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<!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++: DL_GroupParameters< T > Class Template Reference</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 class="current"><a href="classes.html"><span>Classes</span></a></li> <li><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="classes.html"><span>Alphabetical List</span></a></li> <li><a href="annotated.html"><span>Class List</span></a></li> <li><a href="hierarchy.html"><span>Class Hierarchy</span></a></li> <li><a href="functions.html"><span>Class Members</span></a></li> </ul></div><h1>DL_GroupParameters< T > Class Template Reference</h1><!-- doxytag: class="DL_GroupParameters" --><!-- doxytag: inherits="CryptoParameters" --><code>#include <<a class="el" href="pubkey_8h-source.html">pubkey.h</a>></code><p><p>Inheritance diagram for DL_GroupParameters< T >:<p><center><img src="class_d_l___group_parameters.png" usemap="#DL_GroupParameters< T >_map" border="0" alt=""></center><map name="DL_GroupParameters< T >_map"><area href="class_crypto_parameters.html" alt="CryptoParameters" shape="rect" coords="0,168,165,192"><area href="class_generatable_crypto_material.html" alt="GeneratableCryptoMaterial" shape="rect" coords="0,112,165,136"><area href="class_crypto_material.html" alt="CryptoMaterial" shape="rect" coords="0,56,165,80"><area href="class_name_value_pairs.html" alt="NameValuePairs" shape="rect" coords="0,0,165,24"></map><a href="class_d_l___group_parameters-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2><h3>template<class T><br> class DL_GroupParameters< T ></h3>interface for DL group parameters <p><p>Definition at line <a class="el" href="pubkey_8h-source.html#l00521">521</a> of file <a class="el" href="pubkey_8h-source.html">pubkey.h</a>.<table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Public Types</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="571dc0fc769ed7fa2037f70681cb94c7"></a><!-- doxytag: member="DL_GroupParameters::Element" ref="571dc0fc769ed7fa2037f70681cb94c7" args="" -->typedef T </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a></td></tr><tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ba42475bcf502dbdad0ae0d9e4cc280e"></a><!-- doxytag: member="DL_GroupParameters::DL_GroupParameters" ref="ba42475bcf502dbdad0ae0d9e4cc280e" args="()" --> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html#ba42475bcf502dbdad0ae0d9e4cc280e">DL_GroupParameters</a> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html#1f25ebabec85af46cf34e2239f9612e3">Validate</a> (<a class="el" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, unsigned int level) const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">check this object for errors <a href="#1f25ebabec85af46cf34e2239f9612e3"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="e782187e2221e3dc0a00d49116ec7df5"></a><!-- doxytag: member="DL_GroupParameters::GetVoidValue" ref="e782187e2221e3dc0a00d49116ec7df5" args="(const char *name, const std::type_info &valueType, void *pValue) const " -->bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html#e782187e2221e3dc0a00d49116ec7df5">GetVoidValue</a> (const char *name, const std::type_info &valueType, void *pValue) const </td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">to be implemented by derived classes, users should use one of the above functions instead <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="16618ee944a0d680a557933cb05c72eb"></a><!-- doxytag: member="DL_GroupParameters::SupportsPrecomputation" ref="16618ee944a0d680a557933cb05c72eb" args="() const" -->bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html#16618ee944a0d680a557933cb05c72eb">SupportsPrecomputation</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight"><dl class="return" compact><dt><b>Returns:</b></dt><dd>whether this object supports precomputation </dd></dl><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html#5f04ae8b4d0b9410a046af1607fbbb6f">Precompute</a> (unsigned int precomputationStorage=16)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">do precomputation <a href="#5f04ae8b4d0b9410a046af1607fbbb6f"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="9b8c93a87802ef09dc546a994c850697"></a><!-- doxytag: member="DL_GroupParameters::LoadPrecomputation" ref="9b8c93a87802ef09dc546a994c850697" args="(BufferedTransformation &storedPrecomputation)" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html#9b8c93a87802ef09dc546a994c850697">LoadPrecomputation</a> (<a class="el" href="class_buffered_transformation.html">BufferedTransformation</a> &storedPrecomputation)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">retrieve previously saved precomputation <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="443eb0933235d77d09da6bc7da24c74c"></a><!-- doxytag: member="DL_GroupParameters::SavePrecomputation" ref="443eb0933235d77d09da6bc7da24c74c" args="(BufferedTransformation &storedPrecomputation) const " -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html#443eb0933235d77d09da6bc7da24c74c">SavePrecomputation</a> (<a class="el" href="class_buffered_transformation.html">BufferedTransformation</a> &storedPrecomputation) const </td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">save precomputation for later use <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="8537f155cb10263bf7014ad676d1c70b"></a><!-- doxytag: member="DL_GroupParameters::GetSubgroupGenerator" ref="8537f155cb10263bf7014ad676d1c70b" args="() const" -->virtual const <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html#8537f155cb10263bf7014ad676d1c70b">GetSubgroupGenerator</a> () const</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="1a1a563684f26dc72c212fb3d7b4173d"></a><!-- doxytag: member="DL_GroupParameters::SetSubgroupGenerator" ref="1a1a563684f26dc72c212fb3d7b4173d" args="(const Element &base)" -->virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html#1a1a563684f26dc72c212fb3d7b4173d">SetSubgroupGenerator</a> (const <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> &base)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="a49341ced39e6ce13f00eae0c2faad87"></a><!-- doxytag: member="DL_GroupParameters::ExponentiateBase" ref="a49341ced39e6ce13f00eae0c2faad87" args="(const Integer &exponent) const " -->virtual <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html#a49341ced39e6ce13f00eae0c2faad87">ExponentiateBase</a> (const <a class="el" href="class_integer.html">Integer</a> &exponent) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="0b49c5d4dbe0b8de7b967d5c6c78e712"></a><!-- doxytag: member="DL_GroupParameters::ExponentiateElement" ref="0b49c5d4dbe0b8de7b967d5c6c78e712" args="(const Element &base, const Integer &exponent) const " -->virtual <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html#0b49c5d4dbe0b8de7b967d5c6c78e712">ExponentiateElement</a> (const <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> &base, const <a class="el" href="class_integer.html">Integer</a> &exponent) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="94745e2e9fc76846947da64105c7379d"></a><!-- doxytag: member="DL_GroupParameters::GetGroupPrecomputation" ref="94745e2e9fc76846947da64105c7379d" args="() const=0" -->virtual const <a class="el" href="class_d_l___group_precomputation.html">DL_GroupPrecomputation</a><<br> <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> > & </td><td class="memItemRight" valign="bottom"><b>GetGroupPrecomputation</b> () const=0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="f06d99ba263c4c4ec333c89e4d5e0e50"></a><!-- doxytag: member="DL_GroupParameters::GetBasePrecomputation" ref="f06d99ba263c4c4ec333c89e4d5e0e50" args="() const=0" -->virtual const <a class="el" href="class_d_l___fixed_base_precomputation.html">DL_FixedBasePrecomputation</a><<br> <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> > & </td><td class="memItemRight" valign="bottom"><b>GetBasePrecomputation</b> () const=0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="812c5fc65e7872b5dc004dfb463eafcd"></a><!-- doxytag: member="DL_GroupParameters::AccessBasePrecomputation" ref="812c5fc65e7872b5dc004dfb463eafcd" args="()=0" -->virtual <a class="el" href="class_d_l___fixed_base_precomputation.html">DL_FixedBasePrecomputation</a><<br> <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> > & </td><td class="memItemRight" valign="bottom"><b>AccessBasePrecomputation</b> ()=0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="3555cec872358c0f314a375f56119c99"></a><!-- doxytag: member="DL_GroupParameters::GetSubgroupOrder" ref="3555cec872358c0f314a375f56119c99" args="() const=0" -->virtual const <a class="el" href="class_integer.html">Integer</a> & </td><td class="memItemRight" valign="bottom"><b>GetSubgroupOrder</b> () const=0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="926024f8e1673c9753048626f90b6529"></a><!-- doxytag: member="DL_GroupParameters::GetMaxExponent" ref="926024f8e1673c9753048626f90b6529" args="() const=0" -->virtual <a class="el" href="class_integer.html">Integer</a> </td><td class="memItemRight" valign="bottom"><b>GetMaxExponent</b> () const=0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="5b8ca75b306fa0d41821ef276e876c1c"></a><!-- doxytag: member="DL_GroupParameters::GetGroupOrder" ref="5b8ca75b306fa0d41821ef276e876c1c" args="() const" -->virtual <a class="el" href="class_integer.html">Integer</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html#5b8ca75b306fa0d41821ef276e876c1c">GetGroupOrder</a> () const</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="1a7a2e50499872d2be408aa36621bf91"></a><!-- doxytag: member="DL_GroupParameters::GetCofactor" ref="1a7a2e50499872d2be408aa36621bf91" args="() const" -->virtual <a class="el" href="class_integer.html">Integer</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html#1a7a2e50499872d2be408aa36621bf91">GetCofactor</a> () const</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="8ef60e89b4f1cc0b72f672c19ed43fc7"></a><!-- doxytag: member="DL_GroupParameters::GetEncodedElementSize" ref="8ef60e89b4f1cc0b72f672c19ed43fc7" args="(bool reversible) const =0" -->virtual unsigned int </td><td class="memItemRight" valign="bottom"><b>GetEncodedElementSize</b> (bool reversible) const =0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="71c6058bd5ddcd54bd36565b0ba0cae0"></a><!-- doxytag: member="DL_GroupParameters::EncodeElement" ref="71c6058bd5ddcd54bd36565b0ba0cae0" args="(bool reversible, const Element &element, byte *encoded) const =0" -->virtual void </td><td class="memItemRight" valign="bottom"><b>EncodeElement</b> (bool reversible, const <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> &element, byte *encoded) const =0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="f3dc6d48394c356bb30dc72371aa02e7"></a><!-- doxytag: member="DL_GroupParameters::DecodeElement" ref="f3dc6d48394c356bb30dc72371aa02e7" args="(const byte *encoded, bool checkForGroupMembership) const =0" -->virtual <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> </td><td class="memItemRight" valign="bottom"><b>DecodeElement</b> (const byte *encoded, bool checkForGroupMembership) const =0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="fb36d983bb45fe3b8acb1767c0060700"></a><!-- doxytag: member="DL_GroupParameters::ConvertElementToInteger" ref="fb36d983bb45fe3b8acb1767c0060700" args="(const Element &element) const =0" -->virtual <a class="el" href="class_integer.html">Integer</a> </td><td class="memItemRight" valign="bottom"><b>ConvertElementToInteger</b> (const <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> &element) const =0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="80dce8d6ad22b03c47a755bd063d8d94"></a><!-- doxytag: member="DL_GroupParameters::ValidateGroup" ref="80dce8d6ad22b03c47a755bd063d8d94" args="(RandomNumberGenerator &rng, unsigned int level) const=0" -->virtual bool </td><td class="memItemRight" valign="bottom"><b>ValidateGroup</b> (<a class="el" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, unsigned int level) const=0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="1e6cc62adbecdd858be49f6f4db15f50"></a><!-- doxytag: member="DL_GroupParameters::ValidateElement" ref="1e6cc62adbecdd858be49f6f4db15f50" args="(unsigned int level, const Element &element, const DL_FixedBasePrecomputation< Element > *precomp) const =0" -->virtual bool </td><td class="memItemRight" valign="bottom"><b>ValidateElement</b> (unsigned int level, const <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> &element, const <a class="el" href="class_d_l___fixed_base_precomputation.html">DL_FixedBasePrecomputation</a>< <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> > *precomp) const =0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="7376a84c8a7d91208f18a2d587b50110"></a><!-- doxytag: member="DL_GroupParameters::FastSubgroupCheckAvailable" ref="7376a84c8a7d91208f18a2d587b50110" args="() const=0" -->virtual bool </td><td class="memItemRight" valign="bottom"><b>FastSubgroupCheckAvailable</b> () const=0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="fb67ae388bba22447e45a74f87b2630b"></a><!-- doxytag: member="DL_GroupParameters::IsIdentity" ref="fb67ae388bba22447e45a74f87b2630b" args="(const Element &element) const =0" -->virtual bool </td><td class="memItemRight" valign="bottom"><b>IsIdentity</b> (const <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> &element) const =0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="c11607926a66ce8ba8ae273a5b0464e7"></a><!-- doxytag: member="DL_GroupParameters::SimultaneousExponentiate" ref="c11607926a66ce8ba8ae273a5b0464e7" args="(Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const =0" -->virtual void </td><td class="memItemRight" valign="bottom"><b>SimultaneousExponentiate</b> (<a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> *results, const <a class="el" href="class_d_l___group_parameters.html#571dc0fc769ed7fa2037f70681cb94c7">Element</a> &base, const <a class="el" href="class_integer.html">Integer</a> *exponents, unsigned int exponentsCount) const =0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_generatable_crypto_material.html#be368b52db1ca7079b690f2d6e605f7a">GenerateRandom</a> (<a class="el" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, const <a class="el" href="class_name_value_pairs.html">NameValuePairs</a> &params=<a class="el" href="cryptlib_8h.html#d3205973dd1afa14090a683154c1109c">g_nullNameValuePairs</a>)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">generate a random key or crypto parameters <a href="#be368b52db1ca7079b690f2d6e605f7a"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="38d492343c32e530a5c2781b5797f755"></a><!-- doxytag: member="DL_GroupParameters::GenerateRandomWithKeySize" ref="38d492343c32e530a5c2781b5797f755" args="(RandomNumberGenerator &rng, unsigned int keySize)" -->⌨️ 快捷键说明
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