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<h1>tea.h</h1><a href="tea_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef CRYPTOPP_TEA_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_TEA_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span><span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment">/** \file</span>
<a name="l00005"></a>00005 <span class="comment">*/</span>
<a name="l00006"></a>00006
<a name="l00007"></a>00007 <span class="preprocessor">#include "seckey.h"</span>
<a name="l00008"></a>00008 <span class="preprocessor">#include "secblock.h"</span>
<a name="l00009"></a>00009
<a name="l00010"></a>00010 NAMESPACE_BEGIN(CryptoPP)
<a name="l00011"></a>00011
<a name="l00012"></a>00012 <span class="comment">//! _</span>
<a name="l00013"></a><a class="code" href="struct_t_e_a___info.html">00013</a> <span class="comment"></span>struct <a class="code" href="struct_t_e_a___info.html" title="_">TEA_Info</a> : public <a class="code" href="class_fixed_block_size.html" title="to be inherited by block ciphers with fixed block size">FixedBlockSize</a><8>, public <a class="code" href="class_fixed_key_length.html" title="to be inherited by keyed algorithms with fixed key length">FixedKeyLength</a><16>, public <a class="code" href="class_variable_rounds.html" title="to be inherited by ciphers with variable number of rounds">VariableRounds</a><32>
<a name="l00014"></a>00014 {
<a name="l00015"></a>00015 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"TEA"</span>;}
<a name="l00016"></a>00016 };
<a name="l00017"></a>00017 <span class="comment"></span>
<a name="l00018"></a>00018 <span class="comment">/// <a href="http://www.weidai.com/scan-mirror/cs.html#TEA">TEA</a></span>
<a name="l00019"></a><a class="code" href="class_t_e_a.html">00019</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_t_e_a.html" title="TEA">TEA</a> : <span class="keyword">public</span> <a class="code" href="struct_t_e_a___info.html" title="_">TEA_Info</a>, <span class="keyword">public</span> <a class="code" href="struct_block_cipher_documentation.html" title="These objects usually should not be used directly. See CipherModeDocumentation instead...">BlockCipherDocumentation</a>
<a name="l00020"></a>00020 {
<a name="l00021"></a>00021 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Base : <span class="keyword">public</span> <a class="code" href="class_block_cipher_impl.html">BlockCipherImpl</a><TEA_Info>
<a name="l00022"></a>00022 {
<a name="l00023"></a>00023 <span class="keyword">public</span>:
<a name="l00024"></a>00024 <span class="keywordtype">void</span> UncheckedSetKey(<span class="keyword">const</span> byte *userKey, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &params);
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="keyword">protected</span>:
<a name="l00027"></a>00027 <a class="code" href="class_fixed_size_sec_block.html">FixedSizeSecBlock<word32, 4></a> m_k;
<a name="l00028"></a>00028 word32 m_limit;
<a name="l00029"></a>00029 };
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Enc : <span class="keyword">public</span> Base
<a name="l00032"></a>00032 {
<a name="l00033"></a>00033 <span class="keyword">public</span>:
<a name="l00034"></a>00034 <span class="keywordtype">void</span> ProcessAndXorBlock(<span class="keyword">const</span> byte *inBlock, <span class="keyword">const</span> byte *xorBlock, byte *outBlock) <span class="keyword">const</span>;
<a name="l00035"></a>00035 };
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Dec : <span class="keyword">public</span> Base
<a name="l00038"></a>00038 {
<a name="l00039"></a>00039 <span class="keyword">public</span>:
<a name="l00040"></a>00040 <span class="keywordtype">void</span> ProcessAndXorBlock(<span class="keyword">const</span> byte *inBlock, <span class="keyword">const</span> byte *xorBlock, byte *outBlock) <span class="keyword">const</span>;
<a name="l00041"></a>00041 };
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="keyword">public</span>:
<a name="l00044"></a><a class="code" href="class_t_e_a.html#ae3f92f346b466d9a45a0a541b4ccd2a5">00044</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html">BlockCipherFinal<ENCRYPTION, Enc></a> <a class="code" href="class_block_cipher.html" title="interface for one direction (encryption or decryption) of a block cipher">Encryption</a>;
<a name="l00045"></a><a class="code" href="class_t_e_a.html#a37ea62a8ce66ee77ffa8c6afbe37d65e">00045</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html">BlockCipherFinal<DECRYPTION, Dec></a> <a class="code" href="class_block_cipher.html" title="interface for one direction (encryption or decryption) of a block cipher">Decryption</a>;
<a name="l00046"></a>00046 };
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html">TEA::Encryption</a> <a class="code" href="class_block_cipher_final.html">TEAEncryption</a>;
<a name="l00049"></a>00049 <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html">TEA::Decryption</a> <a class="code" href="class_block_cipher_final.html">TEADecryption</a>;
<a name="l00050"></a>00050 <span class="comment"></span>
<a name="l00051"></a>00051 <span class="comment">//! _</span>
<a name="l00052"></a><a class="code" href="struct_x_t_e_a___info.html">00052</a> <span class="comment"></span><span class="keyword">struct </span><a class="code" href="struct_x_t_e_a___info.html" title="_">XTEA_Info</a> : <span class="keyword">public</span> <a class="code" href="class_fixed_block_size.html" title="to be inherited by block ciphers with fixed block size">FixedBlockSize</a><8>, <span class="keyword">public</span> <a class="code" href="class_fixed_key_length.html" title="to be inherited by keyed algorithms with fixed key length">FixedKeyLength</a><16>, <span class="keyword">public</span> <a class="code" href="class_variable_rounds.html" title="to be inherited by ciphers with variable number of rounds">VariableRounds</a><32>
<a name="l00053"></a>00053 {
<a name="l00054"></a>00054 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"XTEA"</span>;}
<a name="l00055"></a>00055 };
<a name="l00056"></a>00056 <span class="comment"></span>
<a name="l00057"></a>00057 <span class="comment">/// <a href="http://www.weidai.com/scan-mirror/cs.html#TEA">XTEA</a></span>
<a name="l00058"></a><a class="code" href="class_x_t_e_a.html">00058</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_x_t_e_a.html" title="XTEA">XTEA</a> : <span class="keyword">public</span> <a class="code" href="struct_x_t_e_a___info.html" title="_">XTEA_Info</a>, <span class="keyword">public</span> <a class="code" href="struct_block_cipher_documentation.html" title="These objects usually should not be used directly. See CipherModeDocumentation instead...">BlockCipherDocumentation</a>
<a name="l00059"></a>00059 {
<a name="l00060"></a>00060 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Base : <span class="keyword">public</span> <a class="code" href="class_block_cipher_impl.html">BlockCipherImpl</a><XTEA_Info>
<a name="l00061"></a>00061 {
<a name="l00062"></a>00062 <span class="keyword">public</span>:
<a name="l00063"></a>00063 <span class="keywordtype">void</span> UncheckedSetKey(<span class="keyword">const</span> byte *userKey, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &params);
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="keyword">protected</span>:
<a name="l00066"></a>00066 <a class="code" href="class_fixed_size_sec_block.html">FixedSizeSecBlock<word32, 4></a> m_k;
<a name="l00067"></a>00067 word32 m_limit;
<a name="l00068"></a>00068 };
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Enc : <span class="keyword">public</span> Base
<a name="l00071"></a>00071 {
<a name="l00072"></a>00072 <span class="keyword">public</span>:
<a name="l00073"></a>00073 <span class="keywordtype">void</span> ProcessAndXorBlock(<span class="keyword">const</span> byte *inBlock, <span class="keyword">const</span> byte *xorBlock, byte *outBlock) <span class="keyword">const</span>;
<a name="l00074"></a>00074 };
<a name="l00075"></a>00075
<a name="l00076"></a>00076 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Dec : <span class="keyword">public</span> Base
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 <span class="keyword">public</span>:
<a name="l00079"></a>00079 <span class="keywordtype">void</span> ProcessAndXorBlock(<span class="keyword">const</span> byte *inBlock, <span class="keyword">const</span> byte *xorBlock, byte *outBlock) <span class="keyword">const</span>;
<a name="l00080"></a>00080 };
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="keyword">public</span>:
<a name="l00083"></a><a class="code" href="class_x_t_e_a.html#ac1ea302b3eacbc23172a93be14466d17">00083</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html">BlockCipherFinal<ENCRYPTION, Enc></a> <a class="code" href="class_block_cipher.html" title="interface for one direction (encryption or decryption) of a block cipher">Encryption</a>;
<a name="l00084"></a><a class="code" href="class_x_t_e_a.html#af7054eefd118671e860c111fde21b853">00084</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html">BlockCipherFinal<DECRYPTION, Dec></a> <a class="code" href="class_block_cipher.html" title="interface for one direction (encryption or decryption) of a block cipher">Decryption</a>;
<a name="l00085"></a>00085 };
<a name="l00086"></a>00086 <span class="comment"></span>
<a name="l00087"></a>00087 <span class="comment">//! _</span>
<a name="l00088"></a><a class="code" href="struct_b_t_e_a___info.html">00088</a> <span class="comment"></span><span class="keyword">struct </span><a class="code" href="struct_b_t_e_a___info.html" title="_">BTEA_Info</a> : <span class="keyword">public</span> <a class="code" href="class_fixed_key_length.html" title="to be inherited by keyed algorithms with fixed key length">FixedKeyLength</a><16>
<a name="l00089"></a>00089 {
<a name="l00090"></a>00090 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"BTEA"</span>;}
<a name="l00091"></a>00091 };
<a name="l00092"></a>00092 <span class="comment"></span>
<a name="l00093"></a>00093 <span class="comment">//! <a href="http://www.weidai.com/scan-mirror/cs.html#TEA">corrected Block TEA</a> (as described in "xxtea").</span>
<a name="l00094"></a>00094 <span class="comment"></span><span class="comment">/*! This class hasn't been tested yet. */</span>
<a name="l00095"></a><a class="code" href="class_b_t_e_a.html">00095</a> <span class="keyword">class </span><a class="code" href="class_b_t_e_a.html" title="corrected Block TEA (as described in &quot;xxtea&quot;).">BTEA</a> : <span class="keyword">public</span> <a class="code" href="struct_b_t_e_a___info.html" title="_">BTEA_Info</a>, <span class="keyword">public</span> <a class="code" href="struct_block_cipher_documentation.html" title="These objects usually should not be used directly. See CipherModeDocumentation instead...">BlockCipherDocumentation</a>
<a name="l00096"></a>00096 {
<a name="l00097"></a>00097 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Base : <span class="keyword">public</span> <a class="code" href="class_algorithm_impl.html" title="_">AlgorithmImpl</a><SimpleKeyingInterfaceImpl<BlockCipher, BTEA_Info>, BTEA_Info>, <span class="keyword">public</span> <a class="code" href="struct_b_t_e_a___info.html" title="_">BTEA_Info</a>
<a name="l00098"></a>00098 {
<a name="l00099"></a>00099 <span class="keyword">public</span>:
<a name="l00100"></a>00100 <span class="keywordtype">void</span> UncheckedSetKey(<span class="keyword">const</span> byte *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &params)
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102 m_blockSize = params.<a class="code" href="class_name_value_pairs.html#ac269314685b737912d3499f4a9399618" title="get a named value with type int, with default">GetIntValueWithDefault</a>(<span class="stringliteral">"BlockSize"</span>, 60*4);
<a name="l00103"></a>00103 GetUserKey(BIG_ENDIAN_ORDER, m_k.begin(), 4, key, KEYLENGTH);
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> BlockSize()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_blockSize;}
<a name="l00107"></a>00107
<a name="l00108"></a>00108 <span class="keyword">protected</span>:
<a name="l00109"></a>00109 <a class="code" href="class_fixed_size_sec_block.html">FixedSizeSecBlock<word32, 4></a> m_k;
<a name="l00110"></a>00110 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> m_blockSize;
<a name="l00111"></a>00111 };
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Enc : <span class="keyword">public</span> Base
<a name="l00114"></a>00114 {
<a name="l00115"></a>00115 <span class="keyword">public</span>:
<a name="l00116"></a>00116 <span class="keywordtype">void</span> ProcessAndXorBlock(<span class="keyword">const</span> byte *inBlock, <span class="keyword">const</span> byte *xorBlock, byte *outBlock) <span class="keyword">const</span>;
<a name="l00117"></a>00117 };
<a name="l00118"></a>00118
<a name="l00119"></a>00119 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Dec : <span class="keyword">public</span> Base
<a name="l00120"></a>00120 {
<a name="l00121"></a>00121 <span class="keyword">public</span>:
<a name="l00122"></a>00122 <span class="keywordtype">void</span> ProcessAndXorBlock(<span class="keyword">const</span> byte *inBlock, <span class="keyword">const</span> byte *xorBlock, byte *outBlock) <span class="keyword">const</span>;
<a name="l00123"></a>00123 };
<a name="l00124"></a>00124
<a name="l00125"></a>00125 <span class="keyword">public</span>:
<a name="l00126"></a><a class="code" href="class_b_t_e_a.html#a1110b1f603ad618ba7931d2656af4317">00126</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html">BlockCipherFinal<ENCRYPTION, Enc></a> <a class="code" href="class_block_cipher.html" title="interface for one direction (encryption or decryption) of a block cipher">Encryption</a>;
<a name="l00127"></a><a class="code" href="class_b_t_e_a.html#a8741013d5a1702df8c247586bd42a261">00127</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html">BlockCipherFinal<DECRYPTION, Dec></a> <a class="code" href="class_block_cipher.html" title="interface for one direction (encryption or decryption) of a block cipher">Decryption</a>;
<a name="l00128"></a>00128 };
<a name="l00129"></a>00129
<a name="l00130"></a>00130 NAMESPACE_END
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="preprocessor">#endif</span>
</pre></div></div>
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