#include <pubkey.h>
Inheritance diagram for DL_VerifierBase< T >:
Definition at line 1067 of file 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 &messageAccumulator) const |
| recover a message from its signature | |
| size_t | SignatureLength () const |
| signature length if it only depends on the key, otherwise 0 | |
| size_t | MaxRecoverableLength () const |
| length of longest message that can be recovered, or 0 if this signature scheme does not support message recovery | |
| size_t | MaxRecoverableLengthFromSignatureLength (size_t signatureLength) const |
| 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 | |
| bool | IsProbabilistic () const |
| requires a random number generator to sign | |
| bool | AllowNonrecoverablePart () const |
| whether or not a non-recoverable message part can be signed | |
| bool | RecoverablePartFirst () const |
| whether you must input the recoverable part before the non-recoverable part during signing | |
| 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 | |
| virtual DecodingResult | RecoverMessage (byte *recoveredMessage, const byte *nonrecoverableMessage, size_t nonrecoverableMessageLength, const byte *signature, size_t signatureLength) const |
| recover a message from its signature | |
| 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 |
| returns name of this algorithm, not universally implemented yet | |
| virtual Clonable * | Clone () const |
| this is not implemented by most classes yet | |
Protected Types | |
| typedef DL_PublicKey< T > | KeyInterface |
|
typedef DL_PublicKey< T >::Element | Element |
Protected Member Functions | |
| size_t | MessageRepresentativeLength () const |
| size_t | MessageRepresentativeBitLength () const |
|
virtual const DL_ElgamalLikeSignatureAlgorithm< typename DL_PublicKey< T >::Element > & | GetSignatureAlgorithm () const=0 |
| virtual const PK_SignatureMessageEncodingMethod & | GetMessageEncodingInterface () const=0 |
| virtual HashIdentifier | GetHashIdentifier () const=0 |
| virtual size_t | GetDigestSize () const=0 |
|
const DL_GroupParameters< Element > & | GetAbstractGroupParameters () const |
| DL_GroupParameters< Element > & | AccessAbstractGroupParameters () |
| virtual KeyInterface & | AccessKeyInterface ()=0 |
| virtual const KeyInterface & | GetKeyInterface () const=0 |
| DecodingResult DL_VerifierBase< T >::RecoverAndRestart | ( | byte * | recoveredMessage, | |
| PK_MessageAccumulator & | messageAccumulator | |||
| ) | const [inline, virtual] |
recover a message from its signature
Implements PK_Verifier.
| bool DL_SignatureSchemeBase< PK_Verifier , DL_PublicKey< T > >::IsProbabilistic | ( | ) | const [inline, virtual, inherited] |
| DecodingResult PK_Verifier::Recover | ( | byte * | recoveredMessage, | |
| PK_MessageAccumulator * | messageAccumulator | |||
| ) | const [virtual, inherited] |
recover a message from its signature
Definition at line 659 of file cryptlib.cpp.
References PK_Verifier::RecoverAndRestart().
| DecodingResult PK_Verifier::RecoverMessage | ( | byte * | recoveredMessage, | |
| const byte * | nonrecoverableMessage, | |||
| size_t | nonrecoverableMessageLength, | |||
| const byte * | signature, | |||
| size_t | signatureLength | |||
| ) | const [virtual, inherited] |
recover a message from its signature
Definition at line 665 of file cryptlib.cpp.
References PK_Verifier::InputSignature(), PK_Verifier::NewVerificationAccumulator(), and PK_Verifier::RecoverAndRestart().
1.5.1-p1