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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++: TF_VerifierBase Class 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>TF_VerifierBase Class Reference</h1><!-- doxytag: class="TF_VerifierBase" --><!-- doxytag: inherits="TF_SignatureSchemeBase< PK_Verifier, TF_Base< TrapdoorFunction, PK_SignatureMessageEncodingMethod > >" --><code>#include <<a class="el" href="pubkey_8h-source.html">pubkey.h</a>></code><p><p>Inheritance diagram for TF_VerifierBase:<p><center><img src="class_t_f___verifier_base.png" usemap="#TF_VerifierBase_map" border="0" alt=""></center><map name="TF_VerifierBase_map"><area href="class_t_f___signature_scheme_base.html" alt="TF_SignatureSchemeBase< PK_Verifier, TF_Base< TrapdoorFunction, PK_SignatureMessageEncodingMethod > >" shape="rect" coords="677,280,1344,304"><area href="class_p_k___verifier.html" alt="PK_Verifier" shape="rect" coords="338,224,1005,248"><area href="class_t_f___base.html" alt="TF_Base< TrapdoorFunction, PK_SignatureMessageEncodingMethod >" shape="rect" coords="1015,224,1682,248"><area href="class_p_k___signature_scheme.html" alt="PK_SignatureScheme" shape="rect" coords="0,168,667,192"><area href="class_public_key_algorithm.html" alt="PublicKeyAlgorithm" shape="rect" coords="677,168,1344,192"><area href="class_asymmetric_algorithm.html" alt="AsymmetricAlgorithm" shape="rect" coords="677,112,1344,136"><area href="class_algorithm.html" alt="Algorithm" shape="rect" coords="677,56,1344,80"><area href="class_clonable.html" alt="Clonable" shape="rect" coords="677,0,1344,24"><area href="class_algorithm_impl.html" alt="AlgorithmImpl< TF_VerifierBase, SCHEME_OPTIONS::AlgorithmInfo >" shape="rect" coords="677,392,1344,416"><area href="class_t_f___object_impl_base.html" alt="TF_ObjectImplBase< TF_VerifierBase, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey >" shape="rect" coords="677,448,1344,472"><area href="class_t_f___object_impl.html" alt="TF_ObjectImpl< TF_VerifierBase, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey >" shape="rect" coords="677,504,1344,528"><area href="class_t_f___verifier_impl.html" alt="TF_VerifierImpl< SCHEME_OPTIONS >" shape="rect" coords="677,560,1344,584"></map><a href="class_t_f___verifier_base-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>_ <p><p>Definition at line <a class="el" href="pubkey_8h-source.html#l00343">343</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 Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="45485ca98bca3ac643aa3067f1824abd"></a><!-- doxytag: member="TF_VerifierBase::InputSignature" ref="45485ca98bca3ac643aa3067f1824abd" args="(PK_MessageAccumulator &messageAccumulator, const byte *signature, size_t signatureLength) const " -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___verifier_base.html#45485ca98bca3ac643aa3067f1824abd">InputSignature</a> (<a class="el" href="class_p_k___message_accumulator.html">PK_MessageAccumulator</a> &messageAccumulator, const byte *signature, size_t signatureLength) const </td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">input signature into a message accumulator <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="de187ebe9057cd724638d0d4ee45fae2"></a><!-- doxytag: member="TF_VerifierBase::VerifyAndRestart" ref="de187ebe9057cd724638d0d4ee45fae2" args="(PK_MessageAccumulator &messageAccumulator) const " -->bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___verifier_base.html#de187ebe9057cd724638d0d4ee45fae2">VerifyAndRestart</a> (<a class="el" href="class_p_k___message_accumulator.html">PK_MessageAccumulator</a> &messageAccumulator) const </td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">check whether messageAccumulator contains a valid signature and message, and restart messageAccumulator <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="struct_decoding_result.html">DecodingResult</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___verifier_base.html#fff8535e4229e7e27e0824ce68e7e723">RecoverAndRestart</a> (byte *recoveredMessage, <a class="el" href="class_p_k___message_accumulator.html">PK_MessageAccumulator</a> &recoveryAccumulator) const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">recover a message from its signature <a href="#fff8535e4229e7e27e0824ce68e7e723"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="206919065f471c351afa3c1e04acb6a8"></a><!-- doxytag: member="TF_VerifierBase::SignatureLength" ref="206919065f471c351afa3c1e04acb6a8" args="() const" -->size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___signature_scheme_base.html#206919065f471c351afa3c1e04acb6a8">SignatureLength</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">signature length if it only depends on the key, otherwise 0 <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="dc3ec84462aecf2cab21999aff5f0904"></a><!-- doxytag: member="TF_VerifierBase::MaxRecoverableLength" ref="dc3ec84462aecf2cab21999aff5f0904" args="() const" -->size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___signature_scheme_base.html#dc3ec84462aecf2cab21999aff5f0904">MaxRecoverableLength</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">length of longest message that can be recovered, or 0 if this signature scheme does not support message recovery <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="f7a486e575d871dbcbd7dc6af33f1305"></a><!-- doxytag: member="TF_VerifierBase::MaxRecoverableLengthFromSignatureLength" ref="f7a486e575d871dbcbd7dc6af33f1305" args="(size_t signatureLength) const " -->size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___signature_scheme_base.html#f7a486e575d871dbcbd7dc6af33f1305">MaxRecoverableLengthFromSignatureLength</a> (size_t signatureLength) const </td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">length of longest message that can be recovered from a signature of given length, or 0 if this signature scheme does not support message recovery <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___signature_scheme_base.html#db5ef45069481de1ceca75a847aa37f4">IsProbabilistic</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">requires a random number generator to sign <a href="#db5ef45069481de1ceca75a847aa37f4"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="83670675d672a58290d7b5ca2e00b0d4"></a><!-- doxytag: member="TF_VerifierBase::AllowNonrecoverablePart" ref="83670675d672a58290d7b5ca2e00b0d4" args="() const" -->bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___signature_scheme_base.html#83670675d672a58290d7b5ca2e00b0d4">AllowNonrecoverablePart</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">whether or not a non-recoverable message part can be signed <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="7c241a57d4fc44139867e3c7b576884e"></a><!-- doxytag: member="TF_VerifierBase::RecoverablePartFirst" ref="7c241a57d4fc44139867e3c7b576884e" args="() const" -->bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_t_f___signature_scheme_base.html#7c241a57d4fc44139867e3c7b576884e">RecoverablePartFirst</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">whether you must input the recoverable part before the non-recoverable part during signing <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="24203e25fdd33fa7cf3c4a2393444a78"></a><!-- doxytag: member="TF_VerifierBase::NewVerificationAccumulator" ref="24203e25fdd33fa7cf3c4a2393444a78" args="() const=0" -->virtual <a class="el" href="class_p_k___message_accumulator.html">PK_MessageAccumulator</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___verifier.html#24203e25fdd33fa7cf3c4a2393444a78">NewVerificationAccumulator</a> () const=0</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">create a new <a class="el" href="class_hash_transformation.html" title="interface for hash functions and data processing part of MACs">HashTransformation</a> to accumulate the message to be verified <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="002461c71eaacb022a0d169975a6f752"></a><!-- doxytag: member="TF_VerifierBase::Verify" ref="002461c71eaacb022a0d169975a6f752" args="(PK_MessageAccumulator *messageAccumulator) const " -->virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___verifier.html#002461c71eaacb022a0d169975a6f752">Verify</a> (<a class="el" href="class_p_k___message_accumulator.html">PK_MessageAccumulator</a> *messageAccumulator) const </td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">check whether messageAccumulator contains a valid signature and message, and delete messageAccumulator (even in case of exception thrown) <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="4640a967fd291f8be86c1b721dc73b2d"></a><!-- doxytag: member="TF_VerifierBase::VerifyMessage" ref="4640a967fd291f8be86c1b721dc73b2d" args="(const byte *message, size_t messageLen, const byte *signature, size_t signatureLength) const " -->virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___verifier.html#4640a967fd291f8be86c1b721dc73b2d">VerifyMessage</a> (const byte *message, size_t messageLen, const byte *signature, size_t signatureLength) const </td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">check whether input signature is a valid signature for input message <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="struct_decoding_result.html">DecodingResult</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___verifier.html#25a928c76d7bc73e1a04d85266b46382">Recover</a> (byte *recoveredMessage, <a class="el" href="class_p_k___message_accumulator.html">PK_MessageAccumulator</a> *messageAccumulator) const </td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">recover a message from its signature <a href="#25a928c76d7bc73e1a04d85266b46382"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="struct_decoding_result.html">DecodingResult</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___verifier.html#05d969651d86a63d5002057113e0cab7">RecoverMessage</a> (byte *recoveredMessage, const byte *nonrecoverableMessage, size_t nonrecoverableMessageLength, const byte *signature, size_t signatureLength) const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">recover a message from its signature <a href="#05d969651d86a63d5002057113e0cab7"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="665909c10f27db81343a01c814488652"></a><!-- doxytag: member="TF_VerifierBase::MaxSignatureLength" ref="665909c10f27db81343a01c814488652" args="(size_t recoverablePartLength=0) const" -->virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___signature_scheme.html#665909c10f27db81343a01c814488652">MaxSignatureLength</a> (size_t recoverablePartLength=0) const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">maximum signature length produced for a given length of recoverable message part <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="8f62890f0485b9ca58528047871f8894"></a><!-- doxytag: member="TF_VerifierBase::SignatureUpfront" ref="8f62890f0485b9ca58528047871f8894" args="() const" -->virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_p_k___signature_scheme.html#8f62890f0485b9ca58528047871f8894">SignatureUpfront</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">if this function returns true, during verification you must input the signature before the message, otherwise you can input it at anytime */ <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="74b77db3086e07caf5506fda9ec204e7"></a><!-- doxytag: member="TF_VerifierBase::AccessMaterial" ref="74b77db3086e07caf5506fda9ec204e7" args="()" -->⌨️ 快捷键说明
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