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<li class="navelem"><a class="el" href="dir_6a9bbd12bf4e19a18c45e270f8fae3fd.html">include</a></li><li class="navelem"><a class="el" href="dir_04272d44da4745cf8b8bfc767d6c6523.html">polarssl</a></li> </ul>
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<div class="title">arc4.h</div> </div>
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<a href="arc4_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> </div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#ifndef POLARSSL_ARC4_H</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor"></span><span class="preprocessor">#define POLARSSL_ARC4_H</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#if !defined(POLARSSL_CONFIG_FILE)</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="config_8h.html">config.h</a>"</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span><span class="preprocessor">#include POLARSSL_CONFIG_FILE</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include <string.h></span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#if !defined(POLARSSL_ARC4_ALT)</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor"></span><span class="comment">// Regular implementation</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment">//</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="structarc4__context.html"> 49</a></span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> {</div>
<div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="structarc4__context.html#a62ddc900ff58d2bfbe4a4f1df4f4df23"> 51</a></span>  <span class="keywordtype">int</span> <a class="code" href="structarc4__context.html#a62ddc900ff58d2bfbe4a4f1df4f4df23">x</a>; </div>
<div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="structarc4__context.html#ab88c4f11665e4d94f459ac468fdbc68b"> 52</a></span>  <span class="keywordtype">int</span> <a class="code" href="structarc4__context.html#ab88c4f11665e4d94f459ac468fdbc68b">y</a>; </div>
<div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="structarc4__context.html#aa276a56a26f761f00c700e99a524e477"> 53</a></span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> m[256]; </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> }</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <a class="code" href="structarc4__context.html">arc4_context</a>;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</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="l00063"></a><span class="lineno"> 63</span> </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</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="l00070"></a><span class="lineno"> 70</span> </div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</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="l00079"></a><span class="lineno"> 79</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> keylen );</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</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="l00092"></a><span class="lineno"> 92</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *output );</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="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor"></span>}</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="preprocessor">#else </span><span class="comment">/* POLARSSL_ARC4_ALT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor"></span><span class="preprocessor">#include "arc4_alt.h"</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_ARC4_ALT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</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="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="preprocessor"></span>}</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="preprocessor">#endif </span><span class="comment">/* arc4.h */</span><span class="preprocessor"></span></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="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_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>
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