Crypto++
5.6.3
Free C++ class library of cryptographic schemes
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Public Member Functions | |
void | InputSignature (PK_MessageAccumulator &messageAccumulator, const byte *signature, size_t signatureLength) const |
input signature into a message accumulator | |
bool | VerifyAndRestart (PK_MessageAccumulator &messageAccumulator) const |
check whether messageAccumulator contains a valid signature and message, and restart messageAccumulator | |
DecodingResult | RecoverAndRestart (byte *recoveredMessage, PK_MessageAccumulator &messageAccumulator) const |
recover a message from its signature More... | |
size_t | SignatureLength () const |
size_t | MaxRecoverableLength () const |
size_t | MaxRecoverableLengthFromSignatureLength (size_t signatureLength) const |
bool | IsProbabilistic () const |
bool | AllowNonrecoverablePart () const |
bool | RecoverablePartFirst () const |
virtual PK_MessageAccumulator * | NewVerificationAccumulator () const =0 |
create a new HashTransformation to accumulate the message to be verified | |
virtual bool | Verify (PK_MessageAccumulator *messageAccumulator) const |
check whether messageAccumulator contains a valid signature and message, and delete messageAccumulator (even in case of exception thrown) | |
virtual bool | VerifyMessage (const byte *message, size_t messageLen, const byte *signature, size_t signatureLength) const |
check whether input signature is a valid signature for input message | |
virtual DecodingResult | Recover (byte *recoveredMessage, PK_MessageAccumulator *messageAccumulator) const |
recover a message from its signature More... | |
virtual DecodingResult | RecoverMessage (byte *recoveredMessage, const byte *nonrecoverableMessage, size_t nonrecoverableMessageLength, const byte *signature, size_t signatureLength) const |
recover a message from its signature More... | |
virtual size_t | MaxSignatureLength (size_t recoverablePartLength=0) const |
maximum signature length produced for a given length of recoverable message part | |
virtual bool | SignatureUpfront () const |
if this function returns true, during verification you must input the signature before the message, otherwise you can input it at anytime */ | |
CryptoMaterial & | AccessMaterial () |
returns a reference to the crypto material used by this object | |
const CryptoMaterial & | GetMaterial () const |
returns a const reference to the crypto material used by this object | |
virtual PublicKey & | AccessPublicKey ()=0 |
virtual const PublicKey & | GetPublicKey () const |
void | BERDecode (BufferedTransformation &bt) |
for backwards compatibility, calls AccessMaterial().Load(bt) | |
void | DEREncode (BufferedTransformation &bt) const |
for backwards compatibility, calls GetMaterial().Save(bt) | |
virtual std::string | AlgorithmName () const |
Provides the name of this algorithm. More... | |
virtual Clonable * | Clone () const |
Copies this object. More... | |
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inlinevirtual |
recover a message from its signature
Implements PK_Verifier.
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virtualinherited |
recover a message from its signature
Definition at line 905 of file cryptlib.cpp.
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virtualinherited |
recover a message from its signature
Definition at line 911 of file cryptlib.cpp.
References HashTransformation::Update().
Referenced by FixedRNG::GenerateBlock().
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inlinevirtualinherited |
Provides the name of this algorithm.
The standard algorithm name can be a name like AES or AES/GCM. Some algorithms do not have standard names yet. For example, there is no standard algorithm name for Shoup's ECIES.
Reimplemented in AuthenticatedSymmetricCipher, SignatureVerificationFilter, SignerFilter, AuthenticatedDecryptionFilter, HashVerificationFilter, HashFilter, StreamTransformationFilter, ClassNullRNG, BitBucket, RDSEED, DH_Domain< GROUP_PARAMETERS, COFACTOR_OPTION >, HMAC< T >, RDRAND, CRC32, GCM_Base, Adler32, EAX_Base, CCM_Base, SHA3, and VMAC_Base.
Definition at line 488 of file cryptlib.h.
Referenced by VariableRounds< 6, 2 >::StaticGetDefaultRounds().
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inlinevirtualinherited |
Copies this object.
NotImplemented |
Definition at line 464 of file cryptlib.h.