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<div id="projectname">Crypto++
 <span id="projectnumber">7.0</span>
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<div id="projectbrief">Free C++ class library of cryptographic schemes</div>
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<div class="title">pubkey.h File Reference</div> </div>
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<p>This file contains helper classes/functions for implementing public key algorithms.
<a href="#details">More...</a></p>
<p><a href="pubkey_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_trapdoor_function_bounds.html">TrapdoorFunctionBounds</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Provides range for plaintext and ciphertext lengths. <a href="class_trapdoor_function_bounds.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_randomized_trapdoor_function.html">RandomizedTrapdoorFunction</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Applies the trapdoor function, using random data if required. <a href="class_randomized_trapdoor_function.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_trapdoor_function.html">TrapdoorFunction</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Applies the trapdoor function. <a href="class_trapdoor_function.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_randomized_trapdoor_function_inverse.html">RandomizedTrapdoorFunctionInverse</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Applies the inverse of the trapdoor function, using random data if required. <a href="class_randomized_trapdoor_function_inverse.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_trapdoor_function_inverse.html">TrapdoorFunctionInverse</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Applies the inverse of the trapdoor function. <a href="class_trapdoor_function_inverse.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___encryption_message_encoding_method.html">PK_EncryptionMessageEncodingMethod</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Message encoding method for public key encryption. <a href="class_p_k___encryption_message_encoding_method.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___base.html">TF_Base< TFI, MEI ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">The base for trapdoor based cryptosystems. <a href="class_t_f___base.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___fixed_length_crypto_system_impl.html">PK_FixedLengthCryptoSystemImpl< BASE ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Public key trapdoor function default implementation. <a href="class_p_k___fixed_length_crypto_system_impl.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___crypto_system_base.html">TF_CryptoSystemBase< INTFACE, BASE ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor function cryptosystem base class. <a href="class_t_f___crypto_system_base.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___decryptor_base.html">TF_DecryptorBase</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor function cryptosystems decryption base class. <a href="class_t_f___decryptor_base.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___encryptor_base.html">TF_EncryptorBase</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor function cryptosystems encryption base class. <a href="class_t_f___encryptor_base.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___signature_message_encoding_method.html">PK_SignatureMessageEncodingMethod</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for message encoding method for public key signature schemes. <a href="class_p_k___signature_message_encoding_method.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_p_k___signature_message_encoding_method_1_1_hash_identifier_lookup.html">PK_SignatureMessageEncodingMethod::HashIdentifierLookup</a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_p_k___signature_message_encoding_method_1_1_hash_identifier_lookup_1_1_hash_identifier_lookup2.html">PK_SignatureMessageEncodingMethod::HashIdentifierLookup::HashIdentifierLookup2< H ></a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___deterministic_signature_message_encoding_method.html">PK_DeterministicSignatureMessageEncodingMethod</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for message encoding method for public key signature schemes. <a href="class_p_k___deterministic_signature_message_encoding_method.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___recoverable_signature_message_encoding_method.html">PK_RecoverableSignatureMessageEncodingMethod</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for message encoding method for public key signature schemes. <a href="class_p_k___recoverable_signature_message_encoding_method.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___signature_message_encoding_method___d_s_a.html">DL_SignatureMessageEncodingMethod_DSA</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for message encoding method for public key signature schemes. <a href="class_d_l___signature_message_encoding_method___d_s_a.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___signature_message_encoding_method___n_r.html">DL_SignatureMessageEncodingMethod_NR</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for message encoding method for public key signature schemes. <a href="class_d_l___signature_message_encoding_method___n_r.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___message_accumulator_base.html">PK_MessageAccumulatorBase</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for message encoding method for public key signature schemes. <a href="class_p_k___message_accumulator_base.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___message_accumulator_impl.html">PK_MessageAccumulatorImpl< HASH_ALGORITHM ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for message encoding method for public key signature schemes. <a href="class_p_k___message_accumulator_impl.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___signature_scheme_base.html">TF_SignatureSchemeBase< INTFACE, BASE ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) Signature Scheme base class. <a href="class_t_f___signature_scheme_base.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___signer_base.html">TF_SignerBase</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) Signer base class. <a href="class_t_f___signer_base.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___verifier_base.html">TF_VerifierBase</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) Verifier base class. <a href="class_t_f___verifier_base.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_t_f___crypto_scheme_options.html">TF_CryptoSchemeOptions< T1, T2, T3 ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) scheme options. <a href="struct_t_f___crypto_scheme_options.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_t_f___signature_scheme_options.html">TF_SignatureSchemeOptions< T1, T2, T3, T4 ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) signature scheme options. <a href="struct_t_f___signature_scheme_options.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___object_impl_base.html">TF_ObjectImplBase< BASE, SCHEME_OPTIONS, KEY_CLASS ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) base implementation. <a href="class_t_f___object_impl_base.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___object_impl_ext_ref.html">TF_ObjectImplExtRef< BASE, SCHEME_OPTIONS, KEY ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) signature with external reference. <a href="class_t_f___object_impl_ext_ref.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___object_impl.html">TF_ObjectImpl< BASE, SCHEME_OPTIONS, KEY_CLASS ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) signature scheme options. <a href="class_t_f___object_impl.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___decryptor_impl.html">TF_DecryptorImpl< SCHEME_OPTIONS ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) decryptor options. <a href="class_t_f___decryptor_impl.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___encryptor_impl.html">TF_EncryptorImpl< SCHEME_OPTIONS ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) encryptor options. <a href="class_t_f___encryptor_impl.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___signer_impl.html">TF_SignerImpl< SCHEME_OPTIONS ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) encryptor options. <a href="class_t_f___signer_impl.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___verifier_impl.html">TF_VerifierImpl< SCHEME_OPTIONS ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) encryptor options. <a href="class_t_f___verifier_impl.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_mask_generating_function.html">MaskGeneratingFunction</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Mask generation function interface. <a href="class_mask_generating_function.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p1363___m_g_f1.html">P1363_MGF1</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">P1363 mask generation function. <a href="class_p1363___m_g_f1.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p1363___k_d_f2.html">P1363_KDF2< H ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">P1363 key derivation function. <a href="class_p1363___k_d_f2.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___bad_element.html">DL_BadElement</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="class_exception.html" title="Base class for all exceptions thrown by the library. ">Exception</a> thrown when an invalid group element is encountered. <a href="class_d_l___bad_element.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters.html">DL_GroupParameters< T ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for Discrete Log (DL) group parameters. <a href="class_d_l___group_parameters.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___group_parameters_impl.html">DL_GroupParametersImpl< GROUP_PRECOMP, BASE_PRECOMP, BASE ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Base implementation of Discrete Log (DL) group parameters. <a href="class_d_l___group_parameters_impl.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___key.html">DL_Key< T ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Base class for a Discrete Log (DL) key. <a href="class_d_l___key.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___public_key.html">DL_PublicKey< T ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for Discrete Log (DL) public keys. <a href="class_d_l___public_key.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___private_key.html">DL_PrivateKey< T ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for Discrete Log (DL) private keys. <a href="class_d_l___private_key.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___key_impl.html">DL_KeyImpl< PK, GP, O ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) key base implementation. <a href="class_d_l___key_impl.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___private_key_impl.html">DL_PrivateKeyImpl< GP ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) private key base implementation. <a href="class_d_l___private_key_impl.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___private_key___with_signature_pairwise_consistency_test.html">DL_PrivateKey_WithSignaturePairwiseConsistencyTest< BASE, SIGNATURE_SCHEME ></a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___public_key_impl.html">DL_PublicKeyImpl< GP ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) public key base implementation. <a href="class_d_l___public_key_impl.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___elgamal_like_signature_algorithm.html">DL_ElgamalLikeSignatureAlgorithm< T ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for Elgamal-like signature algorithms. <a href="class_d_l___elgamal_like_signature_algorithm.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_deterministic_signature_algorithm.html">DeterministicSignatureAlgorithm</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for deterministic signers. <a href="class_deterministic_signature_algorithm.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___key_agreement_algorithm.html">DL_KeyAgreementAlgorithm< T ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for DL key agreement algorithms. <a href="class_d_l___key_agreement_algorithm.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___key_derivation_algorithm.html">DL_KeyDerivationAlgorithm< T ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for key derivation algorithms used in DL cryptosystems. <a href="class_d_l___key_derivation_algorithm.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___symmetric_encryption_algorithm.html">DL_SymmetricEncryptionAlgorithm</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Interface for symmetric encryption algorithms used in DL cryptosystems. <a href="class_d_l___symmetric_encryption_algorithm.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___base.html">DL_Base< KI ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) base interface. <a href="class_d_l___base.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___signature_scheme_base.html">DL_SignatureSchemeBase< INTFACE, KEY_INTFACE ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) signature scheme base implementation. <a href="class_d_l___signature_scheme_base.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___signer_base.html">DL_SignerBase< T ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) signature scheme signer base implementation. <a href="class_d_l___signer_base.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___verifier_base.html">DL_VerifierBase< T ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discret Log (DL) Verifier base class. <a href="class_d_l___verifier_base.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___crypto_system_base.html">DL_CryptoSystemBase< PK, KI ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) cryptosystem base implementation. <a href="class_d_l___crypto_system_base.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___decryptor_base.html">DL_DecryptorBase< T ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) decryptor base implementation. <a href="class_d_l___decryptor_base.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___encryptor_base.html">DL_EncryptorBase< T ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) encryptor base implementation. <a href="class_d_l___encryptor_base.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_d_l___scheme_options_base.html">DL_SchemeOptionsBase< T1, T2 ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) scheme options. <a href="struct_d_l___scheme_options_base.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_d_l___keyed_scheme_options.html">DL_KeyedSchemeOptions< T1, T2 ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) key options. <a href="struct_d_l___keyed_scheme_options.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_d_l___signature_scheme_options.html">DL_SignatureSchemeOptions< T1, T2, T3, T4, T5 ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) signature scheme options. <a href="struct_d_l___signature_scheme_options.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_d_l___crypto_scheme_options.html">DL_CryptoSchemeOptions< T1, T2, T3, T4, T5 ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) crypto scheme options. <a href="struct_d_l___crypto_scheme_options.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___object_impl_base.html">DL_ObjectImplBase< BASE, SCHEME_OPTIONS, KEY ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) base object implementation. <a href="class_d_l___object_impl_base.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___object_impl.html">DL_ObjectImpl< BASE, SCHEME_OPTIONS, KEY ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) object implementation. <a href="class_d_l___object_impl.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___signer_impl.html">DL_SignerImpl< SCHEME_OPTIONS ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) signer implementation. <a href="class_d_l___signer_impl.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___verifier_impl.html">DL_VerifierImpl< SCHEME_OPTIONS ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) verifier implementation. <a href="class_d_l___verifier_impl.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___encryptor_impl.html">DL_EncryptorImpl< SCHEME_OPTIONS ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) encryptor implementation. <a href="class_d_l___encryptor_impl.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___decryptor_impl.html">DL_DecryptorImpl< SCHEME_OPTIONS ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) decryptor implementation. <a href="class_d_l___decryptor_impl.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___simple_key_agreement_domain_base.html">DL_SimpleKeyAgreementDomainBase< T ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) simple key agreement base implementation. <a href="class_d_l___simple_key_agreement_domain_base.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___key_agreement_algorithm___d_h.html">DL_KeyAgreementAlgorithm_DH< ELEMENT, COFACTOR_OPTION ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Diffie-Hellman key agreement algorithm. <a href="class_d_l___key_agreement_algorithm___d_h.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___final_template.html">PK_FinalTemplate< BASE ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Template implementing constructors for public key algorithm classes. <a href="class_p_k___final_template.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_encryption_standard.html">EncryptionStandard</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Base class for public key encryption standard classes. <a href="struct_encryption_standard.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_signature_standard.html">SignatureStandard</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Base class for public key signature standard classes. <a href="struct_signature_standard.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___e_s.html">TF_ES< KEYS, STANDARD, ALG_INFO ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) encryption scheme. <a href="class_t_f___e_s.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___e_s.html">TF_ES< KEYS, STANDARD, ALG_INFO ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) encryption scheme. <a href="class_t_f___e_s.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___s_s.html">TF_SS< KEYS, STANDARD, H, ALG_INFO ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) Signature Scheme. <a href="class_t_f___s_s.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___s_s.html">TF_SS< KEYS, STANDARD, H, ALG_INFO ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Trapdoor Function (TF) Signature Scheme. <a href="class_t_f___s_s.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___s_s.html">DL_SS< KEYS, SA, MEM, H, ALG_INFO ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) signature scheme. <a href="class_d_l___s_s.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___s_s.html">DL_SS< KEYS, SA, MEM, H, ALG_INFO ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) signature scheme. <a href="class_d_l___s_s.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_l___e_s.html">DL_ES< KEYS, AA, DA, EA, ALG_INFO ></a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Discrete Log (DL) encryption scheme. <a href="class_d_l___e_s.html#details">More...</a><br /></td></tr>
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Macros</h2></td></tr>
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#define </td><td class="memItemRight" valign="bottom"><b>MAYBE_RETURN</b>(x)   CRYPTOPP_UNUSED(x)</td></tr>
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Typedefs</h2></td></tr>
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typedef std::pair< const byte *, unsigned int > </td><td class="memItemRight" valign="bottom"><b>HashIdentifier</b></td></tr>
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typedef <a class="el" href="struct_enum_to_type.html">EnumToType</a>< <a class="el" href="pubkey_8h.html#ae4b59f7b9d3c7e03bb739f0584905ff1">CofactorMultiplicationOption</a>, <a class="el" href="pubkey_8h.html#ae4b59f7b9d3c7e03bb739f0584905ff1a69418ae10529f1fab66df8063ea9d286">NO_COFACTOR_MULTIPLICTION</a> > </td><td class="memItemRight" valign="bottom"><b>NoCofactorMultiplication</b></td></tr>
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typedef <a class="el" href="struct_enum_to_type.html">EnumToType</a>< <a class="el" href="pubkey_8h.html#ae4b59f7b9d3c7e03bb739f0584905ff1">CofactorMultiplicationOption</a>, <a class="el" href="pubkey_8h.html#ae4b59f7b9d3c7e03bb739f0584905ff1af008f1e77658d1f047d77a9524f68276">COMPATIBLE_COFACTOR_MULTIPLICTION</a> > </td><td class="memItemRight" valign="bottom"><b>CompatibleCofactorMultiplication</b></td></tr>
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typedef <a class="el" href="struct_enum_to_type.html">EnumToType</a>< <a class="el" href="pubkey_8h.html#ae4b59f7b9d3c7e03bb739f0584905ff1">CofactorMultiplicationOption</a>, <a class="el" href="pubkey_8h.html#ae4b59f7b9d3c7e03bb739f0584905ff1a50b557cd9b91bd00d059703cb4806f94">INCOMPATIBLE_COFACTOR_MULTIPLICTION</a> > </td><td class="memItemRight" valign="bottom"><b>IncompatibleCofactorMultiplication</b></td></tr>
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Enumerations</h2></td></tr>
<tr class="memitem:ae4b59f7b9d3c7e03bb739f0584905ff1"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="pubkey_8h.html#ae4b59f7b9d3c7e03bb739f0584905ff1">CofactorMultiplicationOption</a> { <a class="el" href="pubkey_8h.html#ae4b59f7b9d3c7e03bb739f0584905ff1a69418ae10529f1fab66df8063ea9d286">NO_COFACTOR_MULTIPLICTION</a>,
<a class="el" href="pubkey_8h.html#ae4b59f7b9d3c7e03bb739f0584905ff1af008f1e77658d1f047d77a9524f68276">COMPATIBLE_COFACTOR_MULTIPLICTION</a>,
<a class="el" href="pubkey_8h.html#ae4b59f7b9d3c7e03bb739f0584905ff1a50b557cd9b91bd00d059703cb4806f94">INCOMPATIBLE_COFACTOR_MULTIPLICTION</a>
}</td></tr>
<tr class="memdesc:ae4b59f7b9d3c7e03bb739f0584905ff1"><td class="mdescLeft"> </td><td class="mdescRight">Methods for avoiding "Small-Subgroup" attacks on Diffie-Hellman Key Agreement. <a href="pubkey_8h.html#ae4b59f7b9d3c7e03bb739f0584905ff1">More...</a><br /></td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a21504e2d12d7a615772129ef96a6f848"><td class="memItemLeft" align="right" valign="top"><a id="a21504e2d12d7a615772129ef96a6f848"></a>
void </td><td class="memItemRight" valign="bottom"><b>P1363_MGF1KDF2_Common</b> (<a class="el" href="class_hash_transformation.html">HashTransformation</a> &hash, byte *output, size_t outputLength, const byte *input, size_t inputLength, const byte *derivationParams, size_t derivationParamsLength, bool mask, unsigned int counterStart)</td></tr>
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</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>This file contains helper classes/functions for implementing public key algorithms. </p>
<p>The class hierachies in this header file tend to look like this:</p>
<pre>
x1
+--+
| |
y1 z1
| |
x2<y1> x2<z1>
| |
y2 z2
| |
x3<y2> x3<z2>
| |
y3 z3
</pre><ul>
<li>
x1, y1, z1 are abstract interface classes defined in <a class="el" href="cryptlib_8h.html" title="Abstract base classes that provide a uniform interface to this library. ">cryptlib.h</a> </li>
<li>
x2, y2, z2 are implementations of the interfaces using "abstract policies", which are pure virtual functions that should return interfaces to interchangeable algorithms. These classes have Base suffixes. </li>
<li>
x3, y3, z3 hold actual algorithms and implement those virtual functions. These classes have Impl suffixes. </li>
</ul>
<p>The TF_ prefix means an implementation using trapdoor functions on integers.</p>
<p>The DL_ prefix means an implementation using group operations in groups where discrete log is hard. </p>
<p class="definition">Definition in file <a class="el" href="pubkey_8h_source.html">pubkey.h</a>.</p>
</div><h2 class="groupheader">Enumeration Type Documentation</h2>
<a id="ae4b59f7b9d3c7e03bb739f0584905ff1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae4b59f7b9d3c7e03bb739f0584905ff1">◆ </a></span>CofactorMultiplicationOption</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">enum <a class="el" href="pubkey_8h.html#ae4b59f7b9d3c7e03bb739f0584905ff1">CofactorMultiplicationOption</a></td>
</tr>
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</div><div class="memdoc">
<p>Methods for avoiding "Small-Subgroup" attacks on Diffie-Hellman Key Agreement. </p>
<p>Additional methods exist and include public key validation and choice of prime p. </p><dl class="section see"><dt>See also</dt><dd><a href="http://tools.ietf.org/html/rfc2785">Methods for Avoiding the "Small-Subgroup" Attacks on the Diffie-Hellman Key Agreement Method for S/MIME</a> </dd></dl>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="ae4b59f7b9d3c7e03bb739f0584905ff1a69418ae10529f1fab66df8063ea9d286"></a>NO_COFACTOR_MULTIPLICTION </td><td class="fielddoc"><p>No cofactor multiplication applied. </p>
</td></tr>
<tr><td class="fieldname"><a id="ae4b59f7b9d3c7e03bb739f0584905ff1af008f1e77658d1f047d77a9524f68276"></a>COMPATIBLE_COFACTOR_MULTIPLICTION </td><td class="fielddoc"><p>Cofactor multiplication compatible with ordinary Diffie-Hellman. </p>
<p>Modifies the computation of ZZ by including j (the cofactor) in the computations and is compatible with ordinary Diffie-Hellman. </p>
</td></tr>
<tr><td class="fieldname"><a id="ae4b59f7b9d3c7e03bb739f0584905ff1a50b557cd9b91bd00d059703cb4806f94"></a>INCOMPATIBLE_COFACTOR_MULTIPLICTION </td><td class="fielddoc"><p>Cofactor multiplication incompatible with ordinary Diffie-Hellman. </p>
<p>Modifies the computation of ZZ by including j (the cofactor) in the computations but is not compatible with ordinary Diffie-Hellman. </p>
</td></tr>
</table>
<p class="definition">Definition at line <a class="el" href="pubkey_8h_source.html#l02060">2060</a> of file <a class="el" href="pubkey_8h_source.html">pubkey.h</a>.</p>
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