tea_8h-source.html

著名的密码库Crypto++的文档 C++语言的杰作。程序员必备。

<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>&lt;XTEA_Info&gt;
<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> &amp;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" title="a SecBlock with fixed size, allocated statically">FixedSizeSecBlock&lt;word32, 4&gt;</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#c1ea302b3eacbc23172a93be14466d17">00083</a>         <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html" title="_">BlockCipherFinal&lt;ENCRYPTION, Enc&gt;</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#f7054eefd118671e860c111fde21b853">00084</a>         <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html" title="_">BlockCipherFinal&lt;DECRYPTION, Dec&gt;</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>&lt;16&gt;
<a name="l00089"></a>00089 {
<a name="l00090"></a><a class="code" href="struct_b_t_e_a___info.html#a3241a3e4afa48b3196f6a3daa04f8f7">00090</a>         <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="struct_b_t_e_a___info.html#a3241a3e4afa48b3196f6a3daa04f8f7">StaticAlgorithmName</a>() {<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">//! &lt;a href="http://www.weidai.com/scan-mirror/cs.html#TEA"&gt;corrected Block TEA&lt;/a&gt; (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 "xxtea").">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>&lt;SimpleKeyingInterfaceImpl&lt;BlockCipher, BTEA_Info&gt;, BTEA_Info&gt;, <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> &amp;params)
<a name="l00101"></a>00101                 {
<a name="l00102"></a>00102                         m_blockSize = params.<a class="code" href="class_name_value_pairs.html#7ddb654b7afcd1a04422a7b4b01366d9" 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(<a class="code" href="cryptlib_8h.html#aeb92d42f5a6e27b8ba19f18d69d142bf0c3bb6c718cc7ff0bffef4e8f178c57">BIG_ENDIAN_ORDER</a>, m_k.begin(), 4, key, <a class="code" href="class_fixed_key_length.html#b994d881a105849f64a973373e8f282c">KEYLENGTH</a>);
<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" title="a SecBlock with fixed size, allocated statically">FixedSizeSecBlock&lt;word32, 4&gt;</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#1110b1f603ad618ba7931d2656af4317">00126</a>         <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html" title="_">BlockCipherFinal&lt;ENCRYPTION, Enc&gt;</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#8741013d5a1702df8c247586bd42a261">00127</a>         <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html" title="_">BlockCipherFinal&lt;DECRYPTION, Dec&gt;</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>
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