#include <pubkey.h>
Inheritance diagram for DL_VerifierImpl< SCHEME_OPTIONS >:
Definition at line 1335 of file pubkey.h.
Public Types | |
| typedef SCHEME_OPTIONS::PublicKey::Element | Element |
| typedef SCHEME_OPTIONS | SchemeOptions |
Public Member Functions | |
| PK_MessageAccumulator * | NewVerificationAccumulator () const |
| create a new HashTransformation to accumulate the message to be verified | |
| PrivateKey & | AccessPrivateKey () |
| PublicKey & | AccessPublicKey () |
| const SCHEME_OPTIONS::PublicKey & | GetKey () const |
| SCHEME_OPTIONS::PublicKey & | AccessKey () |
| std::string | AlgorithmName () const |
| returns name of this algorithm, not universally implemented yet | |
| 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 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 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 Clonable * | Clone () const |
| this is not implemented by most classes yet | |
Static Public Member Functions | |
| static std::string __cdecl | StaticAlgorithmName () |
Protected Types | |
| typedef DL_PublicKey< SCHEME_OPTIONS::Element > | KeyInterface |
Protected Member Functions | |
|
const DL_ElgamalLikeSignatureAlgorithm< Element > & | GetSignatureAlgorithm () const |
|
const DL_KeyAgreementAlgorithm< Element > & | GetKeyAgreementAlgorithm () const |
|
const DL_KeyDerivationAlgorithm< Element > & | GetKeyDerivationAlgorithm () const |
| const DL_SymmetricEncryptionAlgorithm & | GetSymmetricEncryptionAlgorithm () const |
| HashIdentifier | GetHashIdentifier () const |
| const PK_SignatureMessageEncodingMethod & | GetMessageEncodingInterface () const |
|
DL_VerifierBase< SCHEME_OPTIONS::Element >::KeyInterface & | AccessKeyInterface () |
|
const DL_VerifierBase< SCHEME_OPTIONS::Element >::KeyInterface & | GetKeyInterface () const |
| size_t | GetDigestSize () const |
| size_t | MessageRepresentativeLength () const |
| size_t | MessageRepresentativeBitLength () const |
|
const DL_GroupParameters< Element > & | GetAbstractGroupParameters () const |
| DL_GroupParameters< Element > & | AccessAbstractGroupParameters () |
| DecodingResult DL_VerifierBase< SCHEME_OPTIONS::Element >::RecoverAndRestart | ( | byte * | recoveredMessage, | |
| PK_MessageAccumulator & | messageAccumulator | |||
| ) | const [inline, virtual, inherited] |
recover a message from its signature
Implements PK_Verifier.
Definition at line 1103 of file pubkey.h.
References PK_MessageAccumulatorBase::AccessHash(), DL_Base< KEY_INTERFACE >::GetAbstractGroupParameters(), DL_GroupParameters< T >::GetEncodedElementSize(), PK_MessageAccumulatorBase::m_empty, PK_MessageAccumulatorBase::m_presignature, PK_MessageAccumulatorBase::m_recoverableMessage, PK_MessageAccumulatorBase::m_s, PK_MessageAccumulatorBase::m_semisignature, DL_SignatureSchemeBase< INTERFACE, KEY_INTERFACE >::MessageRepresentativeBitLength(), SecBlock< T, A >::New(), and SecBlock< T, A >::size().
| bool DL_SignatureSchemeBase< PK_Verifier , DL_PublicKey< SCHEME_OPTIONS::Element > >::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