(aes_context *ctx, int mode, size_t length, unsigned char iv[16], const unsigned char *input, unsigned char *output)</div><div class="ttdoc">AES-CBC buffer encryption/decryption Length should be a multiple of the block size (16 bytes) ...</div></div>
<div class="ttc" id="cipher_8h_html_a806c82ed7e8b591dedc86093f38274e6af14528a0b54195461babbaec8181913c"><div class="ttname"><a href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6af14528a0b54195461babbaec8181913c">POLARSSL_CIPHER_DES_CBC</a></div><div class="ttdef"><b>Definition:</b> <a href="cipher_8h_source.html#l00116">cipher.h:116</a></div></div>
<div class="ttc" id="aes_8h_html"><div class="ttname"><a href="aes_8h.html">aes.h</a></div><div class="ttdoc">AES block cipher. </div></div>
<div class="ttc" id="pem_8h_html_aa950405345e1ae27eb5f7c91f3be1f04"><div class="ttname"><a href="pem_8h.html#aa950405345e1ae27eb5f7c91f3be1f04">POLARSSL_ERR_PEM_PASSWORD_MISMATCH</a></div><div class="ttdeci">#define POLARSSL_ERR_PEM_PASSWORD_MISMATCH</div><div class="ttdoc">Given private key password does not allow for correct decryption. </div><div class="ttdef"><b>Definition:</b> <a href="pem_8h_source.html#l00044">pem.h:44</a></div></div>
<div class="ttc" id="cipher_8h_html_a806c82ed7e8b591dedc86093f38274e6a8d4e003be055910575927334574d81e2"><div class="ttname"><a href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6a8d4e003be055910575927334574d81e2">POLARSSL_CIPHER_AES_128_CBC</a></div><div class="ttdef"><b>Definition:</b> <a href="cipher_8h_source.html#l00088">cipher.h:88</a></div></div>
<div class="ttc" id="md5_8h_html_ac6e9fda1d8fda7d51fd1c0c036f87cfe"><div class="ttname"><a href="md5_8h.html#ac6e9fda1d8fda7d51fd1c0c036f87cfe">md5_starts</a></div><div class="ttdeci">void md5_starts(md5_context *ctx)</div><div class="ttdoc">MD5 context setup. </div></div>
<div class="ttc" id="pem_8h_html_aee09ae2e237315b0fa0ad7071f07abcf"><div class="ttname"><a href="pem_8h.html#aee09ae2e237315b0fa0ad7071f07abcf">POLARSSL_ERR_PEM_INVALID_ENC_IV</a></div><div class="ttdeci">#define POLARSSL_ERR_PEM_INVALID_ENC_IV</div><div class="ttdoc">RSA IV is not in hex-format. </div><div class="ttdef"><b>Definition:</b> <a href="pem_8h_source.html#l00041">pem.h:41</a></div></div>
<div class="ttc" id="structmd5__context_html"><div class="ttname"><a href="structmd5__context.html">md5_context</a></div><div class="ttdoc">MD5 context structure. </div><div class="ttdef"><b>Definition:</b> <a href="md5_8h_source.html#l00058">md5.h:58</a></div></div>
<div class="ttc" id="cipher_8h_html"><div class="ttname"><a href="cipher_8h.html">cipher.h</a></div><div class="ttdoc">Generic cipher wrapper. </div></div>
<div class="ttc" id="pem_8h_html_abf162457129ad95e973e02b4c72effdc"><div class="ttname"><a href="pem_8h.html#abf162457129ad95e973e02b4c72effdc">POLARSSL_ERR_PEM_INVALID_DATA</a></div><div class="ttdeci">#define POLARSSL_ERR_PEM_INVALID_DATA</div><div class="ttdoc">PEM string is not as expected. </div><div class="ttdef"><b>Definition:</b> <a href="pem_8h_source.html#l00039">pem.h:39</a></div></div>
<div class="ttc" id="des_8h_html_ae8d8b3cc4fc59ef7b59a2392c988fc30"><div class="ttname"><a href="des_8h.html#ae8d8b3cc4fc59ef7b59a2392c988fc30">des_free</a></div><div class="ttdeci">void des_free(des_context *ctx)</div><div class="ttdoc">Clear DES context. </div></div>
<div class="ttc" id="des_8h_html_a71a6423b0f22c8f619466c376176cebc"><div class="ttname"><a href="des_8h.html#a71a6423b0f22c8f619466c376176cebc">des_crypt_cbc</a></div><div class="ttdeci">int des_crypt_cbc(des_context *ctx, int mode, size_t length, unsigned char iv[8], const unsigned char *input, unsigned char *output)</div><div class="ttdoc">DES-CBC buffer encryption/decryption. </div></div>
<div class="ttc" id="des_8h_html"><div class="ttname"><a href="des_8h.html">des.h</a></div><div class="ttdoc">DES block cipher. </div></div>
<div class="ttc" id="md5_8h_html_a8c0d8583739a5568cbdcc2467e8ce6db"><div class="ttname"><a href="md5_8h.html#a8c0d8583739a5568cbdcc2467e8ce6db">md5_init</a></div><div class="ttdeci">void md5_init(md5_context *ctx)</div><div class="ttdoc">Initialize MD5 context. </div></div>
<div class="ttc" id="base64_8h_html"><div class="ttname"><a href="base64_8h.html">base64.h</a></div><div class="ttdoc">RFC 1521 base64 encoding/decoding. </div></div>
<div class="ttc" id="des_8h_html_ab300e183176d3e3b21af9452c75acb85"><div class="ttname"><a href="des_8h.html#ab300e183176d3e3b21af9452c75acb85">des_setkey_dec</a></div><div class="ttdeci">int des_setkey_dec(des_context *ctx, const unsigned char key[DES_KEY_SIZE])</div><div class="ttdoc">DES key schedule (56-bit, decryption) </div></div>
<div class="ttc" id="des_8h_html_a7ca3b464dc9e6cabf82f636101b6e133"><div class="ttname"><a href="des_8h.html#a7ca3b464dc9e6cabf82f636101b6e133">DES_DECRYPT</a></div><div class="ttdeci">#define DES_DECRYPT</div><div class="ttdef"><b>Definition:</b> <a href="des_8h_source.html#l00046">des.h:46</a></div></div>
<div class="ttc" id="aes_8h_html_a9ae37ee8cfabac5da5df9a573c34850f"><div class="ttname"><a href="aes_8h.html#a9ae37ee8cfabac5da5df9a573c34850f">aes_free</a></div><div class="ttdeci">void aes_free(aes_context *ctx)</div><div class="ttdoc">Clear AES context. </div></div>
<div class="ttc" id="cipher_8h_html_a806c82ed7e8b591dedc86093f38274e6a383bff04387b7fbb14fdf526688a87c4"><div class="ttname"><a href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6a383bff04387b7fbb14fdf526688a87c4">POLARSSL_CIPHER_AES_256_CBC</a></div><div class="ttdef"><b>Definition:</b> <a href="cipher_8h_source.html#l00090">cipher.h:90</a></div></div>
<div class="ttc" id="md5_8h_html_a960c10c0923005ebdbe8ae9d8f3e082e"><div class="ttname"><a href="md5_8h.html#a960c10c0923005ebdbe8ae9d8f3e082e">md5_update</a></div><div class="ttdeci">void md5_update(md5_context *ctx, const unsigned char *input, size_t ilen)</div><div class="ttdoc">MD5 process buffer. </div></div>
<div class="ttc" id="pem_8h_html_aba55809b3ae6781d4ab92ccdfbe54a9c"><div class="ttname"><a href="pem_8h.html#aba55809b3ae6781d4ab92ccdfbe54a9c">POLARSSL_ERR_PEM_NO_HEADER_FOOTER_PRESENT</a></div><div class="ttdeci">#define POLARSSL_ERR_PEM_NO_HEADER_FOOTER_PRESENT</div><div class="ttdoc">No PEM header or footer found. </div><div class="ttdef"><b>Definition:</b> <a href="pem_8h_source.html#l00038">pem.h:38</a></div></div>
<div class="ttc" id="md5_8h_html"><div class="ttname"><a href="md5_8h.html">md5.h</a></div><div class="ttdoc">MD5 message digest algorithm (hash function) </div></div>
<div class="ttc" id="pem_8h_html_ae178eb5fe3590fc7bb43c16ba1874c2f"><div class="ttname"><a href="pem_8h.html#ae178eb5fe3590fc7bb43c16ba1874c2f">POLARSSL_ERR_PEM_BAD_INPUT_DATA</a></div><div class="ttdeci">#define POLARSSL_ERR_PEM_BAD_INPUT_DATA</div><div class="ttdoc">Bad input parameters to function. </div><div class="ttdef"><b>Definition:</b> <a href="pem_8h_source.html#l00046">pem.h:46</a></div></div>
<div class="ttc" id="base64_8h_html_a8fac8bb4d3ed57b1beb10bf617664a1d"><div class="ttname"><a href="base64_8h.html#a8fac8bb4d3ed57b1beb10bf617664a1d">POLARSSL_ERR_BASE64_INVALID_CHARACTER</a></div><div class="ttdeci">#define POLARSSL_ERR_BASE64_INVALID_CHARACTER</div><div class="ttdoc">Invalid character in input. </div><div class="ttdef"><b>Definition:</b> <a href="base64_8h_source.html#l00033">base64.h:33</a></div></div>
<div class="ttc" id="aes_8h_html_afd6a37a98051a30f74418beb908d0ecd"><div class="ttname"><a href="aes_8h.html#afd6a37a98051a30f74418beb908d0ecd">aes_init</a></div><div class="ttdeci">void aes_init(aes_context *ctx)</div><div class="ttdoc">Initialize AES context. </div></div>
<div class="ttc" id="base64_8h_html_a7c33d8904e1ace023ffdebe04850f585"><div class="ttname"><a href="base64_8h.html#a7c33d8904e1ace023ffdebe04850f585">base64_encode</a></div><div class="ttdeci">int base64_encode(unsigned char *dst, size_t *dlen, const unsigned char *src, size_t slen)</div><div class="ttdoc">Encode a buffer into base64 format. </div></div>
<div class="ttc" id="cipher_8h_html_a806c82ed7e8b591dedc86093f38274e6ae6ab208bff4f88dbba3277a05686b0a9"><div class="ttname"><a href="cipher_8h.html#a806c82ed7e8b591dedc86093f38274e6ae6ab208bff4f88dbba3277a05686b0a9">POLARSSL_CIPHER_DES_EDE3_CBC</a></div><div class="ttdef"><b>Definition:</b> <a href="cipher_8h_source.html#l00120">cipher.h:120</a></div></div>
<div class="ttc" id="des_8h_html_ab632094bc0183a19d1108bcac3ec2ab2"><div class="ttname"><a href="des_8h.html#ab632094bc0183a19d1108bcac3ec2ab2">des3_crypt_cbc</a></div><div class="ttdeci">int des3_crypt_cbc(des3_context *ctx, int mode, size_t length, unsigned char iv[8], const unsigned char *input, unsigned char *output)</div><div class="ttdoc">3DES-CBC buffer encryption/decryption </div></div>
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