Crypto++ 8.2
Free C&
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Trapdoor Function (TF) Verifier base class. More...
#include <pubkey.h>
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 &recoveryAccumulator) const |
Recover a message from its signature. | |
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size_t | SignatureLength () const |
size_t | MaxRecoverableLength () const |
size_t | MaxRecoverableLengthFromSignatureLength (size_t signatureLength) const |
bool | IsProbabilistic () const |
bool | AllowNonrecoverablePart () const |
bool | RecoverablePartFirst () const |
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virtual PK_MessageAccumulator * | NewVerificationAccumulator () const =0 |
Create a new HashTransformation to accumulate the message to be verified. | |
virtual void | InputSignature (PK_MessageAccumulator &messageAccumulator, const byte *signature, size_t signatureLength) const =0 |
Input signature into a message accumulator. | |
virtual bool | Verify (PK_MessageAccumulator *messageAccumulator) const |
Check whether messageAccumulator contains a valid signature and message. | |
virtual bool | VerifyAndRestart (PK_MessageAccumulator &messageAccumulator) const =0 |
Check whether messageAccumulator contains a valid signature and message, and restart messageAccumulator. | |
virtual bool | VerifyMessage (const byte *message, size_t messageLen, const byte *signature, size_t signatureLen) 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. | |
virtual DecodingResult | RecoverAndRestart (byte *recoveredMessage, PK_MessageAccumulator &messageAccumulator) const =0 |
Recover a message from its signature. | |
virtual DecodingResult | RecoverMessage (byte *recoveredMessage, const byte *nonrecoverableMessage, size_t nonrecoverableMessageLength, const byte *signature, size_t signatureLength) const |
Recover a message from its signature. | |
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virtual size_t | SignatureLength () const =0 |
Provides the signature length if it only depends on the key. | |
virtual size_t | MaxSignatureLength (size_t recoverablePartLength=0) const |
Provides the maximum signature length produced given the length of the recoverable message part. | |
virtual size_t | MaxRecoverableLength () const =0 |
Provides the length of longest message that can be recovered. | |
virtual size_t | MaxRecoverableLengthFromSignatureLength (size_t signatureLength) const =0 |
Provides the length of longest message that can be recovered from a signature of given length. | |
virtual bool | IsProbabilistic () const =0 |
Determines whether a signature scheme requires a random number generator. | |
virtual bool | AllowNonrecoverablePart () const =0 |
Determines whether the non-recoverable message part can be signed. | |
virtual bool | SignatureUpfront () const |
Determines whether the signature must be input before the message. | |
virtual bool | RecoverablePartFirst () const =0 |
Determines whether the recoverable part must be input before the non-recoverable part. | |
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CryptoMaterial & | AccessMaterial () |
Retrieves a reference to a Public Key. | |
const CryptoMaterial & | GetMaterial () const |
Retrieves a reference to a Public Key. | |
virtual PublicKey & | AccessPublicKey ()=0 |
Retrieves a reference to a Public Key. | |
virtual const PublicKey & | GetPublicKey () const |
Retrieves a reference to a Public Key. | |
virtual CryptoMaterial & | AccessMaterial ()=0 |
Retrieves a reference to CryptoMaterial. | |
virtual const CryptoMaterial & | GetMaterial () const =0 |
Retrieves a reference to CryptoMaterial. | |
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Algorithm (bool checkSelfTestStatus=true) | |
Interface for all crypto algorithms. | |
virtual std::string | AlgorithmName () const |
Provides the name of this algorithm. | |
virtual std::string | AlgorithmProvider () const |
Retrieve the provider of this algorithm. | |
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virtual Clonable * | Clone () const |
Copies this object. | |
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inlinevirtual |
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virtual |
Input signature into a message accumulator.
messageAccumulator | a pointer to a PK_MessageAccumulator derived class |
signature | the signature on the message |
signatureLength | the size of the signature |
Implements PK_Verifier.
Definition at line 94 of file pubkey.cpp.
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virtual |
Check whether messageAccumulator contains a valid signature and message, and restart messageAccumulator.
messageAccumulator | a reference to a PK_MessageAccumulator derived class |
VerifyAndRestart() restarts the messageAccumulator
Implements PK_Verifier.
Definition at line 110 of file pubkey.cpp.
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virtual |
Recover a message from its signature.
recoveredMessage | a pointer to the recoverable message part to be verified |
messageAccumulator | a pointer to a PK_MessageAccumulator derived class |
RecoverAndRestart() restarts the messageAccumulator
COUNTOF(recoveredMessage) == MaxRecoverableLengthFromSignatureLength(signatureLength)
Implements PK_Verifier.
Definition at line 125 of file pubkey.cpp.