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<a href="arc4_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"> * An implementation of the ARCFOUR algorithm</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> <span class="comment">/*</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * The ARCFOUR algorithm was publicly disclosed on 94/09.</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * http://groups.google.com/group/sci.crypt/msg/10a300c9d21afca0</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#if !defined(POLARSSL_CONFIG_FILE)</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</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="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor"></span><span class="preprocessor">#include POLARSSL_CONFIG_FILE</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#if defined(POLARSSL_ARC4_C)</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include "<a class="code" href="arc4_8h.html">polarssl/arc4.h</a>"</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#if defined(POLARSSL_PLATFORM_C)</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</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="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor"></span><span class="preprocessor">#define polarssl_printf printf</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#if !defined(POLARSSL_ARC4_ALT)</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment">/* Implementation that should never be optimized out by the compiler */</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">static</span> <span class="keywordtype">void</span> polarssl_zeroize( <span class="keywordtype">void</span> *v, <span class="keywordtype">size_t</span> n ) {</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">volatile</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *p = v; <span class="keywordflow">while</span>( n-- ) *p++ = 0;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> }</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keywordtype">void</span> <a class="code" href="arc4_8h.html#a32d90c8a314010e5ac0384bbcc193264">arc4_init</a>( <a class="code" href="structarc4__context.html">arc4_context</a> *ctx )</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> {</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  memset( ctx, 0, <span class="keyword">sizeof</span>( <a class="code" href="structarc4__context.html">arc4_context</a> ) );</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> }</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keywordtype">void</span> <a class="code" href="arc4_8h.html#ab3cb9f8e84a0f4ac61adeaddfe4cf09f">arc4_free</a>( <a class="code" href="structarc4__context.html">arc4_context</a> *ctx )</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> {</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">if</span>( ctx == NULL )</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  polarssl_zeroize( ctx, <span class="keyword">sizeof</span>( <a class="code" href="structarc4__context.html">arc4_context</a> ) );</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> }</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"> * ARC4 key schedule</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="keywordtype">void</span> <a class="code" href="arc4_8h.html#a1fd99cbe46d7967970631b7479570797">arc4_setup</a>( <a class="code" href="structarc4__context.html">arc4_context</a> *ctx, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *key,</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> keylen )</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> {</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordtype">int</span> i, j, a;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> k;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *m;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  ctx-><a class="code" href="structarc4__context.html#a62ddc900ff58d2bfbe4a4f1df4f4df23">x</a> = 0;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  ctx-><a class="code" href="structarc4__context.html#ab88c4f11665e4d94f459ac468fdbc68b">y</a> = 0;</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  m = ctx-><a class="code" href="structarc4__context.html#aa276a56a26f761f00c700e99a524e477">m</a>;</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">for</span>( i = 0; i < 256; i++ )</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  m[i] = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>) i;</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>  j = k = 0;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">for</span>( i = 0; i < 256; i++, k++ )</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  {</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span>( k >= keylen ) k = 0;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  a = m[i];</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  j = ( j + a + key[k] ) & 0xFF;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  m[i] = m[j];</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  m[j] = (<span class="keywordtype">unsigned</span> char) a;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> }</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> * ARC4 cipher function</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="keywordtype">int</span> <a class="code" href="arc4_8h.html#aa67f458b02967bbf09f14592de4edece">arc4_crypt</a>( <a class="code" href="structarc4__context.html">arc4_context</a> *ctx, <span class="keywordtype">size_t</span> length, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *input,</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *output )</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> {</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordtype">int</span> x, y, a, b;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordtype">size_t</span> i;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *m;</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  x = ctx-><a class="code" href="structarc4__context.html#a62ddc900ff58d2bfbe4a4f1df4f4df23">x</a>;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  y = ctx-><a class="code" href="structarc4__context.html#ab88c4f11665e4d94f459ac468fdbc68b">y</a>;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  m = ctx-><a class="code" href="structarc4__context.html#aa276a56a26f761f00c700e99a524e477">m</a>;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">for</span>( i = 0; i < length; i++ )</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>  x = ( x + 1 ) & 0xFF; a = m[x];</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  y = ( y + a ) & 0xFF; b = m[y];</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  m[x] = (<span class="keywordtype">unsigned</span> char) b;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  m[y] = (<span class="keywordtype">unsigned</span> char) a;</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  output[i] = (<span class="keywordtype">unsigned</span> char)</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  ( input[i] ^ m[(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>)( a + b )] );</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  }</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  ctx-><a class="code" href="structarc4__context.html#a62ddc900ff58d2bfbe4a4f1df4f4df23">x</a> = x;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  ctx-><a class="code" href="structarc4__context.html#ab88c4f11665e4d94f459ac468fdbc68b">y</a> = y;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> }</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> <span class="preprocessor">#endif </span><span class="comment">/* !POLARSSL_ARC4_ALT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="preprocessor">#if defined(POLARSSL_SELF_TEST)</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="preprocessor">#include <string.h></span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="preprocessor">#include <stdio.h></span></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> <span class="comment">/*</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment"> * ARC4 tests vectors as posted by Eric Rescorla in sep. 1994:</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment"> * http://groups.google.com/group/comp.security.misc/msg/10a300c9d21afca0</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> arc4_test_key[3][8] =</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> {</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }</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> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> arc4_test_pt[3][8] =</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> {</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> };</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> arc4_test_ct[3][8] =</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> {</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  { 0x75, 0xB7, 0x87, 0x80, 0x99, 0xE0, 0xC5, 0x96 },</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  { 0x74, 0x94, 0xC2, 0xE7, 0x10, 0x4B, 0x08, 0x79 },</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  { 0xDE, 0x18, 0x89, 0x41, 0xA3, 0x37, 0x5D, 0x3A }</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> };</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> <span class="comment">/*</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment"> * Checkup routine</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="keywordtype">int</span> <a class="code" href="arc4_8h.html#ae9b94957789aa35bb249236fb1b2cf86">arc4_self_test</a>( <span class="keywordtype">int</span> verbose )</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> {</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordtype">int</span> i, ret = 0;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> ibuf[8];</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> obuf[8];</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <a class="code" href="structarc4__context.html">arc4_context</a> ctx;</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a class="code" href="arc4_8h.html#a32d90c8a314010e5ac0384bbcc193264">arc4_init</a>( &ctx );</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">for</span>( i = 0; i < 3; i++ )</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  {</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">" ARC4 test #%d: "</span>, i + 1 );</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  memcpy( ibuf, arc4_test_pt[i], 8 );</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>  <a class="code" href="arc4_8h.html#a1fd99cbe46d7967970631b7479570797">arc4_setup</a>( &ctx, arc4_test_key[i], 8 );</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <a class="code" href="arc4_8h.html#aa67f458b02967bbf09f14592de4edece">arc4_crypt</a>( &ctx, 8, ibuf, obuf );</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="keywordflow">if</span>( memcmp( obuf, arc4_test_ct[i], 8 ) != 0 )</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  {</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</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="l00188"></a><span class="lineno"> 188</span> </div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  ret = 1;</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">goto</span> exit;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  }</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</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="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="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</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="l00199"></a><span class="lineno"> 199</span> </div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> exit:</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <a class="code" href="arc4_8h.html#ab3cb9f8e84a0f4ac61adeaddfe4cf09f">arc4_free</a>( &ctx );</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> </div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">return</span>( ret );</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> }</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> </div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_SELF_TEST */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_ARC4_C */</span><span class="preprocessor"></span></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="arc4_8h_html_aa67f458b02967bbf09f14592de4edece"><div class="ttname"><a href="arc4_8h.html#aa67f458b02967bbf09f14592de4edece">arc4_crypt</a></div><div class="ttdeci">int arc4_crypt(arc4_context *ctx, size_t length, const unsigned char *input, unsigned char *output)</div><div class="ttdoc">ARC4 cipher function. </div></div>
<div class="ttc" id="arc4_8h_html_a32d90c8a314010e5ac0384bbcc193264"><div class="ttname"><a href="arc4_8h.html#a32d90c8a314010e5ac0384bbcc193264">arc4_init</a></div><div class="ttdeci">void arc4_init(arc4_context *ctx)</div><div class="ttdoc">Initialize ARC4 context. </div></div>
<div class="ttc" id="arc4_8h_html_a1fd99cbe46d7967970631b7479570797"><div class="ttname"><a href="arc4_8h.html#a1fd99cbe46d7967970631b7479570797">arc4_setup</a></div><div class="ttdeci">void arc4_setup(arc4_context *ctx, const unsigned char *key, unsigned int keylen)</div><div class="ttdoc">ARC4 key schedule. </div></div>
<div class="ttc" id="arc4_8h_html_ae9b94957789aa35bb249236fb1b2cf86"><div class="ttname"><a href="arc4_8h.html#ae9b94957789aa35bb249236fb1b2cf86">arc4_self_test</a></div><div class="ttdeci">int arc4_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="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="arc4_8h_html_ab3cb9f8e84a0f4ac61adeaddfe4cf09f"><div class="ttname"><a href="arc4_8h.html#ab3cb9f8e84a0f4ac61adeaddfe4cf09f">arc4_free</a></div><div class="ttdeci">void arc4_free(arc4_context *ctx)</div><div class="ttdoc">Clear ARC4 context. </div></div>
<div class="ttc" id="structarc4__context_html_ab88c4f11665e4d94f459ac468fdbc68b"><div class="ttname"><a href="structarc4__context.html#ab88c4f11665e4d94f459ac468fdbc68b">arc4_context::y</a></div><div class="ttdeci">int y</div><div class="ttdef"><b>Definition:</b> <a href="arc4_8h_source.html#l00052">arc4.h:52</a></div></div>
<div class="ttc" id="structarc4__context_html_aa276a56a26f761f00c700e99a524e477"><div class="ttname"><a href="structarc4__context.html#aa276a56a26f761f00c700e99a524e477">arc4_context::m</a></div><div class="ttdeci">unsigned char m[256]</div><div class="ttdef"><b>Definition:</b> <a href="arc4_8h_source.html#l00053">arc4.h:53</a></div></div>
<div class="ttc" id="structarc4__context_html_a62ddc900ff58d2bfbe4a4f1df4f4df23"><div class="ttname"><a href="structarc4__context.html#a62ddc900ff58d2bfbe4a4f1df4f4df23">arc4_context::x</a></div><div class="ttdeci">int x</div><div class="ttdef"><b>Definition:</b> <a href="arc4_8h_source.html#l00051">arc4.h:51</a></div></div>
<div class="ttc" id="structarc4__context_html"><div class="ttname"><a href="structarc4__context.html">arc4_context</a></div><div class="ttdoc">ARC4 context structure. </div><div class="ttdef"><b>Definition:</b> <a href="arc4_8h_source.html#l00049">arc4.h:49</a></div></div>
<div class="ttc" id="arc4_8h_html"><div class="ttname"><a href="arc4_8h.html">arc4.h</a></div><div class="ttdoc">The ARCFOUR stream cipher. </div></div>
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