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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">xtea.h</div> </div>
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<a href="xtea_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_XTEA_H</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor"></span><span class="preprocessor">#define POLARSSL_XTEA_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(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor"></span><span class="preprocessor">#include <basetsd.h></span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">typedef</span> UINT32 uint32_t;</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor"></span><span class="preprocessor">#include <inttypes.h></span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="xtea_8h.html#aa75a338c8b1485f3dcd52ff788312136"> 45</a></span> <span class="preprocessor">#define XTEA_ENCRYPT 1</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="xtea_8h.html#a12112dc96c2e7b6f1b6a5b38a9471c01"> 46</a></span> <span class="preprocessor"></span><span class="preprocessor">#define XTEA_DECRYPT 0</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="xtea_8h.html#a9c09eafcc6b5bacc7d3617daaf357727"> 48</a></span> <span class="preprocessor">#define POLARSSL_ERR_XTEA_INVALID_INPUT_LENGTH -0x0028 </span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#if !defined(POLARSSL_XTEA_ALT)</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor"></span><span class="comment">// Regular implementation</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment">//</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="structxtea__context.html"> 61</a></span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> {</div>
<div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="structxtea__context.html#a9f8d2371f6498f71eea654cf5483f9d6"> 63</a></span>  uint32_t k[4]; </div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> }</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <a class="code" href="structxtea__context.html">xtea_context</a>;</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="keywordtype">void</span> <a class="code" href="xtea_8h.html#a6e92b27a7301c5b521c13d844f06f0ab">xtea_init</a>( <a class="code" href="structxtea__context.html">xtea_context</a> *ctx );</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="keywordtype">void</span> <a class="code" href="xtea_8h.html#a51b6944567d78a15810ad74ca1603735">xtea_free</a>( <a class="code" href="structxtea__context.html">xtea_context</a> *ctx );</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="keywordtype">void</span> <a class="code" href="xtea_8h.html#af3dbab39c255385de39650070c1bbfa2">xtea_setup</a>( <a class="code" href="structxtea__context.html">xtea_context</a> *ctx, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> key[16] );</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="keywordtype">int</span> <a class="code" href="xtea_8h.html#a567fc0be7301210fa16f33a9062f71ed">xtea_crypt_ecb</a>( <a class="code" href="structxtea__context.html">xtea_context</a> *ctx,</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordtype">int</span> mode,</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> input[8],</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> output[8] );</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="preprocessor">#if defined(POLARSSL_CIPHER_MODE_CBC)</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="keywordtype">int</span> <a class="code" href="xtea_8h.html#a51653f454cb805f026e9ce940d6f5bae">xtea_crypt_cbc</a>( <a class="code" href="structxtea__context.html">xtea_context</a> *ctx,</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordtype">int</span> mode,</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">size_t</span> length,</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> iv[8],</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *input,</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *output);</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_CIPHER_MODE_CBC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="preprocessor"></span>}</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="preprocessor">#else </span><span class="comment">/* POLARSSL_XTEA_ALT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="preprocessor"></span><span class="preprocessor">#include "xtea_alt.h"</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_XTEA_ALT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="keywordtype">int</span> <a class="code" href="xtea_8h.html#a03b5858d119c1b2674612c2e94ece5f1">xtea_self_test</a>( <span class="keywordtype">int</span> verbose );</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="preprocessor"></span>}</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="preprocessor">#endif </span><span class="comment">/* xtea.h */</span><span class="preprocessor"></span></div>
<div class="ttc" id="xtea_8h_html_a51b6944567d78a15810ad74ca1603735"><div class="ttname"><a href="xtea_8h.html#a51b6944567d78a15810ad74ca1603735">xtea_free</a></div><div class="ttdeci">void xtea_free(xtea_context *ctx)</div><div class="ttdoc">Clear XTEA context. </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="xtea_8h_html_a6e92b27a7301c5b521c13d844f06f0ab"><div class="ttname"><a href="xtea_8h.html#a6e92b27a7301c5b521c13d844f06f0ab">xtea_init</a></div><div class="ttdeci">void xtea_init(xtea_context *ctx)</div><div class="ttdoc">Initialize XTEA context. </div></div>
<div class="ttc" id="xtea_8h_html_a567fc0be7301210fa16f33a9062f71ed"><div class="ttname"><a href="xtea_8h.html#a567fc0be7301210fa16f33a9062f71ed">xtea_crypt_ecb</a></div><div class="ttdeci">int xtea_crypt_ecb(xtea_context *ctx, int mode, const unsigned char input[8], unsigned char output[8])</div><div class="ttdoc">XTEA cipher function. </div></div>
<div class="ttc" id="xtea_8h_html_af3dbab39c255385de39650070c1bbfa2"><div class="ttname"><a href="xtea_8h.html#af3dbab39c255385de39650070c1bbfa2">xtea_setup</a></div><div class="ttdeci">void xtea_setup(xtea_context *ctx, const unsigned char key[16])</div><div class="ttdoc">XTEA key schedule. </div></div>
<div class="ttc" id="xtea_8h_html_a51653f454cb805f026e9ce940d6f5bae"><div class="ttname"><a href="xtea_8h.html#a51653f454cb805f026e9ce940d6f5bae">xtea_crypt_cbc</a></div><div class="ttdeci">int xtea_crypt_cbc(xtea_context *ctx, int mode, size_t length, unsigned char iv[8], const unsigned char *input, unsigned char *output)</div><div class="ttdoc">XTEA CBC cipher function. </div></div>
<div class="ttc" id="structxtea__context_html"><div class="ttname"><a href="structxtea__context.html">xtea_context</a></div><div class="ttdoc">XTEA context structure. </div><div class="ttdef"><b>Definition:</b> <a href="xtea_8h_source.html#l00061">xtea.h:61</a></div></div>
<div class="ttc" id="xtea_8h_html_a03b5858d119c1b2674612c2e94ece5f1"><div class="ttname"><a href="xtea_8h.html#a03b5858d119c1b2674612c2e94ece5f1">xtea_self_test</a></div><div class="ttdeci">int xtea_self_test(int verbose)</div><div class="ttdoc">Checkup routine. </div></div>
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