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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>Crypto++: rw.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.3.2 --><div class="qindex"><a class="qindex" href="index.html">Main&nbsp;Page</a> | <a class="qindex" href="namespaces.html">Namespace List</a> | <a class="qindex" href="hierarchy.html">Class&nbsp;Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical&nbsp;List</a> | <a class="qindex" href="annotated.html">Compound&nbsp;List</a> | <a class="qindex" href="files.html">File&nbsp;List</a> | <a class="qindex" href="namespacemembers.html">Namespace&nbsp;Members</a> | <a class="qindex" href="functions.html">Compound&nbsp;Members</a> | <a class="qindex" href="globals.html">File&nbsp;Members</a></div><h1>rw.h</h1><a href="rw_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="preprocessor">#ifndef CRYPTOPP_RW_H</span>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_RW_H</span>00003 <span class="preprocessor"></span><span class="comment"></span>00004 <span class="comment">/** \file</span>00005 <span class="comment">        This file contains classes that implement the</span>00006 <span class="comment">        Rabin-Williams signature schemes as defined in IEEE P1363.</span>00007 <span class="comment">*/</span>00008 00009 <span class="preprocessor">#include "<a class="code" href="pubkey_8h.html">pubkey.h</a>"</span>00010 <span class="preprocessor">#include "<a class="code" href="integer_8h.html">integer.h</a>"</span>00011 00012 NAMESPACE_BEGIN(CryptoPP)00013 00014 <span class="keyword">const</span> word IFSSR_R = 6;00015 <span class="keyword">const</span> word IFSSA_R = 12;00016 <span class="comment"></span>00017 <span class="comment">//! .</span>00018 <span class="comment"></span><span class="keyword">template</span> &lt;word r&gt;<a name="l00019"></a><a class="code" href="class_r_w_function.html">00019</a> <span class="keyword">class </span><a class="code" href="class_r_w_function.html">RWFunction</a> : <span class="keyword">virtual</span> <span class="keyword">public</span> <a class="code" href="class_trapdoor_function.html">TrapdoorFunction</a>, <span class="keyword">public</span> <a class="code" href="class_public_key.html">PublicKey</a>00020 {00021         <span class="keyword">typedef</span> <a class="code" href="class_r_w_function.html">RWFunction</a> <a class="code" href="class_r_w_function.html">ThisClass</a>;00022 00023 <span class="keyword">public</span>:00024         <span class="keywordtype">void</span> Initialize(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;n)00025                 {m_n = n;}00026 00027         <span class="keywordtype">void</span> BERDecode(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &amp;bt);00028         <span class="keywordtype">void</span> DEREncode(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &amp;bt) <span class="keyword">const</span>;00029 00030         <a class="code" href="class_integer.html">Integer</a> ApplyFunction(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;x) <span class="keyword">const</span>;00031         <a class="code" href="class_integer.html">Integer</a> PreimageBound()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_n;}00032         <a class="code" href="class_integer.html">Integer</a> ImageBound()<span class="keyword"> const </span>{<span class="keywordflow">return</span> ++(m_n&gt;&gt;1);}00033 00034         <span class="keywordtype">bool</span> <a class="code" href="class_r_w_function.html#_r_w_functiona6">Validate</a>(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &amp;rng, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> level) <span class="keyword">const</span>;00035         <span class="keywordtype">bool</span> <a class="code" href="class_r_w_function.html#_r_w_functiona7">GetVoidValue</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">const</span> std::type_info &amp;valueType, <span class="keywordtype">void</span> *pValue) <span class="keyword">const</span>;00036         <span class="keywordtype">void</span> <a class="code" href="class_r_w_function.html#_r_w_functiona8">AssignFrom</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &amp;source);00037 00038         <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a>&amp; GetModulus()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_n;}00039         <span class="keywordtype">void</span> SetModulus(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;n) {m_n = n;}00040 00041 <span class="keyword">protected</span>:00042         <a class="code" href="class_integer.html">Integer</a> m_n;00043 };00044 <span class="comment"></span>00045 <span class="comment">//! .</span>00046 <span class="comment"></span><span class="keyword">template</span> &lt;word r&gt;<a name="l00047"></a><a class="code" href="class_invertible_r_w_function.html">00047</a> <span class="keyword">class </span><a class="code" href="class_invertible_r_w_function.html">InvertibleRWFunction</a> : <span class="keyword">public</span> <a class="code" href="class_r_w_function.html">RWFunction</a>&lt;r&gt;, <span class="keyword">public</span> <a class="code" href="class_trapdoor_function_inverse.html">TrapdoorFunctionInverse</a>, <span class="keyword">public</span> <a class="code" href="class_private_key.html">PrivateKey</a>00048 {00049         <span class="keyword">typedef</span> <a class="code" href="class_invertible_r_w_function.html">InvertibleRWFunction</a> <a class="code" href="class_invertible_r_w_function.html">ThisClass</a>;00050 00051 <span class="keyword">public</span>:00052         <span class="keywordtype">void</span> Initialize(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;n, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;p, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;q, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;u)00053                 {m_n = n; m_p = p; m_q = q; m_u = u;}00054         <span class="comment">// generate a random private key</span>00055         <span class="keywordtype">void</span> Initialize(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &amp;rng, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> modulusBits)00056                 {<a class="code" href="class_generatable_crypto_material.html#_x_t_r___d_ha28">GenerateRandomWithKeySize</a>(rng, modulusBits);}00057 00058         <span class="keywordtype">void</span> BERDecode(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &amp;bt);00059         <span class="keywordtype">void</span> DEREncode(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &amp;bt) <span class="keyword">const</span>;00060 00061         <a class="code" href="class_integer.html">Integer</a> CalculateInverse(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;x) <span class="keyword">const</span>;00062 00063         <span class="comment">// GeneratibleCryptoMaterial</span>00064         <span class="keywordtype">bool</span> <a class="code" href="class_invertible_r_w_function.html#_invertible_r_w_functiona5">Validate</a>(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &amp;rng, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> level) <span class="keyword">const</span>;00065         <span class="keywordtype">bool</span> <a class="code" href="class_invertible_r_w_function.html#_invertible_r_w_functiona6">GetVoidValue</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">const</span> std::type_info &amp;valueType, <span class="keywordtype">void</span> *pValue) <span class="keyword">const</span>;00066         <span class="keywordtype">void</span> <a class="code" href="class_invertible_r_w_function.html#_invertible_r_w_functiona7">AssignFrom</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &amp;source);<span class="comment"></span>00067 <span class="comment">        /*! parameters: (ModulusSize) */</span>00068         <span class="keywordtype">void</span> <a class="code" href="class_invertible_r_w_function.html#_invertible_r_w_functiona8">GenerateRandom</a>(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &amp;rng, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &amp;alg);00069 00070         <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a>&amp; GetPrime1()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_p;}00071         <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a>&amp; GetPrime2()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_q;}00072         <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a>&amp; GetMultiplicativeInverseOfPrime2ModPrime1()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_u;}00073 00074         <span class="keywordtype">void</span> SetPrime1(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;p) {m_p = p;}00075         <span class="keywordtype">void</span> SetPrime2(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;q) {m_q = q;}00076         <span class="keywordtype">void</span> SetMultiplicativeInverseOfPrime2ModPrime1(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;u) {m_u = u;}00077 00078 <span class="keyword">protected</span>:00079         <a class="code" href="class_integer.html">Integer</a> m_p, m_q, m_u;00080 };00081 <span class="comment"></span>
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