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<h1>luc.h</h1><a href="luc_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef CRYPTOPP_LUC_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_LUC_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span><span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment">/** \file</span>
<a name="l00005"></a>00005 <span class="comment">*/</span>
<a name="l00006"></a>00006
<a name="l00007"></a>00007 <span class="preprocessor">#include "pkcspad.h"</span>
<a name="l00008"></a>00008 <span class="preprocessor">#include "oaep.h"</span>
<a name="l00009"></a>00009 <span class="preprocessor">#include "<a class="code" href="integer_8h.html">integer.h</a>"</span>
<a name="l00010"></a>00010 <span class="preprocessor">#include "<a class="code" href="dh_8h.html">dh.h</a>"</span>
<a name="l00011"></a>00011
<a name="l00012"></a>00012 <span class="preprocessor">#include <limits.h></span>
<a name="l00013"></a>00013
<a name="l00014"></a>00014 NAMESPACE_BEGIN(CryptoPP)
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="comment">//! The LUC function.</span>
<a name="l00017"></a>00017 <span class="comment"></span><span class="comment">/*! This class is here for historical and pedagogical interest. It has no</span>
<a name="l00018"></a>00018 <span class="comment"> practical advantages over other trapdoor functions and probably shouldn't</span>
<a name="l00019"></a>00019 <span class="comment"> be used in production software. The discrete log based LUC schemes</span>
<a name="l00020"></a>00020 <span class="comment"> defined later in this .h file may be of more practical interest.</span>
<a name="l00021"></a>00021 <span class="comment">*/</span>
<a name="l00022"></a><a class="code" href="class_l_u_c_function.html">00022</a> class <a class="code" href="class_l_u_c_function.html" title="The LUC function.">LUCFunction</a> : public <a class="code" href="class_trapdoor_function.html" title="_">TrapdoorFunction</a>, public <a class="code" href="class_public_key.html" title="interface for public keys">PublicKey</a>
<a name="l00023"></a>00023 {
<a name="l00024"></a>00024 <span class="keyword">typedef</span> <a class="code" href="class_l_u_c_function.html" title="The LUC function.">LUCFunction</a> <a class="code" href="class_l_u_c_function.html" title="The LUC function.">ThisClass</a>;
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="keyword">public</span>:
<a name="l00027"></a>00027 <span class="keywordtype">void</span> Initialize(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &n, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &e)
<a name="l00028"></a>00028 {m_n = n; m_e = e;}
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="keywordtype">void</span> BERDecode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt);
<a name="l00031"></a>00031 <span class="keywordtype">void</span> DEREncode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt) <span class="keyword">const</span>;
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> ApplyFunction(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &x) <span class="keyword">const</span>;
<a name="l00034"></a>00034 <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> PreimageBound()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_n;}
<a name="l00035"></a>00035 <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> ImageBound()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_n;}
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keywordtype">bool</span> Validate(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &rng, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> level) <span class="keyword">const</span>;
<a name="l00038"></a>00038 <span class="keywordtype">bool</span> GetVoidValue(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">const</span> std::type_info &valueType, <span class="keywordtype">void</span> *pValue) <span class="keyword">const</span>;
<a name="l00039"></a>00039 <span class="keywordtype">void</span> AssignFrom(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &source);
<a name="l00040"></a>00040
<a name="l00041"></a>00041 <span class="comment">// non-derived interface</span>
<a name="l00042"></a>00042 <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> & GetModulus()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_n;}
<a name="l00043"></a>00043 <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> & GetPublicExponent()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_e;}
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="keywordtype">void</span> SetModulus(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &n) {m_n = n;}
<a name="l00046"></a>00046 <span class="keywordtype">void</span> SetPublicExponent(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &e) {m_e = e;}
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="keyword">protected</span>:
<a name="l00049"></a>00049 <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> m_n, m_e;
<a name="l00050"></a>00050 };
<a name="l00051"></a>00051 <span class="comment"></span>
<a name="l00052"></a>00052 <span class="comment">//! _</span>
<a name="l00053"></a><a class="code" href="class_invertible_l_u_c_function.html">00053</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_invertible_l_u_c_function.html" title="_">InvertibleLUCFunction</a> : <span class="keyword">public</span> <a class="code" href="class_l_u_c_function.html" title="The LUC function.">LUCFunction</a>, <span class="keyword">public</span> <a class="code" href="class_trapdoor_function_inverse.html" title="_">TrapdoorFunctionInverse</a>, <span class="keyword">public</span> <a class="code" href="class_private_key.html" title="interface for private keys">PrivateKey</a>
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055 <span class="keyword">typedef</span> <a class="code" href="class_invertible_l_u_c_function.html" title="_">InvertibleLUCFunction</a> <a class="code" href="class_l_u_c_function.html" title="The LUC function.">ThisClass</a>;
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="keyword">public</span>:
<a name="l00058"></a>00058 <span class="keywordtype">void</span> Initialize(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &rng, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> modulusBits, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &eStart=17);
<a name="l00059"></a>00059 <span class="keywordtype">void</span> Initialize(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &n, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &e, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &p, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &q, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &u)
<a name="l00060"></a>00060 {m_n = n; m_e = e; m_p = p; m_q = q; m_u = u;}
<a name="l00061"></a>00061
<a name="l00062"></a>00062 <span class="keywordtype">void</span> BERDecode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt);
<a name="l00063"></a>00063 <span class="keywordtype">void</span> DEREncode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt) <span class="keyword">const</span>;
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> CalculateInverse(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &rng, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &x) <span class="keyword">const</span>;
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <span class="keywordtype">bool</span> <a class="code" href="class_invertible_l_u_c_function.html#ad6390a95a003eceef45cc238f538c4d8" title="check this object for errors">Validate</a>(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &rng, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> level) <span class="keyword">const</span>;
<a name="l00068"></a>00068 <span class="keywordtype">bool</span> <a class="code" href="class_invertible_l_u_c_function.html#a882c26c94e15ecb1added6f3fafae021" title="to be implemented by derived classes, users should use one of the above functions...">GetVoidValue</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">const</span> std::type_info &valueType, <span class="keywordtype">void</span> *pValue) <span class="keyword">const</span>;
<a name="l00069"></a>00069 <span class="keywordtype">void</span> <a class="code" href="class_invertible_l_u_c_function.html#aaaef1b335de1f76ec61079d1dfd78744" title="assign values from source to this object">AssignFrom</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &source);<span class="comment"></span>
<a name="l00070"></a>00070 <span class="comment"> /*! parameters: (ModulusSize, PublicExponent (default 17)) */</span>
<a name="l00071"></a>00071 <span class="keywordtype">void</span> <a class="code" href="class_invertible_l_u_c_function.html#af846ecc0f5e8d17267544920bc39f233">GenerateRandom</a>(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &rng, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &alg);
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="comment">// non-derived interface</span>
<a name="l00074"></a>00074 <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a>& GetPrime1()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_p;}
<a name="l00075"></a>00075 <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a>& GetPrime2()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_q;}
<a name="l00076"></a>00076 <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a>& GetMultiplicativeInverseOfPrime2ModPrime1()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_u;}
<a name="l00077"></a>00077
<a name="l00078"></a>00078 <span class="keywordtype">void</span> SetPrime1(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &p) {m_p = p;}
<a name="l00079"></a>00079 <span class="keywordtype">void</span> SetPrime2(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &q) {m_q = q;}
<a name="l00080"></a>00080 <span class="keywordtype">void</span> SetMultiplicativeInverseOfPrime2ModPrime1(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &u) {m_u = u;}
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="keyword">protected</span>:
<a name="l00083"></a>00083 <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> m_p, m_q, m_u;
<a name="l00084"></a>00084 };
<a name="l00085"></a>00085
<a name="l00086"></a><a class="code" href="struct_l_u_c.html">00086</a> <span class="keyword">struct </span><a class="code" href="struct_l_u_c.html">LUC</a>
<a name="l00087"></a>00087 {
<a name="l00088"></a>00088 <span class="keyword">static</span> std::string StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"LUC"</span>;}
<a name="l00089"></a>00089 <span class="keyword">typedef</span> <a class="code" href="class_l_u_c_function.html" title="The LUC function.">LUCFunction</a> <a class="code" href="class_l_u_c_function.html" title="The LUC function.">PublicKey</a>;
<a name="l00090"></a>00090 <span class="keyword">typedef</span> <a class="code" href="class_invertible_l_u_c_function.html" title="_">InvertibleLUCFunction</a> <a class="code" href="class_invertible_l_u_c_function.html" title="_">PrivateKey</a>;
<a name="l00091"></a>00091 };
<a name="l00092"></a>00092 <span class="comment"></span>
<a name="l00093"></a>00093 <span class="comment">//! LUC cryptosystem</span>
<a name="l00094"></a>00094 <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> STANDARD>
<a name="l00095"></a><a class="code" href="struct_l_u_c_e_s.html">00095</a> <span class="keyword">struct </span><a class="code" href="struct_l_u_c_e_s.html" title="LUC cryptosystem.">LUCES</a> : <span class="keyword">public</span> <a class="code" href="class_t_f___e_s.html" title="Trapdoor Function Based Encryption Scheme.">TF_ES</a><STANDARD, LUC>
<a name="l00096"></a>00096 {
<a name="l00097"></a>00097 };
<a name="l00098"></a>00098 <span class="comment"></span>
<a name="l00099"></a>00099 <span class="comment">//! LUC signature scheme with appendix</span>
<a name="l00100"></a>00100 <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> STANDARD, <span class="keyword">class</span> H>
<a name="l00101"></a><a class="code" href="struct_l_u_c_s_s.html">00101</a> <span class="keyword">struct </span><a class="code" href="struct_l_u_c_s_s.html" title="LUC signature scheme with appendix.">LUCSS</a> : <span class="keyword">public</span> <a class="code" href="class_t_f___s_s.html" title="Trapdoor Function Based Signature Scheme.">TF_SS</a><STANDARD, H, LUC>
<a name="l00102"></a>00102 {
<a name="l00103"></a>00103 };
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="comment">// analagous to the RSA schemes defined in PKCS #1 v2.0</span>
<a name="l00106"></a>00106 <span class="keyword">typedef</span> <a class="code" href="struct_l_u_c_e_s.html" title="LUC cryptosystem.">LUCES<OAEP<SHA></a> >::Decryptor <a class="code" href="class_p_k___final_template.html" title="A template implementing constructors for public key algorithm classes.">LUCES_OAEP_SHA_Decryptor</a>;
<a name="l00107"></a>00107 <span class="keyword">typedef</span> <a class="code" href="struct_l_u_c_e_s.html" title="LUC cryptosystem.">LUCES<OAEP<SHA></a> >::Encryptor <a class="code" href="class_p_k___final_template.html" title="A template implementing constructors for public key algorithm classes.">LUCES_OAEP_SHA_Encryptor</a>;
<a name="l00108"></a>00108
<a name="l00109"></a>00109 <span class="keyword">typedef</span> <a class="code" href="class_p_k___final_template.html" title="A template implementing constructors for public key algorithm classes.">LUCSS<PKCS1v15, SHA>::Signer</a> <a class="code" href="class_p_k___final_template.html" title="A template implementing constructors for public key algorithm classes.">LUCSSA_PKCS1v15_SHA_Signer</a>;
<a name="l00110"></a>00110 <span class="keyword">typedef</span> <a class="code" href="class_p_k___final_template.html" title="A template implementing constructors for public key algorithm classes.">LUCSS<PKCS1v15, SHA>::Verifier</a> <a class="code" href="class_p_k___final_template.html" title="A template implementing constructors for public key algorithm classes.">LUCSSA_PKCS1v15_SHA_Verifier</a>;
<a name="l00111"></a>00111
<a name="l00112"></a>00112 <span class="comment">// ********************************************************</span>
<a name="l00113"></a>00113
<a name="l00114"></a>00114 <span class="comment">// no actual precomputation</span>
<a name="l00115"></a><a class="code" href="class_d_l___group_precomputation___l_u_c.html">00115</a> <span class="keyword">class </span><a class="code" href="class_d_l___group_precomputation___l_u_c.html">DL_GroupPrecomputation_LUC</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___group_precomputation.html">DL_GroupPrecomputation</a><Integer>
<a name="l00116"></a>00116 {
<a name="l00117"></a>00117 <span class="keyword">public</span>:
<a name="l00118"></a>00118 <span class="keyword">const</span> <a class="code" href="class_abstract_group.html" title="Abstract Group.">AbstractGroup<Element></a> & GetGroup()<span class="keyword"> const </span>{assert(<span class="keyword">false</span>); <span class="keywordflow">throw</span> 0;}
<a name="l00119"></a>00119 <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Element</a> BERDecodeElement(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt)<span class="keyword"> const </span>{<span class="keywordflow">return</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a>(bt);}
<a name="l00120"></a>00120 <span class="keywordtype">void</span> DEREncodeElement(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Element</a> &v)<span class="keyword"> const </span>{v.<a class="code" href="class_integer.html#a6ab51a05bee88cfa690179611e8a084e" title="encode using Distinguished Encoding Rules, put result into a BufferedTransformation...">DEREncode</a>(bt);}
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="comment">// non-inherited</span>
<a name="l00123"></a>00123 <span class="keywordtype">void</span> SetModulus(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &v) {m_p = v;}
<a name="l00124"></a>00124 <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> & GetModulus()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_p;}
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="keyword">private</span>:
<a name="l00127"></a>00127 <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> m_p;
<a name="l00128"></a>00128 };
<a name="l00129"></a>00129 <span class="comment"></span>
<a name="l00130"></a>00130 <span class="comment">//! _</span>
<a name="l00131"></a><a class="code" href="class_d_l___base_precomputation___l_u_c.html">00131</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_d_l___base_precomputation___l_u_c.html" title="_">DL_BasePrecomputation_LUC</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___fixed_base_precomputation.html">DL_FixedBasePrecomputation</a><Integer>
<a name="l00132"></a>00132 {
<a name="l00133"></a>00133 <span class="keyword">public</span>:
<a name="l00134"></a>00134 <span class="comment">// DL_FixedBasePrecomputation</span>
<a name="l00135"></a>00135 <span class="keywordtype">bool</span> IsInitialized()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_g.NotZero();}
<a name="l00136"></a>00136 <span class="keywordtype">void</span> SetBase(<span class="keyword">const</span> <a class="code" href="class_d_l___group_precomputation.html">DL_GroupPrecomputation<Element></a> &group, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &base) {m_g = base;}
<a name="l00137"></a>00137 <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> & GetBase(<span class="keyword">const</span> <a class="code" href="class_d_l___group_precomputation.html">DL_GroupPrecomputation<Element></a> &group)<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_g;}
<a name="l00138"></a>00138 <span class="keywordtype">void</span> Precompute(<span class="keyword">const</span> <a class="code" href="class_d_l___group_precomputation.html">DL_GroupPrecomputation<Element></a> &group, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> maxExpBits, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> storage) {}
<a name="l00139"></a>00139 <span class="keywordtype">void</span> Load(<span class="keyword">const</span> <a class="code" href="class_d_l___group_precomputation.html">DL_GroupPrecomputation<Element></a> &group, <a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &storedPrecomputation) {}
<a name="l00140"></a>00140 <span class="keywordtype">void</span> Save(<span class="keyword">const</span> <a class="code" href="class_d_l___group_precomputation.html">DL_GroupPrecomputation<Element></a> &group, <a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &storedPrecomputation)<span class="keyword"> const </span>{}
<a name="l00141"></a>00141 <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> Exponentiate(<span class="keyword">const</span> <a class="code" href="class_d_l___group_precomputation.html">DL_GroupPrecomputation<Element></a> &group, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &exponent) <span class="keyword">const</span>;
<a name="l00142"></a>00142 <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> CascadeExponentiate(<span class="keyword">const</span> <a class="code" href="class_d_l___group_precomputation.html">DL_GroupPrecomputation<Element></a> &group, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &exponent, <span class="keyword">const</span> <a class="code" href="class_d_l___fixed_base_precomputation.html">DL_FixedBasePrecomputation<Integer></a> &pc2, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &exponent2)<span class="keyword"> const</span>
<a name="l00143"></a>00143 <span class="keyword"> </span>{<span class="keywordflow">throw</span> <a class="code" href="class_not_implemented.html" title="exception thrown by a class if a non-implemented method is called">NotImplemented</a>(<span class="stringliteral">"DL_BasePrecomputation_LUC: CascadeExponentiate not implemented"</span>);} <span class="comment">// shouldn't be called</span>
<a name="l00144"></a>00144
<a name="l00145"></a>00145 <span class="keyword">private</span>:
<a name="l00146"></a>00146 <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> m_g;
<a name="l00147"></a>00147 };
<a name="l00148"></a>00148 <span class="comment"></span>
<a name="l00149"></a>00149 <span class="comment">//! _</span>
<a name="l00150"></a><a class="code" href="class_d_l___group_parameters___l_u_c.html">00150</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_d_l___group_parameters___l_u_c.html" title="_">DL_GroupParameters_LUC</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___group_parameters___integer_based_impl.html" title="_">DL_GroupParameters_IntegerBasedImpl</a><DL_GroupPrecomputation_LUC, DL_BasePrecomputation_LUC>
<a name="l00151"></a>00151 {
<a name="l00152"></a>00152 <span class="keyword">public</span>:
<a name="l00153"></a>00153 <span class="comment">// DL_GroupParameters</span>
<a name="l00154"></a>00154 <span class="keywordtype">bool</span> IsIdentity(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &element)<span class="keyword"> const </span>{<span class="keywordflow">return</span> element == <a class="code" href="class_integer.html#af0cb74a45a48e677952166bdac9d82d7" title="avoid calling constructors for these frequently used integers">Integer::Two</a>();}
<a name="l00155"></a>00155 <span class="keywordtype">void</span> SimultaneousExponentiate(<a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Element</a> *results, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Element</a> &base, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> *exponents, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> exponentsCount) <span class="keyword">const</span>;
<a name="l00156"></a>00156 <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Element</a> MultiplyElements(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Element</a> &a, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Element</a> &b)<span class="keyword"> const</span>
<a name="l00157"></a>00157 <span class="keyword"> </span>{<span class="keywordflow">throw</span> <a class="code" href="class_not_implemented.html" title="exception thrown by a class if a non-implemented method is called">NotImplemented</a>(<span class="stringliteral">"LUC_GroupParameters: MultiplyElements can not be implemented"</span>);}
<a name="l00158"></a>00158 <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Element</a> CascadeExponentiate(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Element</a> &element1, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &exponent1, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Element</a> &element2, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &exponent2)<span class="keyword"> const</span>
<a name="l00159"></a>00159 <span class="keyword"> </span>{<span class="keywordflow">throw</span> <a class="code" href="class_not_implemented.html" title="exception thrown by a class if a non-implemented method is called">NotImplemented</a>(<span class="stringliteral">"LUC_GroupParameters: MultiplyElements can not be implemented"</span>);}
<a name="l00160"></a>00160
<a name="l00161"></a>00161 <span class="comment">// NameValuePairs interface</span>
<a name="l00162"></a><a class="code" href="class_d_l___group_parameters___l_u_c.html#a1fe69d1b816aafccc929ac5f17148330">00162</a> <span class="keywordtype">bool</span> <a class="code" href="class_d_l___group_parameters___l_u_c.html#a1fe69d1b816aafccc929ac5f17148330" title="to be implemented by derived classes, users should use one of the above functions...">GetVoidValue</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">const</span> std::type_info &valueType, <span class="keywordtype">void</span> *pValue)<span class="keyword"> const</span>
<a name="l00163"></a>00163 <span class="keyword"> </span>{
<a name="l00164"></a>00164 <span class="keywordflow">return</span> GetValueHelper<DL_GroupParameters_IntegerBased>(<span class="keyword">this</span>, name, valueType, pValue).Assignable();
<a name="l00165"></a>00165 }
<a name="l00166"></a>00166
<a name="l00167"></a>00167 <span class="keyword">private</span>:
<a name="l00168"></a>00168 <span class="keywordtype">int</span> GetFieldType()<span class="keyword"> const </span>{<span class="keywordflow">return</span> 2;}
<a name="l00169"></a>00169 };
<a name="l00170"></a>00170 <span class="comment"></span>
<a name="l00171"></a>00171 <span class="comment">//! _</span>
<a name="l00172"></a><a class="code" href="class_d_l___group_parameters___l_u_c___default_safe_prime.html">00172</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_d_l___group_parameters___l_u_c___default_safe_prime.html" title="_">DL_GroupParameters_LUC_DefaultSafePrime</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___group_parameters___l_u_c.html" title="_">DL_GroupParameters_LUC</a>
<a name="l00173"></a>00173 {
<a name="l00174"></a>00174 <span class="keyword">public</span>:
<a name="l00175"></a>00175 <span class="keyword">typedef</span> <a class="code" href="struct_enum_to_type.html">NoCofactorMultiplication</a> <a class="code" href="struct_enum_to_type.html">DefaultCofactorOption</a>;
<a name="l00176"></a>00176
<a name="l00177"></a>00177 <span class="keyword">protected</span>:
<a name="l00178"></a>00178 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> GetDefaultSubgroupOrderSize(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> modulusSize)<span class="keyword"> const </span>{<span class="keywordflow">return</span> modulusSize-1;}
<a name="l00179"></a>00179 };
<a name="l00180"></a>00180 <span class="comment"></span>
<a name="l00181"></a>00181 <span class="comment">//! _</span>
<a name="l00182"></a><a class="code" href="class_d_l___algorithm___l_u_c___h_m_p.html">00182</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_d_l___algorithm___l_u_c___h_m_p.html" title="_">DL_Algorithm_LUC_HMP</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___elgamal_like_signature_algorithm.html" title="interface for Elgamal-like signature algorithms">DL_ElgamalLikeSignatureAlgorithm</a><Integer>
<a name="l00183"></a>00183 {
<a name="l00184"></a>00184 <span class="keyword">public</span>:
<a name="l00185"></a>00185 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> * StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"LUC-HMP"</span>;}
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="keywordtype">void</span> Sign(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters.html">DL_GroupParameters<Integer></a> &params, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &x, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &k, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &e, <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &r, <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &s) <span class="keyword">const</span>;
<a name="l00188"></a>00188 <span class="keywordtype">bool</span> Verify(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters.html">DL_GroupParameters<Integer></a> &params, <span class="keyword">const</span> <a class="code" href="class_d_l___public_key.html" title="interface for DL public keys">DL_PublicKey<Integer></a> &publicKey, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &e, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &r, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &s) <span class="keyword">const</span>;
<a name="l00189"></a>00189
<a name="l00190"></a>00190 <span class="keywordtype">size_t</span> RLen(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters.html">DL_GroupParameters<Integer></a> &params)<span class="keyword"> const</span>
<a name="l00191"></a>00191 <span class="keyword"> </span>{<span class="keywordflow">return</span> params.GetGroupOrder().<a class="code" href="class_integer.html#aea4f2d31725ab02c67d9ea0288767670" title="number of significant bytes = ceiling(BitCount()/8)">ByteCount</a>();}
<a name="l00192"></a>00192 };
<a name="l00193"></a>00193 <span class="comment"></span>
<a name="l00194"></a>00194 <span class="comment">//! _</span>
<a name="l00195"></a><a class="code" href="struct_d_l___signature_keys___l_u_c.html">00195</a> <span class="comment"></span><span class="keyword">struct </span><a class="code" href="struct_d_l___signature_keys___l_u_c.html" title="_">DL_SignatureKeys_LUC</a>
<a name="l00196"></a>00196 {
<a name="l00197"></a>00197 <span class="keyword">typedef</span> <a class="code" href="class_d_l___group_parameters___l_u_c.html" title="_">DL_GroupParameters_LUC</a> <a class="code" href="class_d_l___group_parameters___l_u_c.html" title="_">GroupParameters</a>;
<a name="l00198"></a>00198 <span class="keyword">typedef</span> <a class="code" href="class_d_l___public_key___g_f_p.html">DL_PublicKey_GFP<GroupParameters></a> <a class="code" href="class_d_l___public_key___g_f_p.html">PublicKey</a>;
<a name="l00199"></a>00199 <span class="keyword">typedef</span> <a class="code" href="class_d_l___private_key___g_f_p.html" title="DL private key (in GF(p) groups).">DL_PrivateKey_GFP<GroupParameters></a> <a class="code" href="class_d_l___private_key___g_f_p.html" title="DL private key (in GF(p) groups).">PrivateKey</a>;
<a name="l00200"></a>00200 };
<a name="l00201"></a>00201 <span class="comment"></span>
<a name="l00202"></a>00202 <span class="comment">//! LUC-HMP, based on "Digital signature schemes based on Lucas functions" by Patrick Horster, Markus Michels, Holger Petersen</span>
<a name="l00203"></a>00203 <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> H>
<a name="l00204"></a><a class="code" href="struct_l_u_c___h_m_p.html">00204</a> <span class="keyword">struct </span><a class="code" href="struct_l_u_c___h_m_p.html" title="LUC-HMP, based on &quot;Digital signature schemes based on Lucas functions&quot;...">LUC_HMP</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___s_s.html" title="Discrete Log Based Signature Scheme.">DL_SS</a><DL_SignatureKeys_LUC, DL_Algorithm_LUC_HMP, DL_SignatureMessageEncodingMethod_DSA, H>
<a name="l00205"></a>00205 {
<a name="l00206"></a>00206 };
<a name="l00207"></a>00207 <span class="comment"></span>
<a name="l00208"></a>00208 <span class="comment">//! _</span>
<a name="l00209"></a><a class="code" href="struct_d_l___crypto_keys___l_u_c.html">00209</a> <span class="comment"></span><span class="keyword">struct </span><a class="code" href="struct_d_l___crypto_keys___l_u_c.html" title="_">DL_CryptoKeys_LUC</a>
<a name="l00210"></a>00210 {
<a name="l00211"></a>00211 <span class="keyword">typedef</span> <a class="code" href="class_d_l___group_parameters___l_u_c___default_safe_prime.html" title="_">DL_GroupParameters_LUC_DefaultSafePrime</a> <a class="code" href="class_d_l___group_parameters___l_u_c___default_safe_prime.html" title="_">GroupParameters</a>;
<a name="l00212"></a>00212 <span class="keyword">typedef</span> <a class="code" href="class_d_l___public_key___g_f_p.html">DL_PublicKey_GFP<GroupParameters></a> <a class="code" href="class_d_l___public_key___g_f_p.html">PublicKey</a>;
<a name="l00213"></a>00213 <span class="keyword">typedef</span> <a class="code" href="class_d_l___private_key___g_f_p.html" title="DL private key (in GF(p) groups).">DL_PrivateKey_GFP<GroupParameters></a> <a class="code" href="class_d_l___private_key___g_f_p.html" title="DL private key (in GF(p) groups).">PrivateKey</a>;
<a name="l00214"></a>00214 };
<a name="l00215"></a>00215 <span class="comment"></span>
<a name="l00216"></a>00216 <span class="comment">//! LUC-IES</span>
<a name="l00217"></a>00217 <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> COFACTOR_OPTION = NoCofactorMultiplication, <span class="keywordtype">bool</span> DHAES_MODE = true>
<a name="l00218"></a><a class="code" href="struct_l_u_c___i_e_s.html">00218</a> <span class="keyword">struct </span><a class="code" href="struct_l_u_c___i_e_s.html" title="LUC-IES.">LUC_IES</a>
<a name="l00219"></a>00219 : <span class="keyword">public</span> <a class="code" href="class_d_l___e_s.html" title="Discrete Log Based Encryption Scheme.">DL_ES</a><
<a name="l00220"></a>00220 DL_CryptoKeys_LUC,
<a name="l00221"></a>00221 DL_KeyAgreementAlgorithm_DH<Integer, COFACTOR_OPTION>,
<a name="l00222"></a>00222 DL_KeyDerivationAlgorithm_P1363<Integer, DHAES_MODE, P1363_KDF2<SHA1> >,
<a name="l00223"></a>00223 DL_EncryptionAlgorithm_Xor<HMAC<SHA1>, DHAES_MODE>,
<a name="l00224"></a>00224 LUC_IES<> >
<a name="l00225"></a>00225 {
<a name="l00226"></a>00226 <span class="keyword">static</span> std::string StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"LUC-IES"</span>;} <span class="comment">// non-standard name</span>
<a name="l00227"></a>00227 };
<a name="l00228"></a>00228
<a name="l00229"></a>00229 <span class="comment">// ********************************************************</span>
<a name="l00230"></a>00230 <span class="comment"></span>
<a name="l00231"></a>00231 <span class="comment">//! LUC-DH</span>
<a name="l00232"></a><a class="code" href="luc_8h.html#ab2c863cff24e8c956e82635d3f7c0ffb">00232</a> <span class="comment"></span><span class="keyword">typedef</span> <a class="code" href="class_d_h___domain.html" title=",">DH_Domain<DL_GroupParameters_LUC_DefaultSafePrime></a> <a class="code" href="class_d_h___domain.html" title=",">LUC_DH</a>;
<a name="l00233"></a>00233
<a name="l00234"></a>00234 NAMESPACE_END
<a name="l00235"></a>00235
<a name="l00236"></a>00236 <span class="preprocessor">#endif</span>
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