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<a href="gcm_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"> * NIST SP800-38D compliant GCM implementation</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="comment">/*</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * http://csrc.nist.gov/publications/nistpubs/800-38D/SP-800-38D.pdf</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * See also:</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * [MGV] http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-revised-spec.pdf</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * We use the algorithm described as Shoup's method with 4-bit tables in</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> * [MGV] 4.1, pp. 12-13, to enhance speed without using too much memory.</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#if !defined(POLARSSL_CONFIG_FILE)</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</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="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor"></span><span class="preprocessor">#include POLARSSL_CONFIG_FILE</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#if defined(POLARSSL_GCM_C)</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include "<a class="code" href="gcm_8h.html">polarssl/gcm.h</a>"</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#if defined(POLARSSL_AESNI_C)</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="aesni_8h.html">polarssl/aesni.h</a>"</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#if defined(POLARSSL_PLATFORM_C)</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</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="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor"></span><span class="preprocessor">#define polarssl_printf printf</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> * 32-bit integer manipulation macros (big endian)</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#ifndef GET_UINT32_BE</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor"></span><span class="preprocessor">#define GET_UINT32_BE(n,b,i) \</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">{ \</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor"> (n) = ( (uint32_t) (b)[(i) ] << 24 ) \</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor"> | ( (uint32_t) (b)[(i) + 1] << 16 ) \</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor"> | ( (uint32_t) (b)[(i) + 2] << 8 ) \</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor"> | ( (uint32_t) (b)[(i) + 3] ); \</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor">#ifndef PUT_UINT32_BE</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor"></span><span class="preprocessor">#define PUT_UINT32_BE(n,b,i) \</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor">{ \</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor"> (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor"> (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"> (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor"> (b)[(i) + 3] = (unsigned char) ( (n) ); \</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment">/* Implementation that should never be optimized out by the compiler */</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</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="l00081"></a><span class="lineno"> 81</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="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="comment">/*</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment"> * Precompute small multiples of H, that is set</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"> * HH[i] || HL[i] = H times i,</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment"> * where i is seen as a field element as in [MGV], ie high-order bits</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment"> * correspond to low powers of P. The result is stored in the same way, that</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"> * is the high-order bit of HH corresponds to P^0 and the low-order bit of HL</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment"> * corresponds to P^127.</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="keyword">static</span> <span class="keywordtype">int</span> gcm_gen_table( <a class="code" href="structgcm__context.html">gcm_context</a> *ctx )</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> {</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordtype">int</span> ret, i, j;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  uint64_t hi, lo;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  uint64_t vl, vh;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> h[16];</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordtype">size_t</span> olen = 0;</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  memset( h, 0, 16 );</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">if</span>( ( ret = <a class="code" href="cipher_8h.html#afca62e9b6e95da3a46fa6c95f0a09e38">cipher_update</a>( &ctx-><a class="code" href="structgcm__context.html#a79965b2636e2621a9673bf177d582b9a">cipher_ctx</a>, h, 16, h, &olen ) ) != 0 )</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">/* pack h as two 64-bits ints, big-endian */</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a37e0e1a97807195e2de54fd6487751d3">GET_UINT32_BE</a>( hi, h, 0 );</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a37e0e1a97807195e2de54fd6487751d3">GET_UINT32_BE</a>( lo, h, 4 );</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  vh = (uint64_t) hi << 32 | lo;</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="test__suite__aes_8cbc_8c.html#a37e0e1a97807195e2de54fd6487751d3">GET_UINT32_BE</a>( hi, h, 8 );</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a37e0e1a97807195e2de54fd6487751d3">GET_UINT32_BE</a>( lo, h, 12 );</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  vl = (uint64_t) hi << 32 | lo;</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>  <span class="comment">/* 8 = 1000 corresponds to 1 in GF(2^128) */</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  ctx-><a class="code" href="structgcm__context.html#ad8d8763f708c0d6637b4836a0b4d2e64">HL</a>[8] = vl;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  ctx-><a class="code" href="structgcm__context.html#a934c2a6dffb1763a50a2fa1dc5ca549f">HH</a>[8] = vh;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="preprocessor">#if defined(POLARSSL_AESNI_C) && defined(POLARSSL_HAVE_X86_64)</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="preprocessor"></span> <span class="comment">/* With CLMUL support, we need only h, not the rest of the table */</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">if</span>( aesni_supports( <a class="code" href="aesni_8h.html#a5835d24a13489804c4f9880468a292e2">POLARSSL_AESNI_CLMUL</a> ) )</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="comment">/* 0 corresponds to 0 in GF(2^128) */</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  ctx-><a class="code" href="structgcm__context.html#a934c2a6dffb1763a50a2fa1dc5ca549f">HH</a>[0] = 0;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  ctx-><a class="code" href="structgcm__context.html#ad8d8763f708c0d6637b4836a0b4d2e64">HL</a>[0] = 0;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">for</span>( i = 4; i > 0; i >>= 1 )</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>  uint32_t T = ( vl & 1 ) * 0xe1000000U;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  vl = ( vh << 63 ) | ( vl >> 1 );</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  vh = ( vh >> 1 ) ^ ( (uint64_t) T << 32);</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  ctx-><a class="code" href="structgcm__context.html#ad8d8763f708c0d6637b4836a0b4d2e64">HL</a>[i] = vl;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  ctx-><a class="code" href="structgcm__context.html#a934c2a6dffb1763a50a2fa1dc5ca549f">HH</a>[i] = vh;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  }</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">for</span>( i = 2; i < 16; i <<= 1 )</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  {</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  uint64_t *HiL = ctx-><a class="code" href="structgcm__context.html#ad8d8763f708c0d6637b4836a0b4d2e64">HL</a> + i, *HiH = ctx-><a class="code" href="structgcm__context.html#a934c2a6dffb1763a50a2fa1dc5ca549f">HH</a> + i;</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  vh = *HiH;</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  vl = *HiL;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">for</span>( j = 1; j < i; j++ )</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  {</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  HiH[j] = vh ^ ctx-><a class="code" href="structgcm__context.html#a934c2a6dffb1763a50a2fa1dc5ca549f">HH</a>[j];</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  HiL[j] = vl ^ ctx-><a class="code" href="structgcm__context.html#ad8d8763f708c0d6637b4836a0b4d2e64">HL</a>[j];</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  }</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> </div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> }</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="keywordtype">int</span> <a class="code" href="gcm_8h.html#aa51998d315ab0c99cff40bbe7dd7f200">gcm_init</a>( <a class="code" href="structgcm__context.html">gcm_context</a> *ctx, <a class="code" href="cipher_8h.html#a373f5d3a0a42c77ff4f5fe4fe7da0560">cipher_id_t</a> cipher, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *key,</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> keysize )</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> {</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordtype">int</span> ret;</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keyword">const</span> <a class="code" href="structcipher__info__t.html">cipher_info_t</a> *cipher_info;</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>  memset( ctx, 0, <span class="keyword">sizeof</span>(<a class="code" href="structgcm__context.html">gcm_context</a>) );</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <a class="code" href="cipher_8h.html#a6a719708dc3b2f0d0e7beadccf871f4f">cipher_init</a>( &ctx-><a class="code" href="structgcm__context.html#a79965b2636e2621a9673bf177d582b9a">cipher_ctx</a> );</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  cipher_info = <a class="code" href="cipher_8h.html#a68fd6a4ea2c236dc4abcad76d73d5cac">cipher_info_from_values</a>( cipher, keysize, <a class="code" href="cipher_8h.html#af65d0bd9b5c3504fd010cf54955b179caaefd6ed34c1992d638129e161b28084a">POLARSSL_MODE_ECB</a> );</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">if</span>( cipher_info == NULL )</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">return</span>( <a class="code" href="gcm_8h.html#a5dccf47b81f81ee37869f170613e8a91">POLARSSL_ERR_GCM_BAD_INPUT</a> );</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">if</span>( cipher_info-><a class="code" href="structcipher__info__t.html#a7e21795685c79613b5125ca608b0c63b">block_size</a> != 16 )</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">return</span>( <a class="code" href="gcm_8h.html#a5dccf47b81f81ee37869f170613e8a91">POLARSSL_ERR_GCM_BAD_INPUT</a> );</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">if</span>( ( ret = <a class="code" href="cipher_8h.html#adc7c37e925193805884085ca87587f64">cipher_init_ctx</a>( &ctx-><a class="code" href="structgcm__context.html#a79965b2636e2621a9673bf177d582b9a">cipher_ctx</a>, cipher_info ) ) != 0 )</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">return</span>( ret );</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>  <span class="keywordflow">if</span>( ( ret = <a class="code" href="cipher_8h.html#a77355bddf2d69f68d55e2bd2374e9257">cipher_setkey</a>( &ctx-><a class="code" href="structgcm__context.html#a79965b2636e2621a9673bf177d582b9a">cipher_ctx</a>, key, keysize,</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <a class="code" href="cipher_8h.html#a76a810650461f2062938ee9b82666b36ad8e41c0d381b23d7835dd322e511564f">POLARSSL_ENCRYPT</a> ) ) != 0 )</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  {</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  }</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">if</span>( ( ret = gcm_gen_table( ctx ) ) != 0 )</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> }</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</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="comment"> * Shoup's method for multiplication use this table with</span></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment"> * last4[x] = x times P^128</span></div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment"> * where x and last4[x] are seen as elements of GF(2^128) as in [MGV]</span></div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="keyword">static</span> <span class="keyword">const</span> uint64_t last4[16] =</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> {</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  0x0000, 0x1c20, 0x3840, 0x2460,</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  0x7080, 0x6ca0, 0x48c0, 0x54e0,</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  0xe100, 0xfd20, 0xd940, 0xc560,</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  0x9180, 0x8da0, 0xa9c0, 0xb5e0</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> </div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="comment"> * Sets output to x times H using the precomputed tables.</span></div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="comment"> * x and output are seen as elements of GF(2^128) as in [MGV].</span></div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="keyword">static</span> <span class="keywordtype">void</span> gcm_mult( <a class="code" href="structgcm__context.html">gcm_context</a> *ctx, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> x[16],</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> output[16] )</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> {</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordtype">int</span> i = 0;</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> lo, hi, rem;</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  uint64_t zh, zl;</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="preprocessor">#if defined(POLARSSL_AESNI_C) && defined(POLARSSL_HAVE_X86_64)</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="preprocessor"></span> <span class="keywordflow">if</span>( aesni_supports( <a class="code" href="aesni_8h.html#a5835d24a13489804c4f9880468a292e2">POLARSSL_AESNI_CLMUL</a> ) ) {</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> h[16];</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>  <a class="code" href="test__suite__aes_8cbc_8c.html#a4671795996d0aae650c87a82bca7b880">PUT_UINT32_BE</a>( ctx-><a class="code" href="structgcm__context.html#a934c2a6dffb1763a50a2fa1dc5ca549f">HH</a>[8] >> 32, h, 0 );</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a4671795996d0aae650c87a82bca7b880">PUT_UINT32_BE</a>( ctx-><a class="code" href="structgcm__context.html#a934c2a6dffb1763a50a2fa1dc5ca549f">HH</a>[8], h, 4 );</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a4671795996d0aae650c87a82bca7b880">PUT_UINT32_BE</a>( ctx-><a class="code" href="structgcm__context.html#ad8d8763f708c0d6637b4836a0b4d2e64">HL</a>[8] >> 32, h, 8 );</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a4671795996d0aae650c87a82bca7b880">PUT_UINT32_BE</a>( ctx-><a class="code" href="structgcm__context.html#ad8d8763f708c0d6637b4836a0b4d2e64">HL</a>[8], h, 12 );</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  aesni_gcm_mult( output, x, h );</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  }</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_AESNI_C && POLARSSL_HAVE_X86_64 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  lo = x[15] & 0xf;</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  hi = x[15] >> 4;</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  zh = ctx-><a class="code" href="structgcm__context.html#a934c2a6dffb1763a50a2fa1dc5ca549f">HH</a>[lo];</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  zl = ctx-><a class="code" href="structgcm__context.html#ad8d8763f708c0d6637b4836a0b4d2e64">HL</a>[lo];</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordflow">for</span>( i = 15; i >= 0; i-- )</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  {</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  lo = x[i] & 0xf;</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  hi = x[i] >> 4;</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">if</span>( i != 15 )</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  {</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  rem = (<span class="keywordtype">unsigned</span> char) zl & 0xf;</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  zl = ( zh << 60 ) | ( zl >> 4 );</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  zh = ( zh >> 4 );</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  zh ^= (uint64_t) last4[rem] << 48;</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  zh ^= ctx-><a class="code" href="structgcm__context.html#a934c2a6dffb1763a50a2fa1dc5ca549f">HH</a>[lo];</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  zl ^= ctx-><a class="code" href="structgcm__context.html#ad8d8763f708c0d6637b4836a0b4d2e64">HL</a>[lo];</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  }</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>  rem = (<span class="keywordtype">unsigned</span> char) zl & 0xf;</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  zl = ( zh << 60 ) | ( zl >> 4 );</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  zh = ( zh >> 4 );</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  zh ^= (uint64_t) last4[rem] << 48;</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  zh ^= ctx-><a class="code" href="structgcm__context.html#a934c2a6dffb1763a50a2fa1dc5ca549f">HH</a>[hi];</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  zl ^= ctx-><a class="code" href="structgcm__context.html#ad8d8763f708c0d6637b4836a0b4d2e64">HL</a>[hi];</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  }</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>  <a class="code" href="test__suite__aes_8cbc_8c.html#a4671795996d0aae650c87a82bca7b880">PUT_UINT32_BE</a>( zh >> 32, output, 0 );</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a4671795996d0aae650c87a82bca7b880">PUT_UINT32_BE</a>( zh, output, 4 );</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a4671795996d0aae650c87a82bca7b880">PUT_UINT32_BE</a>( zl >> 32, output, 8 );</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a4671795996d0aae650c87a82bca7b880">PUT_UINT32_BE</a>( zl, output, 12 );</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> }</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> <span class="keywordtype">int</span> <a class="code" href="gcm_8h.html#a44f5d26e87eda4ef3fd6ca33bdddc17a">gcm_starts</a>( <a class="code" href="structgcm__context.html">gcm_context</a> *ctx,</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordtype">int</span> mode,</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *iv,</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordtype">size_t</span> iv_len,</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *add,</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keywordtype">size_t</span> add_len )</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> {</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordtype">int</span> ret;</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> work_buf[16];</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keywordtype">size_t</span> i;</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *p;</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keywordtype">size_t</span> use_len, olen = 0;</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span> </div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="comment">/* IV and AD are limited to 2^64 bits, so 2^61 bytes */</span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keywordflow">if</span>( ( (uint64_t) iv_len ) >> 61 != 0 ||</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  ( (uint64_t) add_len ) >> 61 != 0 )</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">return</span>( <a class="code" href="gcm_8h.html#a5dccf47b81f81ee37869f170613e8a91">POLARSSL_ERR_GCM_BAD_INPUT</a> );</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> </div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  memset( ctx-><a class="code" href="structgcm__context.html#aef9b8dc7a1c219de0550a09031662ecf">y</a>, 0x00, <span class="keyword">sizeof</span>(ctx-><a class="code" href="structgcm__context.html#aef9b8dc7a1c219de0550a09031662ecf">y</a>) );</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  memset( ctx-><a class="code" href="structgcm__context.html#a8c2b92e4c44ca18ae7d50e2b886add0b">buf</a>, 0x00, <span class="keyword">sizeof</span>(ctx-><a class="code" href="structgcm__context.html#a8c2b92e4c44ca18ae7d50e2b886add0b">buf</a>) );</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> </div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  ctx-><a class="code" href="structgcm__context.html#aef8b995d4df128137da5c4e7f7211bc3">mode</a> = mode;</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  ctx-><a class="code" href="structgcm__context.html#a5a0d2cab13a86f13f604041c446d4845">len</a> = 0;</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  ctx-><a class="code" href="structgcm__context.html#a074ada6bd04ba63daedd5188cdcb7991">add_len</a> = 0;</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="keywordflow">if</span>( iv_len == 12 )</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  {</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  memcpy( ctx-><a class="code" href="structgcm__context.html#aef9b8dc7a1c219de0550a09031662ecf">y</a>, iv, iv_len );</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  ctx-><a class="code" href="structgcm__context.html#aef9b8dc7a1c219de0550a09031662ecf">y</a>[15] = 1;</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">else</span></div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  {</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  memset( work_buf, 0x00, 16 );</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a4671795996d0aae650c87a82bca7b880">PUT_UINT32_BE</a>( iv_len * 8, work_buf, 12 );</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> </div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  p = iv;</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordflow">while</span>( iv_len > 0 )</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  {</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  use_len = ( iv_len < 16 ) ? iv_len : 16;</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> </div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keywordflow">for</span>( i = 0; i < use_len; i++ )</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  ctx-><a class="code" href="structgcm__context.html#aef9b8dc7a1c219de0550a09031662ecf">y</a>[i] ^= p[i];</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>  gcm_mult( ctx, ctx-><a class="code" href="structgcm__context.html#aef9b8dc7a1c219de0550a09031662ecf">y</a>, ctx-><a class="code" href="structgcm__context.html#aef9b8dc7a1c219de0550a09031662ecf">y</a> );</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>  iv_len -= use_len;</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  p += use_len;</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  }</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> </div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordflow">for</span>( i = 0; i < 16; i++ )</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  ctx-><a class="code" href="structgcm__context.html#aef9b8dc7a1c219de0550a09031662ecf">y</a>[i] ^= work_buf[i];</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  gcm_mult( ctx, ctx-><a class="code" href="structgcm__context.html#aef9b8dc7a1c219de0550a09031662ecf">y</a>, ctx-><a class="code" href="structgcm__context.html#aef9b8dc7a1c219de0550a09031662ecf">y</a> );</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  }</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> </div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">if</span>( ( ret = <a class="code" href="cipher_8h.html#afca62e9b6e95da3a46fa6c95f0a09e38">cipher_update</a>( &ctx-><a class="code" href="structgcm__context.html#a79965b2636e2621a9673bf177d582b9a">cipher_ctx</a>, ctx-><a class="code" href="structgcm__context.html#aef9b8dc7a1c219de0550a09031662ecf">y</a>, 16, ctx-><a class="code" href="structgcm__context.html#a8c5e7f00c665595616a123b119e5f6f2">base_ectr</a>,</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  &olen ) ) != 0 )</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  {</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  }</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> </div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  ctx-><a class="code" href="structgcm__context.html#a074ada6bd04ba63daedd5188cdcb7991">add_len</a> = add_len;</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  p = add;</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keywordflow">while</span>( add_len > 0 )</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>  use_len = ( add_len < 16 ) ? add_len : 16;</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> </div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordflow">for</span>( i = 0; i < use_len; i++ )</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  ctx-><a class="code" href="structgcm__context.html#a8c2b92e4c44ca18ae7d50e2b886add0b">buf</a>[i] ^= p[i];</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>  gcm_mult( ctx, ctx-><a class="code" href="structgcm__context.html#a8c2b92e4c44ca18ae7d50e2b886add0b">buf</a>, ctx-><a class="code" href="structgcm__context.html#a8c2b92e4c44ca18ae7d50e2b886add0b">buf</a> );</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> </div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  add_len -= use_len;</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  p += use_len;</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  }</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="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span> }</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> </div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="keywordtype">int</span> <a class="code" href="gcm_8h.html#ac27c1ae819964e256ad31076bf8be0ac">gcm_update</a>( <a class="code" href="structgcm__context.html">gcm_context</a> *ctx,</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keywordtype">size_t</span> length,</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *input,</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *output )</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="keywordtype">int</span> ret;</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> ectr[16];</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordtype">size_t</span> i;</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *p;</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *out_p = output;</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keywordtype">size_t</span> use_len, olen = 0;</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span> </div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keywordflow">if</span>( output > input && (<span class="keywordtype">size_t</span>) ( output - input ) < length )</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="keywordflow">return</span>( <a class="code" href="gcm_8h.html#a5dccf47b81f81ee37869f170613e8a91">POLARSSL_ERR_GCM_BAD_INPUT</a> );</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span> </div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="comment">/* Total length is restricted to 2^39 - 256 bits, ie 2^36 - 2^5 bytes</span></div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span> <span class="comment"> * Also check for possible overflow */</span></div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keywordflow">if</span>( ctx-><a class="code" href="structgcm__context.html#a5a0d2cab13a86f13f604041c446d4845">len</a> + length < ctx->len ||</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  (uint64_t) ctx-><a class="code" href="structgcm__context.html#a5a0d2cab13a86f13f604041c446d4845">len</a> + length > 0x03FFFFE0llu )</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  {</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keywordflow">return</span>( <a class="code" href="gcm_8h.html#a5dccf47b81f81ee37869f170613e8a91">POLARSSL_ERR_GCM_BAD_INPUT</a> );</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  }</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> </div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  ctx-><a class="code" href="structgcm__context.html#a5a0d2cab13a86f13f604041c446d4845">len</a> += length;</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> </div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  p = input;</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">while</span>( length > 0 )</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  {</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  use_len = ( length < 16 ) ? length : 16;</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> </div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordflow">for</span>( i = 16; i > 12; i-- )</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordflow">if</span>( ++ctx-><a class="code" href="structgcm__context.html#aef9b8dc7a1c219de0550a09031662ecf">y</a>[i - 1] != 0 )</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> </div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keywordflow">if</span>( ( ret = <a class="code" href="cipher_8h.html#afca62e9b6e95da3a46fa6c95f0a09e38">cipher_update</a>( &ctx-><a class="code" href="structgcm__context.html#a79965b2636e2621a9673bf177d582b9a">cipher_ctx</a>, ctx-><a class="code" href="structgcm__context.html#aef9b8dc7a1c219de0550a09031662ecf">y</a>, 16, ectr,</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  &olen ) ) != 0 )</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  {</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="keywordflow">return</span>( ret );</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> </div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="keywordflow">for</span>( i = 0; i < use_len; i++ )</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">if</span>( ctx-><a class="code" href="structgcm__context.html#aef8b995d4df128137da5c4e7f7211bc3">mode</a> == <a class="code" href="gcm_8h.html#a65cecb8f0fb02b51814bfbbae65fdd9c">GCM_DECRYPT</a> )</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  ctx-><a class="code" href="structgcm__context.html#a8c2b92e4c44ca18ae7d50e2b886add0b">buf</a>[i] ^= p[i];</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  out_p[i] = ectr[i] ^ p[i];</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keywordflow">if</span>( ctx-><a class="code" href="structgcm__context.html#aef8b995d4df128137da5c4e7f7211bc3">mode</a> == <a class="code" href="gcm_8h.html#a9ec162612f0f3a8b7e380c02ffc35867">GCM_ENCRYPT</a> )</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  ctx-><a class="code" href="structgcm__context.html#a8c2b92e4c44ca18ae7d50e2b886add0b">buf</a>[i] ^= out_p[i];</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  }</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span> </div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  gcm_mult( ctx, ctx-><a class="code" href="structgcm__context.html#a8c2b92e4c44ca18ae7d50e2b886add0b">buf</a>, ctx-><a class="code" href="structgcm__context.html#a8c2b92e4c44ca18ae7d50e2b886add0b">buf</a> );</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span> </div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  length -= use_len;</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  p += use_len;</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  out_p += use_len;</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  }</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> </div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> }</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> <a class="code" href="gcm_8h.html#a6544ce0fa5390ced146b041cfa8a4f88">gcm_finish</a>( <a class="code" href="structgcm__context.html">gcm_context</a> *ctx,</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *tag,</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="keywordtype">size_t</span> tag_len )</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>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> work_buf[16];</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="keywordtype">size_t</span> i;</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  uint64_t orig_len = ctx-><a class="code" href="structgcm__context.html#a5a0d2cab13a86f13f604041c446d4845">len</a> * 8;</div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  uint64_t orig_add_len = ctx-><a class="code" href="structgcm__context.html#a074ada6bd04ba63daedd5188cdcb7991">add_len</a> * 8;</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>  <span class="keywordflow">if</span>( tag_len > 16 || tag_len < 4 )</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">return</span>( <a class="code" href="gcm_8h.html#a5dccf47b81f81ee37869f170613e8a91">POLARSSL_ERR_GCM_BAD_INPUT</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>  <span class="keywordflow">if</span>( tag_len != 0 )</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  memcpy( tag, ctx-><a class="code" href="structgcm__context.html#a8c5e7f00c665595616a123b119e5f6f2">base_ectr</a>, tag_len );</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span> </div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keywordflow">if</span>( orig_len || orig_add_len )</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  {</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  memset( work_buf, 0x00, 16 );</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#a4671795996d0aae650c87a82bca7b880">PUT_UINT32_BE</a>( ( orig_add_len >> 32 ), work_buf, 0 );</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a4671795996d0aae650c87a82bca7b880">PUT_UINT32_BE</a>( ( orig_add_len ), work_buf, 4 );</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a4671795996d0aae650c87a82bca7b880">PUT_UINT32_BE</a>( ( orig_len >> 32 ), work_buf, 8 );</div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#a4671795996d0aae650c87a82bca7b880">PUT_UINT32_BE</a>( ( orig_len ), work_buf, 12 );</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span> </div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keywordflow">for</span>( i = 0; i < 16; i++ )</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  ctx-><a class="code" href="structgcm__context.html#a8c2b92e4c44ca18ae7d50e2b886add0b">buf</a>[i] ^= work_buf[i];</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>  gcm_mult( ctx, ctx-><a class="code" href="structgcm__context.html#a8c2b92e4c44ca18ae7d50e2b886add0b">buf</a>, ctx-><a class="code" href="structgcm__context.html#a8c2b92e4c44ca18ae7d50e2b886add0b">buf</a> );</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>  <span class="keywordflow">for</span>( i = 0; i < tag_len; i++ )</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  tag[i] ^= ctx-><a class="code" href="structgcm__context.html#a8c2b92e4c44ca18ae7d50e2b886add0b">buf</a>[i];</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  }</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span> </div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</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> <span class="keywordtype">int</span> <a class="code" href="gcm_8h.html#ad87f8fd2a45b5b32c545443779c48c2d">gcm_crypt_and_tag</a>( <a class="code" href="structgcm__context.html">gcm_context</a> *ctx,</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keywordtype">int</span> mode,</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="keywordtype">size_t</span> length,</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *iv,</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="keywordtype">size_t</span> iv_len,</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *add,</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keywordtype">size_t</span> add_len,</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *input,</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *output,</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordtype">size_t</span> tag_len,</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *tag )</div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span> {</div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordtype">int</span> ret;</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span> </div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="keywordflow">if</span>( ( ret = <a class="code" href="gcm_8h.html#a44f5d26e87eda4ef3fd6ca33bdddc17a">gcm_starts</a>( ctx, mode, iv, iv_len, add, add_len ) ) != 0 )</div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span> </div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="keywordflow">if</span>( ( ret = <a class="code" href="gcm_8h.html#ac27c1ae819964e256ad31076bf8be0ac">gcm_update</a>( ctx, length, input, output ) ) != 0 )</div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span> </div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="keywordflow">if</span>( ( ret = <a class="code" href="gcm_8h.html#a6544ce0fa5390ced146b041cfa8a4f88">gcm_finish</a>( ctx, tag, tag_len ) ) != 0 )</div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span> </div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span> }</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span> </div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span> <span class="keywordtype">int</span> <a class="code" href="gcm_8h.html#a61dae452f29231fe46c1bacee4c60e72">gcm_auth_decrypt</a>( <a class="code" href="structgcm__context.html">gcm_context</a> *ctx,</div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="keywordtype">size_t</span> length,</div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *iv,</div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keywordtype">size_t</span> iv_len,</div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *add,</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <span class="keywordtype">size_t</span> add_len,</div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *tag,</div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <span class="keywordtype">size_t</span> tag_len,</div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *input,</div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *output )</div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span> {</div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <span class="keywordtype">int</span> ret;</div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> check_tag[16];</div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keywordtype">size_t</span> i;</div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <span class="keywordtype">int</span> diff;</div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span> </div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keywordflow">if</span>( ( ret = <a class="code" href="gcm_8h.html#ad87f8fd2a45b5b32c545443779c48c2d">gcm_crypt_and_tag</a>( ctx, <a class="code" href="gcm_8h.html#a65cecb8f0fb02b51814bfbbae65fdd9c">GCM_DECRYPT</a>, length,</div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  iv, iv_len, add, add_len,</div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  input, output, tag_len, check_tag ) ) != 0 )</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  {</div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  }</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span> </div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="comment">/* Check tag in "constant-time" */</span></div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="keywordflow">for</span>( diff = 0, i = 0; i < tag_len; i++ )</div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  diff |= tag[i] ^ check_tag[i];</div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> </div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  <span class="keywordflow">if</span>( diff != 0 )</div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  {</div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  polarssl_zeroize( output, length );</div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="keywordflow">return</span>( <a class="code" href="gcm_8h.html#a489a0823c71a0855d61f649bd1c7f4b0">POLARSSL_ERR_GCM_AUTH_FAILED</a> );</div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  }</div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span> </div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span> }</div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span> </div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="keywordtype">void</span> <a class="code" href="gcm_8h.html#a087a5c5e531806928a57f465447bc6f5">gcm_free</a>( <a class="code" href="structgcm__context.html">gcm_context</a> *ctx )</div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span> {</div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <a class="code" href="cipher_8h.html#af27f8e4cd1fab59615c3d73c69d136c8">cipher_free</a>( &ctx-><a class="code" href="structgcm__context.html#a79965b2636e2621a9673bf177d582b9a">cipher_ctx</a> );</div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  polarssl_zeroize( ctx, <span class="keyword">sizeof</span>( <a class="code" href="structgcm__context.html">gcm_context</a> ) );</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span> }</div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span> </div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="preprocessor">#if defined(POLARSSL_SELF_TEST) && defined(POLARSSL_AES_C)</span></div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span> <span class="preprocessor">#include <stdio.h></span></div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span> </div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span> <span class="comment"> * AES-GCM test vectors from:</span></div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span> <span class="comment"> * http://csrc.nist.gov/groups/STM/cavp/documents/mac/gcmtestvectors.zip</span></div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span> <span class="preprocessor">#define MAX_TESTS 6</span></div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span> <span class="keywordtype">int</span> key_index[MAX_TESTS] =</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  { 0, 0, 1, 1, 1, 1 };</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span> </div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> key[MAX_TESTS][32] =</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span> {</div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,</div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,</div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,</div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  { 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,</div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08,</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08 },</div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span> };</div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span> </div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span> <span class="keywordtype">size_t</span> iv_len[MAX_TESTS] =</div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  { 12, 12, 12, 12, 8, 60 };</div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span> </div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span> <span class="keywordtype">int</span> iv_index[MAX_TESTS] =</div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  { 0, 0, 1, 1, 1, 2 };</div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span> </div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> iv[MAX_TESTS][64] =</div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span> {</div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,</div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  0x00, 0x00, 0x00, 0x00 },</div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  { 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad,</div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  0xde, 0xca, 0xf8, 0x88 },</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  { 0x93, 0x13, 0x22, 0x5d, 0xf8, 0x84, 0x06, 0xe5,</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  0x55, 0x90, 0x9c, 0x5a, 0xff, 0x52, 0x69, 0xaa,</div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  0x6a, 0x7a, 0x95, 0x38, 0x53, 0x4f, 0x7d, 0xa1,</div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  0xe4, 0xc3, 0x03, 0xd2, 0xa3, 0x18, 0xa7, 0x28,</div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  0xc3, 0xc0, 0xc9, 0x51, 0x56, 0x80, 0x95, 0x39,</div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  0xfc, 0xf0, 0xe2, 0x42, 0x9a, 0x6b, 0x52, 0x54,</div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  0x16, 0xae, 0xdb, 0xf5, 0xa0, 0xde, 0x6a, 0x57,</div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  0xa6, 0x37, 0xb3, 0x9b },</div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span> };</div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span> </div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span> <span class="keywordtype">size_t</span> add_len[MAX_TESTS] =</div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  { 0, 0, 0, 20, 20, 20 };</div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span> </div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span> <span class="keywordtype">int</span> add_index[MAX_TESTS] =</div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  { 0, 0, 0, 1, 1, 1 };</div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span> </div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> additional[MAX_TESTS][64] =</div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span> {</div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  { 0x00 },</div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  { 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,</div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,</div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  0xab, 0xad, 0xda, 0xd2 },</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span> };</div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span> </div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span> <span class="keywordtype">size_t</span> pt_len[MAX_TESTS] =</div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  { 0, 16, 64, 60, 60, 60 };</div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span> </div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span> <span class="keywordtype">int</span> pt_index[MAX_TESTS] =</div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  { 0, 0, 1, 1, 1, 1 };</div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span> </div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> pt[MAX_TESTS][64] =</div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span> {</div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,</div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },</div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  { 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,</div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,</div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,</div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,</div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,</div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,</div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,</div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55 },</div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span> };</div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span> </div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> ct[MAX_TESTS * 3][64] =</div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span> {</div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  { 0x00 },</div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  { 0x03, 0x88, 0xda, 0xce, 0x60, 0xb6, 0xa3, 0x92,</div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  0xf3, 0x28, 0xc2, 0xb9, 0x71, 0xb2, 0xfe, 0x78 },</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  { 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,</div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,</div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,</div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,</div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,</div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,</div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,</div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  0x3d, 0x58, 0xe0, 0x91, 0x47, 0x3f, 0x59, 0x85 },</div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  { 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,</div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,</div>
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,</div>
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,</div>
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,</div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,</div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,</div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  0x3d, 0x58, 0xe0, 0x91 },</div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  { 0x61, 0x35, 0x3b, 0x4c, 0x28, 0x06, 0x93, 0x4a,</div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  0x77, 0x7f, 0xf5, 0x1f, 0xa2, 0x2a, 0x47, 0x55,</div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  0x69, 0x9b, 0x2a, 0x71, 0x4f, 0xcd, 0xc6, 0xf8,</div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  0x37, 0x66, 0xe5, 0xf9, 0x7b, 0x6c, 0x74, 0x23,</div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  0x73, 0x80, 0x69, 0x00, 0xe4, 0x9f, 0x24, 0xb2,</div>
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  0x2b, 0x09, 0x75, 0x44, 0xd4, 0x89, 0x6b, 0x42,</div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  0x49, 0x89, 0xb5, 0xe1, 0xeb, 0xac, 0x0f, 0x07,</div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  0xc2, 0x3f, 0x45, 0x98 },</div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  { 0x8c, 0xe2, 0x49, 0x98, 0x62, 0x56, 0x15, 0xb6,</div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  0x03, 0xa0, 0x33, 0xac, 0xa1, 0x3f, 0xb8, 0x94,</div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  0xbe, 0x91, 0x12, 0xa5, 0xc3, 0xa2, 0x11, 0xa8,</div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  0xba, 0x26, 0x2a, 0x3c, 0xca, 0x7e, 0x2c, 0xa7,</div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  0x01, 0xe4, 0xa9, 0xa4, 0xfb, 0xa4, 0x3c, 0x90,</div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  0xcc, 0xdc, 0xb2, 0x81, 0xd4, 0x8c, 0x7c, 0x6f,</div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  0xd6, 0x28, 0x75, 0xd2, 0xac, 0xa4, 0x17, 0x03,</div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  0x4c, 0x34, 0xae, 0xe5 },</div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  { 0x00 },</div>
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  { 0x98, 0xe7, 0x24, 0x7c, 0x07, 0xf0, 0xfe, 0x41,</div>
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  0x1c, 0x26, 0x7e, 0x43, 0x84, 0xb0, 0xf6, 0x00 },</div>
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  { 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,</div>
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57,</div>
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,</div>
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c,</div>
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25,</div>
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47,</div>
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,</div>
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  0xcc, 0xda, 0x27, 0x10, 0xac, 0xad, 0xe2, 0x56 },</div>
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  { 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,</div>
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57,</div>
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,</div>
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c,</div>
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25,</div>
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47,</div>
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,</div>
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  0xcc, 0xda, 0x27, 0x10 },</div>
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  { 0x0f, 0x10, 0xf5, 0x99, 0xae, 0x14, 0xa1, 0x54,</div>
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  0xed, 0x24, 0xb3, 0x6e, 0x25, 0x32, 0x4d, 0xb8,</div>
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  0xc5, 0x66, 0x63, 0x2e, 0xf2, 0xbb, 0xb3, 0x4f,</div>
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  0x83, 0x47, 0x28, 0x0f, 0xc4, 0x50, 0x70, 0x57,</div>
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  0xfd, 0xdc, 0x29, 0xdf, 0x9a, 0x47, 0x1f, 0x75,</div>
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  0xc6, 0x65, 0x41, 0xd4, 0xd4, 0xda, 0xd1, 0xc9,</div>
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  0xe9, 0x3a, 0x19, 0xa5, 0x8e, 0x8b, 0x47, 0x3f,</div>
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  0xa0, 0xf0, 0x62, 0xf7 },</div>
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  { 0xd2, 0x7e, 0x88, 0x68, 0x1c, 0xe3, 0x24, 0x3c,</div>
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  0x48, 0x30, 0x16, 0x5a, 0x8f, 0xdc, 0xf9, 0xff,</div>
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  0x1d, 0xe9, 0xa1, 0xd8, 0xe6, 0xb4, 0x47, 0xef,</div>
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  0x6e, 0xf7, 0xb7, 0x98, 0x28, 0x66, 0x6e, 0x45,</div>
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  0x81, 0xe7, 0x90, 0x12, 0xaf, 0x34, 0xdd, 0xd9,</div>
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  0xe2, 0xf0, 0x37, 0x58, 0x9b, 0x29, 0x2d, 0xb3,</div>
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  0xe6, 0x7c, 0x03, 0x67, 0x45, 0xfa, 0x22, 0xe7,</div>
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  0xe9, 0xb7, 0x37, 0x3b },</div>
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  { 0x00 },</div>
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  { 0xce, 0xa7, 0x40, 0x3d, 0x4d, 0x60, 0x6b, 0x6e,</div>
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  0x07, 0x4e, 0xc5, 0xd3, 0xba, 0xf3, 0x9d, 0x18 },</div>
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  { 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07,</div>
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,</div>
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9,</div>
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa,</div>
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d,</div>
<div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38,</div>
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a,</div>
<div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  0xbc, 0xc9, 0xf6, 0x62, 0x89, 0x80, 0x15, 0xad },</div>
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  { 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07,</div>
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,</div>
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9,</div>
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa,</div>
<div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d,</div>
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38,</div>
<div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a,</div>
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  0xbc, 0xc9, 0xf6, 0x62 },</div>
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  { 0xc3, 0x76, 0x2d, 0xf1, 0xca, 0x78, 0x7d, 0x32,</div>
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  0xae, 0x47, 0xc1, 0x3b, 0xf1, 0x98, 0x44, 0xcb,</div>
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  0xaf, 0x1a, 0xe1, 0x4d, 0x0b, 0x97, 0x6a, 0xfa,</div>
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  0xc5, 0x2f, 0xf7, 0xd7, 0x9b, 0xba, 0x9d, 0xe0,</div>
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  0xfe, 0xb5, 0x82, 0xd3, 0x39, 0x34, 0xa4, 0xf0,</div>
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  0x95, 0x4c, 0xc2, 0x36, 0x3b, 0xc7, 0x3f, 0x78,</div>
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  0x62, 0xac, 0x43, 0x0e, 0x64, 0xab, 0xe4, 0x99,</div>
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  0xf4, 0x7c, 0x9b, 0x1f },</div>
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  { 0x5a, 0x8d, 0xef, 0x2f, 0x0c, 0x9e, 0x53, 0xf1,</div>
<div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  0xf7, 0x5d, 0x78, 0x53, 0x65, 0x9e, 0x2a, 0x20,</div>
<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  0xee, 0xb2, 0xb2, 0x2a, 0xaf, 0xde, 0x64, 0x19,</div>
<div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  0xa0, 0x58, 0xab, 0x4f, 0x6f, 0x74, 0x6b, 0xf4,</div>
<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  0x0f, 0xc0, 0xc3, 0xb7, 0x80, 0xf2, 0x44, 0x45,</div>
<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  0x2d, 0xa3, 0xeb, 0xf1, 0xc5, 0xd8, 0x2c, 0xde,</div>
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  0xa2, 0x41, 0x89, 0x97, 0x20, 0x0e, 0xf8, 0x2e,</div>
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  0x44, 0xae, 0x7e, 0x3f },</div>
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span> };</div>
<div class="line"><a name="l00692"></a><span class="lineno"> 692</span> </div>
<div class="line"><a name="l00693"></a><span class="lineno"> 693</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> tag[MAX_TESTS * 3][16] =</div>
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span> {</div>
<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  { 0x58, 0xe2, 0xfc, 0xce, 0xfa, 0x7e, 0x30, 0x61,</div>
<div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  0x36, 0x7f, 0x1d, 0x57, 0xa4, 0xe7, 0x45, 0x5a },</div>
<div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  { 0xab, 0x6e, 0x47, 0xd4, 0x2c, 0xec, 0x13, 0xbd,</div>
<div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  0xf5, 0x3a, 0x67, 0xb2, 0x12, 0x57, 0xbd, 0xdf },</div>
<div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  { 0x4d, 0x5c, 0x2a, 0xf3, 0x27, 0xcd, 0x64, 0xa6,</div>
<div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  0x2c, 0xf3, 0x5a, 0xbd, 0x2b, 0xa6, 0xfa, 0xb4 },</div>
<div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  { 0x5b, 0xc9, 0x4f, 0xbc, 0x32, 0x21, 0xa5, 0xdb,</div>
<div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  0x94, 0xfa, 0xe9, 0x5a, 0xe7, 0x12, 0x1a, 0x47 },</div>
<div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  { 0x36, 0x12, 0xd2, 0xe7, 0x9e, 0x3b, 0x07, 0x85,</div>
<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  0x56, 0x1b, 0xe1, 0x4a, 0xac, 0xa2, 0xfc, 0xcb },</div>
<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  { 0x61, 0x9c, 0xc5, 0xae, 0xff, 0xfe, 0x0b, 0xfa,</div>
<div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  0x46, 0x2a, 0xf4, 0x3c, 0x16, 0x99, 0xd0, 0x50 },</div>
<div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  { 0xcd, 0x33, 0xb2, 0x8a, 0xc7, 0x73, 0xf7, 0x4b,</div>
<div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  0xa0, 0x0e, 0xd1, 0xf3, 0x12, 0x57, 0x24, 0x35 },</div>
<div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  { 0x2f, 0xf5, 0x8d, 0x80, 0x03, 0x39, 0x27, 0xab,</div>
<div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  0x8e, 0xf4, 0xd4, 0x58, 0x75, 0x14, 0xf0, 0xfb },</div>
<div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  { 0x99, 0x24, 0xa7, 0xc8, 0x58, 0x73, 0x36, 0xbf,</div>
<div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  0xb1, 0x18, 0x02, 0x4d, 0xb8, 0x67, 0x4a, 0x14 },</div>
<div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  { 0x25, 0x19, 0x49, 0x8e, 0x80, 0xf1, 0x47, 0x8f,</div>
<div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  0x37, 0xba, 0x55, 0xbd, 0x6d, 0x27, 0x61, 0x8c },</div>
<div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  { 0x65, 0xdc, 0xc5, 0x7f, 0xcf, 0x62, 0x3a, 0x24,</div>
<div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  0x09, 0x4f, 0xcc, 0xa4, 0x0d, 0x35, 0x33, 0xf8 },</div>
<div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  { 0xdc, 0xf5, 0x66, 0xff, 0x29, 0x1c, 0x25, 0xbb,</div>
<div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  0xb8, 0x56, 0x8f, 0xc3, 0xd3, 0x76, 0xa6, 0xd9 },</div>
<div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  { 0x53, 0x0f, 0x8a, 0xfb, 0xc7, 0x45, 0x36, 0xb9,</div>
<div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  0xa9, 0x63, 0xb4, 0xf1, 0xc4, 0xcb, 0x73, 0x8b },</div>
<div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  { 0xd0, 0xd1, 0xc8, 0xa7, 0x99, 0x99, 0x6b, 0xf0,</div>
<div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  0x26, 0x5b, 0x98, 0xb5, 0xd4, 0x8a, 0xb9, 0x19 },</div>
<div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  { 0xb0, 0x94, 0xda, 0xc5, 0xd9, 0x34, 0x71, 0xbd,</div>
<div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  0xec, 0x1a, 0x50, 0x22, 0x70, 0xe3, 0xcc, 0x6c },</div>
<div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  { 0x76, 0xfc, 0x6e, 0xce, 0x0f, 0x4e, 0x17, 0x68,</div>
<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  0xcd, 0xdf, 0x88, 0x53, 0xbb, 0x2d, 0x55, 0x1b },</div>
<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  { 0x3a, 0x33, 0x7d, 0xbf, 0x46, 0xa7, 0x92, 0xc4,</div>
<div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  0x5e, 0x45, 0x49, 0x13, 0xfe, 0x2e, 0xa8, 0xf2 },</div>
<div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  { 0xa4, 0x4a, 0x82, 0x66, 0xee, 0x1c, 0x8e, 0xb0,</div>
<div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  0xc8, 0xb5, 0xd4, 0xcf, 0x5a, 0xe9, 0xf1, 0x9a },</div>
<div class="line"><a name="l00731"></a><span class="lineno"> 731</span> };</div>
<div class="line"><a name="l00732"></a><span class="lineno"> 732</span> </div>
<div class="line"><a name="l00733"></a><span class="lineno"> 733</span> <span class="keywordtype">int</span> <a class="code" href="gcm_8h.html#a63019d9ec7edd51b02793cdade88054a">gcm_self_test</a>( <span class="keywordtype">int</span> verbose )</div>
<div class="line"><a name="l00734"></a><span class="lineno"> 734</span> {</div>
<div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  <a class="code" href="structgcm__context.html">gcm_context</a> ctx;</div>
<div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> buf[64];</div>
<div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> tag_buf[16];</div>
<div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  <span class="keywordtype">int</span> i, j, ret;</div>
<div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  <a class="code" href="cipher_8h.html#a373f5d3a0a42c77ff4f5fe4fe7da0560">cipher_id_t</a> cipher = <a class="code" href="cipher_8h.html#a373f5d3a0a42c77ff4f5fe4fe7da0560a7f2185b07190a2ea88e864155bbec21d">POLARSSL_CIPHER_ID_AES</a>;</div>
<div class="line"><a name="l00740"></a><span class="lineno"> 740</span> </div>
<div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <span class="keywordflow">for</span>( j = 0; j < 3; j++ )</div>
<div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  {</div>
<div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  <span class="keywordtype">int</span> key_len = 128 + 64 * j;</div>
<div class="line"><a name="l00744"></a><span class="lineno"> 744</span> </div>
<div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  <span class="keywordflow">for</span>( i = 0; i < MAX_TESTS; i++ )</div>
<div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  {</div>
<div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">" AES-GCM-%3d #%d (%s): "</span>,</div>
<div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  key_len, i, <span class="stringliteral">"enc"</span> );</div>
<div class="line"><a name="l00750"></a><span class="lineno"> 750</span> </div>
<div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  <a class="code" href="gcm_8h.html#aa51998d315ab0c99cff40bbe7dd7f200">gcm_init</a>( &ctx, cipher, key[key_index[i]], key_len );</div>
<div class="line"><a name="l00752"></a><span class="lineno"> 752</span> </div>
<div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  ret = <a class="code" href="gcm_8h.html#ad87f8fd2a45b5b32c545443779c48c2d">gcm_crypt_and_tag</a>( &ctx, <a class="code" href="gcm_8h.html#a9ec162612f0f3a8b7e380c02ffc35867">GCM_ENCRYPT</a>,</div>
<div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  pt_len[i],</div>
<div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  iv[iv_index[i]], iv_len[i],</div>
<div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  additional[add_index[i]], add_len[i],</div>
<div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  pt[pt_index[i]], buf, 16, tag_buf );</div>
<div class="line"><a name="l00758"></a><span class="lineno"> 758</span> </div>
<div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  <span class="keywordflow">if</span>( ret != 0 ||</div>
<div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 ||</div>
<div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )</div>
<div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  {</div>
<div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"failed\n"</span> );</div>
<div class="line"><a name="l00765"></a><span class="lineno"> 765</span> </div>
<div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  }</div>
<div class="line"><a name="l00768"></a><span class="lineno"> 768</span> </div>
<div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  <a class="code" href="gcm_8h.html#a087a5c5e531806928a57f465447bc6f5">gcm_free</a>( &ctx );</div>
<div class="line"><a name="l00770"></a><span class="lineno"> 770</span> </div>
<div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"passed\n"</span> );</div>
<div class="line"><a name="l00773"></a><span class="lineno"> 773</span> </div>
<div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">" AES-GCM-%3d #%d (%s): "</span>,</div>
<div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  key_len, i, <span class="stringliteral">"dec"</span> );</div>
<div class="line"><a name="l00777"></a><span class="lineno"> 777</span> </div>
<div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  <a class="code" href="gcm_8h.html#aa51998d315ab0c99cff40bbe7dd7f200">gcm_init</a>( &ctx, cipher, key[key_index[i]], key_len );</div>
<div class="line"><a name="l00779"></a><span class="lineno"> 779</span> </div>
<div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  ret = <a class="code" href="gcm_8h.html#ad87f8fd2a45b5b32c545443779c48c2d">gcm_crypt_and_tag</a>( &ctx, <a class="code" href="gcm_8h.html#a65cecb8f0fb02b51814bfbbae65fdd9c">GCM_DECRYPT</a>,</div>
<div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  pt_len[i],</div>
<div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  iv[iv_index[i]], iv_len[i],</div>
<div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  additional[add_index[i]], add_len[i],</div>
<div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  ct[j * 6 + i], buf, 16, tag_buf );</div>
<div class="line"><a name="l00785"></a><span class="lineno"> 785</span> </div>
<div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  <span class="keywordflow">if</span>( ret != 0 ||</div>
<div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 ||</div>
<div class="line"><a name="l00788"></a><span class="lineno"> 788</span>  memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )</div>
<div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  {</div>
<div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"failed\n"</span> );</div>
<div class="line"><a name="l00792"></a><span class="lineno"> 792</span> </div>
<div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  }</div>
<div class="line"><a name="l00795"></a><span class="lineno"> 795</span> </div>
<div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  <a class="code" href="gcm_8h.html#a087a5c5e531806928a57f465447bc6f5">gcm_free</a>( &ctx );</div>
<div class="line"><a name="l00797"></a><span class="lineno"> 797</span> </div>
<div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"passed\n"</span> );</div>
<div class="line"><a name="l00800"></a><span class="lineno"> 800</span> </div>
<div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">" AES-GCM-%3d #%d split (%s): "</span>,</div>
<div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  key_len, i, <span class="stringliteral">"enc"</span> );</div>
<div class="line"><a name="l00804"></a><span class="lineno"> 804</span> </div>
<div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  <a class="code" href="gcm_8h.html#aa51998d315ab0c99cff40bbe7dd7f200">gcm_init</a>( &ctx, cipher, key[key_index[i]], key_len );</div>
<div class="line"><a name="l00806"></a><span class="lineno"> 806</span> </div>
<div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  ret = <a class="code" href="gcm_8h.html#a44f5d26e87eda4ef3fd6ca33bdddc17a">gcm_starts</a>( &ctx, <a class="code" href="gcm_8h.html#a9ec162612f0f3a8b7e380c02ffc35867">GCM_ENCRYPT</a>,</div>
<div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  iv[iv_index[i]], iv_len[i],</div>
<div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  additional[add_index[i]], add_len[i] );</div>
<div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  <span class="keywordflow">if</span>( ret != 0 )</div>
<div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  {</div>
<div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00813"></a><span class="lineno"> 813</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"failed\n"</span> );</div>
<div class="line"><a name="l00814"></a><span class="lineno"> 814</span> </div>
<div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  }</div>
<div class="line"><a name="l00817"></a><span class="lineno"> 817</span> </div>
<div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  <span class="keywordflow">if</span>( pt_len[i] > 32 )</div>
<div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  {</div>
<div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  <span class="keywordtype">size_t</span> rest_len = pt_len[i] - 32;</div>
<div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  ret = <a class="code" href="gcm_8h.html#ac27c1ae819964e256ad31076bf8be0ac">gcm_update</a>( &ctx, 32, pt[pt_index[i]], buf );</div>
<div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  <span class="keywordflow">if</span>( ret != 0 )</div>
<div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  {</div>
<div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"failed\n"</span> );</div>
<div class="line"><a name="l00826"></a><span class="lineno"> 826</span> </div>
<div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  }</div>
<div class="line"><a name="l00829"></a><span class="lineno"> 829</span> </div>
<div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  ret = <a class="code" href="gcm_8h.html#ac27c1ae819964e256ad31076bf8be0ac">gcm_update</a>( &ctx, rest_len, pt[pt_index[i]] + 32,</div>
<div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  buf + 32 );</div>
<div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  <span class="keywordflow">if</span>( ret != 0 )</div>
<div class="line"><a name="l00833"></a><span class="lineno"> 833</span>  {</div>
<div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"failed\n"</span> );</div>
<div class="line"><a name="l00836"></a><span class="lineno"> 836</span> </div>
<div class="line"><a name="l00837"></a><span class="lineno"> 837</span>  <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00838"></a><span class="lineno"> 838</span>  }</div>
<div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  }</div>
<div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00841"></a><span class="lineno"> 841</span>  {</div>
<div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  ret = <a class="code" href="gcm_8h.html#ac27c1ae819964e256ad31076bf8be0ac">gcm_update</a>( &ctx, pt_len[i], pt[pt_index[i]], buf );</div>
<div class="line"><a name="l00843"></a><span class="lineno"> 843</span>  <span class="keywordflow">if</span>( ret != 0 )</div>
<div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  {</div>
<div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"failed\n"</span> );</div>
<div class="line"><a name="l00847"></a><span class="lineno"> 847</span> </div>
<div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  }</div>
<div class="line"><a name="l00850"></a><span class="lineno"> 850</span>  }</div>
<div class="line"><a name="l00851"></a><span class="lineno"> 851</span> </div>
<div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  ret = <a class="code" href="gcm_8h.html#a6544ce0fa5390ced146b041cfa8a4f88">gcm_finish</a>( &ctx, tag_buf, 16 );</div>
<div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  <span class="keywordflow">if</span>( ret != 0 ||</div>
<div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 ||</div>
<div class="line"><a name="l00855"></a><span class="lineno"> 855</span>  memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )</div>
<div class="line"><a name="l00856"></a><span class="lineno"> 856</span>  {</div>
<div class="line"><a name="l00857"></a><span class="lineno"> 857</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00858"></a><span class="lineno"> 858</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"failed\n"</span> );</div>
<div class="line"><a name="l00859"></a><span class="lineno"> 859</span> </div>
<div class="line"><a name="l00860"></a><span class="lineno"> 860</span>  <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00861"></a><span class="lineno"> 861</span>  }</div>
<div class="line"><a name="l00862"></a><span class="lineno"> 862</span> </div>
<div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  <a class="code" href="gcm_8h.html#a087a5c5e531806928a57f465447bc6f5">gcm_free</a>( &ctx );</div>
<div class="line"><a name="l00864"></a><span class="lineno"> 864</span> </div>
<div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"passed\n"</span> );</div>
<div class="line"><a name="l00867"></a><span class="lineno"> 867</span> </div>
<div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">" AES-GCM-%3d #%d split (%s): "</span>,</div>
<div class="line"><a name="l00870"></a><span class="lineno"> 870</span>  key_len, i, <span class="stringliteral">"dec"</span> );</div>
<div class="line"><a name="l00871"></a><span class="lineno"> 871</span> </div>
<div class="line"><a name="l00872"></a><span class="lineno"> 872</span>  <a class="code" href="gcm_8h.html#aa51998d315ab0c99cff40bbe7dd7f200">gcm_init</a>( &ctx, cipher, key[key_index[i]], key_len );</div>
<div class="line"><a name="l00873"></a><span class="lineno"> 873</span> </div>
<div class="line"><a name="l00874"></a><span class="lineno"> 874</span>  ret = <a class="code" href="gcm_8h.html#a44f5d26e87eda4ef3fd6ca33bdddc17a">gcm_starts</a>( &ctx, <a class="code" href="gcm_8h.html#a65cecb8f0fb02b51814bfbbae65fdd9c">GCM_DECRYPT</a>,</div>
<div class="line"><a name="l00875"></a><span class="lineno"> 875</span>  iv[iv_index[i]], iv_len[i],</div>
<div class="line"><a name="l00876"></a><span class="lineno"> 876</span>  additional[add_index[i]], add_len[i] );</div>
<div class="line"><a name="l00877"></a><span class="lineno"> 877</span>  <span class="keywordflow">if</span>( ret != 0 )</div>
<div class="line"><a name="l00878"></a><span class="lineno"> 878</span>  {</div>
<div class="line"><a name="l00879"></a><span class="lineno"> 879</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00880"></a><span class="lineno"> 880</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"failed\n"</span> );</div>
<div class="line"><a name="l00881"></a><span class="lineno"> 881</span> </div>
<div class="line"><a name="l00882"></a><span class="lineno"> 882</span>  <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00883"></a><span class="lineno"> 883</span>  }</div>
<div class="line"><a name="l00884"></a><span class="lineno"> 884</span> </div>
<div class="line"><a name="l00885"></a><span class="lineno"> 885</span>  <span class="keywordflow">if</span>( pt_len[i] > 32 )</div>
<div class="line"><a name="l00886"></a><span class="lineno"> 886</span>  {</div>
<div class="line"><a name="l00887"></a><span class="lineno"> 887</span>  <span class="keywordtype">size_t</span> rest_len = pt_len[i] - 32;</div>
<div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  ret = <a class="code" href="gcm_8h.html#ac27c1ae819964e256ad31076bf8be0ac">gcm_update</a>( &ctx, 32, ct[j * 6 + i], buf );</div>
<div class="line"><a name="l00889"></a><span class="lineno"> 889</span>  <span class="keywordflow">if</span>( ret != 0 )</div>
<div class="line"><a name="l00890"></a><span class="lineno"> 890</span>  {</div>
<div class="line"><a name="l00891"></a><span class="lineno"> 891</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"failed\n"</span> );</div>
<div class="line"><a name="l00893"></a><span class="lineno"> 893</span> </div>
<div class="line"><a name="l00894"></a><span class="lineno"> 894</span>  <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00895"></a><span class="lineno"> 895</span>  }</div>
<div class="line"><a name="l00896"></a><span class="lineno"> 896</span> </div>
<div class="line"><a name="l00897"></a><span class="lineno"> 897</span>  ret = <a class="code" href="gcm_8h.html#ac27c1ae819964e256ad31076bf8be0ac">gcm_update</a>( &ctx, rest_len, ct[j * 6 + i] + 32,</div>
<div class="line"><a name="l00898"></a><span class="lineno"> 898</span>  buf + 32 );</div>
<div class="line"><a name="l00899"></a><span class="lineno"> 899</span>  <span class="keywordflow">if</span>( ret != 0 )</div>
<div class="line"><a name="l00900"></a><span class="lineno"> 900</span>  {</div>
<div class="line"><a name="l00901"></a><span class="lineno"> 901</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"failed\n"</span> );</div>
<div class="line"><a name="l00903"></a><span class="lineno"> 903</span> </div>
<div class="line"><a name="l00904"></a><span class="lineno"> 904</span>  <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00905"></a><span class="lineno"> 905</span>  }</div>
<div class="line"><a name="l00906"></a><span class="lineno"> 906</span>  }</div>
<div class="line"><a name="l00907"></a><span class="lineno"> 907</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00908"></a><span class="lineno"> 908</span>  {</div>
<div class="line"><a name="l00909"></a><span class="lineno"> 909</span>  ret = <a class="code" href="gcm_8h.html#ac27c1ae819964e256ad31076bf8be0ac">gcm_update</a>( &ctx, pt_len[i], ct[j * 6 + i], buf );</div>
<div class="line"><a name="l00910"></a><span class="lineno"> 910</span>  <span class="keywordflow">if</span>( ret != 0 )</div>
<div class="line"><a name="l00911"></a><span class="lineno"> 911</span>  {</div>
<div class="line"><a name="l00912"></a><span class="lineno"> 912</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00913"></a><span class="lineno"> 913</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"failed\n"</span> );</div>
<div class="line"><a name="l00914"></a><span class="lineno"> 914</span> </div>
<div class="line"><a name="l00915"></a><span class="lineno"> 915</span>  <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00916"></a><span class="lineno"> 916</span>  }</div>
<div class="line"><a name="l00917"></a><span class="lineno"> 917</span>  }</div>
<div class="line"><a name="l00918"></a><span class="lineno"> 918</span> </div>
<div class="line"><a name="l00919"></a><span class="lineno"> 919</span>  ret = <a class="code" href="gcm_8h.html#a6544ce0fa5390ced146b041cfa8a4f88">gcm_finish</a>( &ctx, tag_buf, 16 );</div>
<div class="line"><a name="l00920"></a><span class="lineno"> 920</span>  <span class="keywordflow">if</span>( ret != 0 ||</div>
<div class="line"><a name="l00921"></a><span class="lineno"> 921</span>  memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 ||</div>
<div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )</div>
<div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  {</div>
<div class="line"><a name="l00924"></a><span class="lineno"> 924</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00925"></a><span class="lineno"> 925</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"failed\n"</span> );</div>
<div class="line"><a name="l00926"></a><span class="lineno"> 926</span> </div>
<div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00928"></a><span class="lineno"> 928</span>  }</div>
<div class="line"><a name="l00929"></a><span class="lineno"> 929</span> </div>
<div class="line"><a name="l00930"></a><span class="lineno"> 930</span>  <a class="code" href="gcm_8h.html#a087a5c5e531806928a57f465447bc6f5">gcm_free</a>( &ctx );</div>
<div class="line"><a name="l00931"></a><span class="lineno"> 931</span> </div>
<div class="line"><a name="l00932"></a><span class="lineno"> 932</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"passed\n"</span> );</div>
<div class="line"><a name="l00934"></a><span class="lineno"> 934</span> </div>
<div class="line"><a name="l00935"></a><span class="lineno"> 935</span>  }</div>
<div class="line"><a name="l00936"></a><span class="lineno"> 936</span>  }</div>
<div class="line"><a name="l00937"></a><span class="lineno"> 937</span> </div>
<div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"\n"</span> );</div>
<div class="line"><a name="l00940"></a><span class="lineno"> 940</span> </div>
<div class="line"><a name="l00941"></a><span class="lineno"> 941</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00942"></a><span class="lineno"> 942</span> }</div>
<div class="line"><a name="l00943"></a><span class="lineno"> 943</span> </div>
<div class="line"><a name="l00944"></a><span class="lineno"> 944</span> </div>
<div class="line"><a name="l00945"></a><span class="lineno"> 945</span> </div>
<div class="line"><a name="l00946"></a><span class="lineno"> 946</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_SELF_TEST && POLARSSL_AES_C */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00947"></a><span class="lineno"> 947</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00948"></a><span class="lineno"> 948</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_GCM_C */</span><span class="preprocessor"></span></div>
<div class="ttc" id="structgcm__context_html_aef9b8dc7a1c219de0550a09031662ecf"><div class="ttname"><a href="structgcm__context.html#aef9b8dc7a1c219de0550a09031662ecf">gcm_context::y</a></div><div class="ttdeci">unsigned char y[16]</div><div class="ttdef"><b>Definition:</b> <a href="gcm_8h_source.html#l00060">gcm.h:60</a></div></div>
<div class="ttc" id="gcm_8h_html_a65cecb8f0fb02b51814bfbbae65fdd9c"><div class="ttname"><a href="gcm_8h.html#a65cecb8f0fb02b51814bfbbae65fdd9c">GCM_DECRYPT</a></div><div class="ttdeci">#define GCM_DECRYPT</div><div class="ttdef"><b>Definition:</b> <a href="gcm_8h_source.html#l00041">gcm.h:41</a></div></div>
<div class="ttc" id="test__suite__aes_8cbc_8c_html_afc6a7362c0f0c9cfa8fc76b3281e2b37"><div class="ttname"><a href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a></div><div class="ttdeci">#define polarssl_printf</div><div class="ttdef"><b>Definition:</b> <a href="test__suite__aes_8cbc_8c_source.html#l00309">test_suite_aes.cbc.c:309</a></div></div>
<div class="ttc" id="gcm_8h_html_a61dae452f29231fe46c1bacee4c60e72"><div class="ttname"><a href="gcm_8h.html#a61dae452f29231fe46c1bacee4c60e72">gcm_auth_decrypt</a></div><div class="ttdeci">int gcm_auth_decrypt(gcm_context *ctx, size_t length, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len, const unsigned char *tag, size_t tag_len, const unsigned char *input, unsigned char *output)</div><div class="ttdoc">GCM buffer authenticated decryption using a block cipher. </div></div>
<div class="ttc" id="structgcm__context_html_a5a0d2cab13a86f13f604041c446d4845"><div class="ttname"><a href="structgcm__context.html#a5a0d2cab13a86f13f604041c446d4845">gcm_context::len</a></div><div class="ttdeci">uint64_t len</div><div class="ttdef"><b>Definition:</b> <a href="gcm_8h_source.html#l00057">gcm.h:57</a></div></div>
<div class="ttc" id="cipher_8h_html_a6a719708dc3b2f0d0e7beadccf871f4f"><div class="ttname"><a href="cipher_8h.html#a6a719708dc3b2f0d0e7beadccf871f4f">cipher_init</a></div><div class="ttdeci">void cipher_init(cipher_context_t *ctx)</div><div class="ttdoc">Initialize a cipher_context (as NONE) </div></div>
<div class="ttc" id="cipher_8h_html_af65d0bd9b5c3504fd010cf54955b179caaefd6ed34c1992d638129e161b28084a"><div class="ttname"><a href="cipher_8h.html#af65d0bd9b5c3504fd010cf54955b179caaefd6ed34c1992d638129e161b28084a">POLARSSL_MODE_ECB</a></div><div class="ttdef"><b>Definition:</b> <a href="cipher_8h_source.html#l00136">cipher.h:136</a></div></div>
<div class="ttc" id="structcipher__info__t_html"><div class="ttname"><a href="structcipher__info__t.html">cipher_info_t</a></div><div class="ttdoc">Cipher information. </div><div class="ttdef"><b>Definition:</b> <a href="cipher_8h_source.html#l00226">cipher.h:226</a></div></div>
<div class="ttc" id="gcm_8h_html_a5dccf47b81f81ee37869f170613e8a91"><div class="ttname"><a href="gcm_8h.html#a5dccf47b81f81ee37869f170613e8a91">POLARSSL_ERR_GCM_BAD_INPUT</a></div><div class="ttdeci">#define POLARSSL_ERR_GCM_BAD_INPUT</div><div class="ttdoc">Bad input parameters to function. </div><div class="ttdef"><b>Definition:</b> <a href="gcm_8h_source.html#l00044">gcm.h:44</a></div></div>
<div class="ttc" id="gcm_8h_html_a63019d9ec7edd51b02793cdade88054a"><div class="ttname"><a href="gcm_8h.html#a63019d9ec7edd51b02793cdade88054a">gcm_self_test</a></div><div class="ttdeci">int gcm_self_test(int verbose)</div><div class="ttdoc">Checkup routine. </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="structgcm__context_html_ad8d8763f708c0d6637b4836a0b4d2e64"><div class="ttname"><a href="structgcm__context.html#ad8d8763f708c0d6637b4836a0b4d2e64">gcm_context::HL</a></div><div class="ttdeci">uint64_t HL[16]</div><div class="ttdef"><b>Definition:</b> <a href="gcm_8h_source.html#l00055">gcm.h:55</a></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="gcm_8h_html_a9ec162612f0f3a8b7e380c02ffc35867"><div class="ttname"><a href="gcm_8h.html#a9ec162612f0f3a8b7e380c02ffc35867">GCM_ENCRYPT</a></div><div class="ttdeci">#define GCM_ENCRYPT</div><div class="ttdef"><b>Definition:</b> <a href="gcm_8h_source.html#l00040">gcm.h:40</a></div></div>
<div class="ttc" id="structgcm__context_html_a8c2b92e4c44ca18ae7d50e2b886add0b"><div class="ttname"><a href="structgcm__context.html#a8c2b92e4c44ca18ae7d50e2b886add0b">gcm_context::buf</a></div><div class="ttdeci">unsigned char buf[16]</div><div class="ttdef"><b>Definition:</b> <a href="gcm_8h_source.html#l00061">gcm.h:61</a></div></div>
<div class="ttc" id="cipher_8h_html_a76a810650461f2062938ee9b82666b36ad8e41c0d381b23d7835dd322e511564f"><div class="ttname"><a href="cipher_8h.html#a76a810650461f2062938ee9b82666b36ad8e41c0d381b23d7835dd322e511564f">POLARSSL_ENCRYPT</a></div><div class="ttdef"><b>Definition:</b> <a href="cipher_8h_source.html#l00157">cipher.h:157</a></div></div>
<div class="ttc" id="aesni_8h_html"><div class="ttname"><a href="aesni_8h.html">aesni.h</a></div><div class="ttdoc">AES-NI for hardware AES acceleration on some Intel processors. </div></div>
<div class="ttc" id="gcm_8h_html_ad87f8fd2a45b5b32c545443779c48c2d"><div class="ttname"><a href="gcm_8h.html#ad87f8fd2a45b5b32c545443779c48c2d">gcm_crypt_and_tag</a></div><div class="ttdeci">int gcm_crypt_and_tag(gcm_context *ctx, int mode, size_t length, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len, const unsigned char *input, unsigned char *output, size_t tag_len, unsigned char *tag)</div><div class="ttdoc">GCM buffer encryption/decryption using a block cipher. </div></div>
<div class="ttc" id="test__suite__aes_8cbc_8c_html_a4671795996d0aae650c87a82bca7b880"><div class="ttname"><a href="test__suite__aes_8cbc_8c.html#a4671795996d0aae650c87a82bca7b880">PUT_UINT32_BE</a></div><div class="ttdeci">#define PUT_UINT32_BE(n, b, i)</div><div class="ttdef"><b>Definition:</b> <a href="test__suite__aes_8cbc_8c_source.html#l00049">test_suite_aes.cbc.c:49</a></div></div>
<div class="ttc" id="structgcm__context_html_aef8b995d4df128137da5c4e7f7211bc3"><div class="ttname"><a href="structgcm__context.html#aef8b995d4df128137da5c4e7f7211bc3">gcm_context::mode</a></div><div class="ttdeci">int mode</div><div class="ttdef"><b>Definition:</b> <a href="gcm_8h_source.html#l00062">gcm.h:62</a></div></div>
<div class="ttc" id="structgcm__context_html_a934c2a6dffb1763a50a2fa1dc5ca549f"><div class="ttname"><a href="structgcm__context.html#a934c2a6dffb1763a50a2fa1dc5ca549f">gcm_context::HH</a></div><div class="ttdeci">uint64_t HH[16]</div><div class="ttdef"><b>Definition:</b> <a href="gcm_8h_source.html#l00056">gcm.h:56</a></div></div>
<div class="ttc" id="aesni_8h_html_a5835d24a13489804c4f9880468a292e2"><div class="ttname"><a href="aesni_8h.html#a5835d24a13489804c4f9880468a292e2">POLARSSL_AESNI_CLMUL</a></div><div class="ttdeci">#define POLARSSL_AESNI_CLMUL</div><div class="ttdef"><b>Definition:</b> <a href="aesni_8h_source.html#l00033">aesni.h:33</a></div></div>
<div class="ttc" id="cipher_8h_html_afca62e9b6e95da3a46fa6c95f0a09e38"><div class="ttname"><a href="cipher_8h.html#afca62e9b6e95da3a46fa6c95f0a09e38">cipher_update</a></div><div class="ttdeci">int cipher_update(cipher_context_t *ctx, const unsigned char *input, size_t ilen, unsigned char *output, size_t *olen)</div><div class="ttdoc">Generic cipher update function. </div></div>
<div class="ttc" id="structgcm__context_html"><div class="ttname"><a href="structgcm__context.html">gcm_context</a></div><div class="ttdoc">GCM context structure. </div><div class="ttdef"><b>Definition:</b> <a href="gcm_8h_source.html#l00053">gcm.h:53</a></div></div>
<div class="ttc" id="gcm_8h_html_aa51998d315ab0c99cff40bbe7dd7f200"><div class="ttname"><a href="gcm_8h.html#aa51998d315ab0c99cff40bbe7dd7f200">gcm_init</a></div><div class="ttdeci">int gcm_init(gcm_context *ctx, cipher_id_t cipher, const unsigned char *key, unsigned int keysize)</div><div class="ttdoc">GCM initialization (encryption) </div></div>
<div class="ttc" id="cipher_8h_html_a373f5d3a0a42c77ff4f5fe4fe7da0560a7f2185b07190a2ea88e864155bbec21d"><div class="ttname"><a href="cipher_8h.html#a373f5d3a0a42c77ff4f5fe4fe7da0560a7f2185b07190a2ea88e864155bbec21d">POLARSSL_CIPHER_ID_AES</a></div><div class="ttdef"><b>Definition:</b> <a href="cipher_8h_source.html#l00074">cipher.h:74</a></div></div>
<div class="ttc" id="cipher_8h_html_a373f5d3a0a42c77ff4f5fe4fe7da0560"><div class="ttname"><a href="cipher_8h.html#a373f5d3a0a42c77ff4f5fe4fe7da0560">cipher_id_t</a></div><div class="ttdeci">cipher_id_t</div><div class="ttdef"><b>Definition:</b> <a href="cipher_8h_source.html#l00071">cipher.h:71</a></div></div>
<div class="ttc" id="cipher_8h_html_af27f8e4cd1fab59615c3d73c69d136c8"><div class="ttname"><a href="cipher_8h.html#af27f8e4cd1fab59615c3d73c69d136c8">cipher_free</a></div><div class="ttdeci">void cipher_free(cipher_context_t *ctx)</div><div class="ttdoc">Free and clear the cipher-specific context of ctx. </div></div>
<div class="ttc" id="gcm_8h_html_a489a0823c71a0855d61f649bd1c7f4b0"><div class="ttname"><a href="gcm_8h.html#a489a0823c71a0855d61f649bd1c7f4b0">POLARSSL_ERR_GCM_AUTH_FAILED</a></div><div class="ttdeci">#define POLARSSL_ERR_GCM_AUTH_FAILED</div><div class="ttdoc">Authenticated decryption failed. </div><div class="ttdef"><b>Definition:</b> <a href="gcm_8h_source.html#l00043">gcm.h:43</a></div></div>
<div class="ttc" id="cipher_8h_html_adc7c37e925193805884085ca87587f64"><div class="ttname"><a href="cipher_8h.html#adc7c37e925193805884085ca87587f64">cipher_init_ctx</a></div><div class="ttdeci">int cipher_init_ctx(cipher_context_t *ctx, const cipher_info_t *cipher_info)</div><div class="ttdoc">Initialises and fills the cipher context structure with the appropriate values. </div></div>
<div class="ttc" id="cipher_8h_html_a77355bddf2d69f68d55e2bd2374e9257"><div class="ttname"><a href="cipher_8h.html#a77355bddf2d69f68d55e2bd2374e9257">cipher_setkey</a></div><div class="ttdeci">int cipher_setkey(cipher_context_t *ctx, const unsigned char *key, int key_length, const operation_t operation)</div><div class="ttdoc">Set the key to use with the given context. </div></div>
<div class="ttc" id="gcm_8h_html_ac27c1ae819964e256ad31076bf8be0ac"><div class="ttname"><a href="gcm_8h.html#ac27c1ae819964e256ad31076bf8be0ac">gcm_update</a></div><div class="ttdeci">int gcm_update(gcm_context *ctx, size_t length, const unsigned char *input, unsigned char *output)</div><div class="ttdoc">Generic GCM update function. </div></div>
<div class="ttc" id="gcm_8h_html_a087a5c5e531806928a57f465447bc6f5"><div class="ttname"><a href="gcm_8h.html#a087a5c5e531806928a57f465447bc6f5">gcm_free</a></div><div class="ttdeci">void gcm_free(gcm_context *ctx)</div><div class="ttdoc">Free a GCM context and underlying cipher sub-context. </div></div>
<div class="ttc" id="gcm_8h_html_a44f5d26e87eda4ef3fd6ca33bdddc17a"><div class="ttname"><a href="gcm_8h.html#a44f5d26e87eda4ef3fd6ca33bdddc17a">gcm_starts</a></div><div class="ttdeci">int gcm_starts(gcm_context *ctx, int mode, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len)</div><div class="ttdoc">Generic GCM stream start function. </div></div>
<div class="ttc" id="gcm_8h_html"><div class="ttname"><a href="gcm_8h.html">gcm.h</a></div><div class="ttdoc">Galois/Counter mode for 128-bit block ciphers. </div></div>
<div class="ttc" id="gcm_8h_html_a6544ce0fa5390ced146b041cfa8a4f88"><div class="ttname"><a href="gcm_8h.html#a6544ce0fa5390ced146b041cfa8a4f88">gcm_finish</a></div><div class="ttdeci">int gcm_finish(gcm_context *ctx, unsigned char *tag, size_t tag_len)</div><div class="ttdoc">Generic GCM finalisation function. </div></div>
<div class="ttc" id="test__suite__aes_8cbc_8c_html_a37e0e1a97807195e2de54fd6487751d3"><div class="ttname"><a href="test__suite__aes_8cbc_8c.html#a37e0e1a97807195e2de54fd6487751d3">GET_UINT32_BE</a></div><div class="ttdeci">#define GET_UINT32_BE(n, b, i)</div><div class="ttdef"><b>Definition:</b> <a href="test__suite__aes_8cbc_8c_source.html#l00039">test_suite_aes.cbc.c:39</a></div></div>
<div class="ttc" id="structcipher__info__t_html_a7e21795685c79613b5125ca608b0c63b"><div class="ttname"><a href="structcipher__info__t.html#a7e21795685c79613b5125ca608b0c63b">cipher_info_t::block_size</a></div><div class="ttdeci">unsigned int block_size</div><div class="ttdoc">block size, in bytes </div><div class="ttdef"><b>Definition:</b> <a href="cipher_8h_source.html#l00248">cipher.h:248</a></div></div>
<div class="ttc" id="structgcm__context_html_a8c5e7f00c665595616a123b119e5f6f2"><div class="ttname"><a href="structgcm__context.html#a8c5e7f00c665595616a123b119e5f6f2">gcm_context::base_ectr</a></div><div class="ttdeci">unsigned char base_ectr[16]</div><div class="ttdef"><b>Definition:</b> <a href="gcm_8h_source.html#l00059">gcm.h:59</a></div></div>
<div class="ttc" id="structgcm__context_html_a79965b2636e2621a9673bf177d582b9a"><div class="ttname"><a href="structgcm__context.html#a79965b2636e2621a9673bf177d582b9a">gcm_context::cipher_ctx</a></div><div class="ttdeci">cipher_context_t cipher_ctx</div><div class="ttdef"><b>Definition:</b> <a href="gcm_8h_source.html#l00054">gcm.h:54</a></div></div>
<div class="ttc" id="structgcm__context_html_a074ada6bd04ba63daedd5188cdcb7991"><div class="ttname"><a href="structgcm__context.html#a074ada6bd04ba63daedd5188cdcb7991">gcm_context::add_len</a></div><div class="ttdeci">uint64_t add_len</div><div class="ttdef"><b>Definition:</b> <a href="gcm_8h_source.html#l00058">gcm.h:58</a></div></div>
<div class="ttc" id="cipher_8h_html_a68fd6a4ea2c236dc4abcad76d73d5cac"><div class="ttname"><a href="cipher_8h.html#a68fd6a4ea2c236dc4abcad76d73d5cac">cipher_info_from_values</a></div><div class="ttdeci">const cipher_info_t * cipher_info_from_values(const cipher_id_t cipher_id, int key_length, const cipher_mode_t mode)</div><div class="ttdoc">Returns the cipher information structure associated with the given cipher id, key size and mode...</div></div>
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