📄 gf2__32_8h-source.html
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>Crypto++: gf2_32.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.2 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="classes.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul></div><h1>gf2_32.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef CRYPTOPP_GF2_32_H</span><a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_GF2_32_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">//! GF(2^32) with polynomial basis</span><a name="l00009"></a><a class="code" href="class_g_f2__32.html">00009</a> <span class="comment"></span>class <a class="code" href="class_g_f2__32.html" title="GF(2^32) with polynomial basis.">GF2_32</a><a name="l00010"></a>00010 {<a name="l00011"></a>00011 <span class="keyword">public</span>:<a name="l00012"></a><a class="code" href="class_g_f2__32.html#72d3258fb8c36f2bb8a544b96d453a03">00012</a> <span class="keyword">typedef</span> word32 Element;<a name="l00013"></a><a class="code" href="class_g_f2__32.html#1467bd719b3edf9a5b577fec99687362">00013</a> <span class="keyword">typedef</span> <span class="keywordtype">int</span> RandomizationParameter;<a name="l00014"></a>00014 <a name="l00015"></a><a class="code" href="class_g_f2__32.html#0e8888bb5c2653a1e420e2049ea58116">00015</a> GF2_32(word32 modulus=0x0000008D) : m_modulus(modulus) {}<a name="l00016"></a>00016 <a name="l00017"></a><a class="code" href="class_g_f2__32.html#84f0d206384fd60c469edf08d38e444b">00017</a> Element RandomElement(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &rng, <span class="keywordtype">int</span> ignored = 0)<span class="keyword"> const</span><a name="l00018"></a>00018 <span class="keyword"> </span>{<span class="keywordflow">return</span> rng.<a class="code" href="class_random_number_generator.html#c06c9f5e66f35d643e4192f231b8a4cd" title="generate a random 32 bit word in the range min to max, inclusive">GenerateWord32</a>();}<a name="l00019"></a>00019 <a name="l00020"></a><a class="code" href="class_g_f2__32.html#d16015273674388aca9e0d849ab1c8ec">00020</a> <span class="keywordtype">bool</span> Equal(Element a, Element b)<span class="keyword"> const</span><a name="l00021"></a>00021 <span class="keyword"> </span>{<span class="keywordflow">return</span> a==b;}<a name="l00022"></a>00022 <a name="l00023"></a><a class="code" href="class_g_f2__32.html#fafaff59ca52431465ff47a5698476a2">00023</a> Element Identity()<span class="keyword"> const</span><a name="l00024"></a>00024 <span class="keyword"> </span>{<span class="keywordflow">return</span> 0;}<a name="l00025"></a>00025 <a name="l00026"></a><a class="code" href="class_g_f2__32.html#26c77a3e7123d5bc2cd4d3a1f641ed5c">00026</a> Element Add(Element a, Element b)<span class="keyword"> const</span><a name="l00027"></a>00027 <span class="keyword"> </span>{<span class="keywordflow">return</span> a^b;}<a name="l00028"></a>00028 <a name="l00029"></a><a class="code" href="class_g_f2__32.html#7db1cc0120c984a734470cc7aa5651f4">00029</a> Element& Accumulate(Element &a, Element b)<span class="keyword"> const</span><a name="l00030"></a>00030 <span class="keyword"> </span>{<span class="keywordflow">return</span> a^=b;}<a name="l00031"></a>00031 <a name="l00032"></a><a class="code" href="class_g_f2__32.html#c44c079606791b39b41e3ac8297d2601">00032</a> Element Inverse(Element a)<span class="keyword"> const</span><a name="l00033"></a>00033 <span class="keyword"> </span>{<span class="keywordflow">return</span> a;}<a name="l00034"></a>00034 <a name="l00035"></a><a class="code" href="class_g_f2__32.html#1201d78bdaf3d65915d0304b06aea7af">00035</a> Element Subtract(Element a, Element b)<span class="keyword"> const</span><a name="l00036"></a>00036 <span class="keyword"> </span>{<span class="keywordflow">return</span> a^b;}<a name="l00037"></a>00037 <a name="l00038"></a><a class="code" href="class_g_f2__32.html#aa4b1c8c86a24c02d9fa02c823afdfda">00038</a> Element& Reduce(Element &a, Element b)<span class="keyword"> const</span><a name="l00039"></a>00039 <span class="keyword"> </span>{<span class="keywordflow">return</span> a^=b;}<a name="l00040"></a>00040 <a name="l00041"></a><a class="code" href="class_g_f2__32.html#a904a4817f1ee01705a5a7197d4ad257">00041</a> Element Double(Element a)<span class="keyword"> const</span><a name="l00042"></a>00042 <span class="keyword"> </span>{<span class="keywordflow">return</span> 0;}<a name="l00043"></a>00043 <a name="l00044"></a><a class="code" href="class_g_f2__32.html#edfd8bd14b4071a540aa52063c68c671">00044</a> Element MultiplicativeIdentity()<span class="keyword"> const</span><a name="l00045"></a>00045 <span class="keyword"> </span>{<span class="keywordflow">return</span> 1;}<a name="l00046"></a>00046 <a name="l00047"></a>00047 Element Multiply(Element a, Element b) <span class="keyword">const</span>;<a name="l00048"></a>00048 <a name="l00049"></a><a class="code" href="class_g_f2__32.html#a5016af52ee9ea14f98ffdfb9676ae3f">00049</a> Element <a class="code" href="class_square.html" title="Square">Square</a>(Element a)<span class="keyword"> const</span><a name="l00050"></a>00050 <span class="keyword"> </span>{<span class="keywordflow">return</span> Multiply(a, a);}<a name="l00051"></a>00051 <a name="l00052"></a><a class="code" href="class_g_f2__32.html#f9ce5f2122ae421a89ca92088ce7f8a0">00052</a> <span class="keywordtype">bool</span> IsUnit(Element a)<span class="keyword"> const</span><a name="l00053"></a>00053 <span class="keyword"> </span>{<span class="keywordflow">return</span> a != 0;}<a name="l00054"></a>00054 <a name="l00055"></a>00055 Element MultiplicativeInverse(Element a) <span class="keyword">const</span>;<a name="l00056"></a>00056 <a name="l00057"></a><a class="code" href="class_g_f2__32.html#475f08e7c0faa99e2c5b9c0dac05ff38">00057</a> Element Divide(Element a, Element b)<span class="keyword"> const</span><a name="l00058"></a>00058 <span class="keyword"> </span>{<span class="keywordflow">return</span> Multiply(a, MultiplicativeInverse(b));}<a name="l00059"></a>00059 <a name="l00060"></a>00060 <span class="keyword">private</span>:<a name="l00061"></a>00061 word32 m_modulus;<a name="l00062"></a>00062 };<a name="l00063"></a>00063 <a name="l00064"></a>00064 NAMESPACE_END<a name="l00065"></a>00065 <a name="l00066"></a>00066 <span class="preprocessor">#endif</span></pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Fri Jun 1 11:11:21 2007 for Crypto++ by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.2 </small></address></body></html>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -