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<h1>seal.h</h1><pre class="fragment"><div>00001 <span class="preprocessor">#ifndef CRYPTOPP_SEAL_H</span>
00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_SEAL_H</span>
00003 <span class="preprocessor"></span>
00004 <span class="preprocessor">#include "<a class="code" href="strciphr_8h.html">strciphr.h</a>"</span>
00005 
00006 NAMESPACE_BEGIN(CryptoPP)
00007 
00008 <span class="comment">//! _</span>
00009 <span class="comment"></span>template &lt;class B = BigEndian&gt;
<a name="l00010"></a><a class="code" href="struct_s_e_a_l___info.html">00010</a> struct <a class="code" href="struct_s_e_a_l___info.html">SEAL_Info</a> : public <a class="code" href="class_fixed_key_length.html">FixedKeyLength</a>&lt;20, <a class="code" href="class_simple_keying_interface.html">SimpleKeyingInterface</a>::INTERNALLY_GENERATED_IV&gt;
00011 {
00012         <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *StaticAlgorithmName() {<span class="keywordflow">return</span> B::ToEnum() == LITTLE_ENDIAN_ORDER ? <span class="stringliteral">"SEAL-3.0-LE"</span> : <span class="stringliteral">"SEAL-3.0-BE"</span>;}
00013 };
00014 
00015 <span class="keyword">template</span> &lt;<span class="keyword">class</span> B = BigEndian&gt;
00016 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE SEAL_Policy : <span class="keyword">public</span> AdditiveCipherConcretePolicy&lt;word32, 256&gt;, <span class="keyword">public</span> <a class="code" href="struct_s_e_a_l___info.html">SEAL_Info</a>&lt;B&gt;
00017 {
00018 <span class="keyword">public</span>:
00019         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> IVSize()<span class="keyword"> const </span>{<span class="keywordflow">return</span> 4;}
00020         <span class="keywordtype">void</span> GetNextIV(byte *IV)<span class="keyword"> const </span>{UnalignedPutWord(BIG_ENDIAN_ORDER, IV, m_outsideCounter+1);}
00021 
00022 <span class="keyword">protected</span>:
00023         <span class="keywordtype">void</span> CipherSetKey(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &amp;params, <span class="keyword">const</span> byte *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length);
00024         <span class="keywordtype">void</span> OperateKeystream(KeystreamOperation operation, byte *output, <span class="keyword">const</span> byte *input, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> iterationCount);
00025         <span class="keywordtype">void</span> CipherResynchronize(byte *keystreamBuffer, <span class="keyword">const</span> byte *IV);
00026         <span class="keywordtype">bool</span> IsRandomAccess()<span class="keyword"> const </span>{<span class="keywordflow">return</span> <span class="keyword">true</span>;}
00027         <span class="keywordtype">void</span> SeekToIteration(lword iterationCount);
00028 
00029 <span class="keyword">private</span>:
00030         FixedSizeSecBlock&lt;word32, 512&gt; m_T;
00031         FixedSizeSecBlock&lt;word32, 256&gt; m_S;
00032         <a class="code" href="class_sec_block.html">SecBlock&lt;word32&gt;</a> m_R;
00033 
00034         word32 m_startCount, m_iterationsPerCount;
00035         word32 m_outsideCounter, m_insideCounter;
00036 };
00037 <span class="comment"></span>
00038 <span class="comment">//! &lt;a href="http://www.weidai.com/scan-mirror/cs.html#SEAL-3.0-BE"&gt;SEAL&lt;/a&gt;</span>
00039 <span class="comment"></span><span class="keyword">template</span> &lt;<span class="keyword">class</span> B = BigEndian&gt;
<a name="l00040"></a><a class="code" href="struct_s_e_a_l.html">00040</a> <span class="keyword">struct </span><a class="code" href="struct_s_e_a_l.html">SEAL</a> : <span class="keyword">public</span> <a class="code" href="struct_s_e_a_l___info.html">SEAL_Info</a>&lt;B&gt;, <span class="keyword">public</span> <a class="code" href="struct_symmetric_cipher_documentation.html">SymmetricCipherDocumentation</a>
00041 {
<a name="l00042"></a><a class="code" href="struct_s_e_a_l.html#_s_e_a_lw0">00042</a>         <span class="keyword">typedef</span> <a class="code" href="class_symmetric_cipher_final.html">SymmetricCipherFinal&lt;ConcretePolicyHolder&lt;SEAL_Policy&lt;B&gt;</a>, AdditiveCipherTemplate&lt;&gt; &gt;, <a class="code" href="struct_s_e_a_l___info.html">SEAL_Info&lt;B&gt;</a> &gt; <a class="code" href="class_symmetric_cipher_final.html">Encryption</a>;
<a name="l00043"></a><a class="code" href="struct_s_e_a_l.html#_s_e_a_lw1">00043</a>         <span class="keyword">typedef</span> <a class="code" href="class_symmetric_cipher_final.html">Encryption</a> <a class="code" href="class_symmetric_cipher_final.html">Decryption</a>;
00044 };
00045 
00046 NAMESPACE_END
00047 
00048 <span class="preprocessor">#endif</span>
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