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<title>Crypto++: adler32.h Source File</title>
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<h1>adler32.h</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef CRYPTOPP_ADLER32_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_ADLER32_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span>
<a name="l00004"></a>00004 <span class="preprocessor">#include "<a class="code" href="cryptlib_8h.html">cryptlib.h</a>"</span>
<a name="l00005"></a>00005
<a name="l00006"></a>00006 NAMESPACE_BEGIN(CryptoPP)
<a name="l00007"></a>00007
<a name="l00008"></a>00008 <span class="comment">//! ADLER-32 checksum calculations </span>
<a name="l00009"></a><a class="code" href="class_adler32.html">00009</a> <span class="comment"></span>class <a class="code" href="class_adler32.html" title="ADLER-32 checksum calculations.">Adler32</a> : public <a class="code" href="class_hash_transformation.html" title="interface for hash functions and data processing part of MACs">HashTransformation</a>
<a name="l00010"></a>00010 {
<a name="l00011"></a>00011 <span class="keyword">public</span>:
<a name="l00012"></a>00012 CRYPTOPP_CONSTANT(DIGESTSIZE = 4)
<a name="l00013"></a>00013 <a class="code" href="class_adler32.html" title="ADLER-32 checksum calculations.">Adler32</a>() {Reset();}
<a name="l00014"></a>00014 <span class="keywordtype">void</span> Update(<span class="keyword">const</span> byte *input, <span class="keywordtype">size_t</span> length);
<a name="l00015"></a>00015 <span class="keywordtype">void</span> TruncatedFinal(byte *hash, <span class="keywordtype">size_t</span> size);
<a name="l00016"></a><a class="code" href="class_adler32.html#afe40f0e26a5c9030fe0848da84659060">00016</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="class_adler32.html#afe40f0e26a5c9030fe0848da84659060" title="size of the hash/digest/MAC returned by Final()">DigestSize</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> DIGESTSIZE;}
<a name="l00017"></a>00017 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> * StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"Adler32"</span>;}
<a name="l00018"></a><a class="code" href="class_adler32.html#a1528e4e88f83326a7406fa448840fda6">00018</a> std::string <a class="code" href="class_adler32.html#a1528e4e88f83326a7406fa448840fda6" title="returns name of this algorithm, not universally implemented yet">AlgorithmName</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> StaticAlgorithmName();}
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="keyword">private</span>:
<a name="l00021"></a>00021 <span class="keywordtype">void</span> Reset() {m_s1 = 1; m_s2 = 0;}
<a name="l00022"></a>00022
<a name="l00023"></a>00023 word16 m_s1, m_s2;
<a name="l00024"></a>00024 };
<a name="l00025"></a>00025
<a name="l00026"></a>00026 NAMESPACE_END
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="preprocessor">#endif</span>
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