#include <pubkey.h>
Inheritance diagram for DL_VerifierImpl< SCHEME_OPTIONS >:
Definition at line 1375 of file pubkey.h.
Public Types | |
typedef SCHEME_OPTIONS::PublicKey::Element | Element |
typedef SCHEME_OPTIONS | SchemeOptions |
typedef SCHEME_OPTIONS::PublicKey | KeyClass |
Public Member Functions | |
PK_MessageAccumulator * | NewVerificationAccumulator () const |
create a new HashTransformation to accumulate the message to be verified | |
void | CopyKeyInto (typename SCHEME_OPTIONS::PublicKey &key) const |
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, unsigned int 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 | |
unsigned int | SignatureLength () const |
signature length if it only depends on the key, otherwise 0 | |
unsigned int | MaxRecoverableLength () const |
length of longest message that can be recovered, or 0 if this signature scheme does not support message recovery | |
unsigned int | MaxRecoverableLengthFromSignatureLength (unsigned int 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, unsigned int messageLen, const byte *signature, unsigned int 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, unsigned int nonrecoverableMessageLength, const byte *signature, unsigned int signatureLength) const |
recover a message from its signature | |
virtual unsigned int | MaxSignatureLength (unsigned int 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 | 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 |
unsigned int | GetDigestSize () const |
unsigned int | MessageRepresentativeLength () const |
unsigned int | MessageRepresentativeBitLength () const |
const DL_GroupParameters< Element > & | GetAbstractGroupParameters () const |
DL_GroupParameters< Element > & | AccessAbstractGroupParameters () |
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recover a message from its signature
Implements PK_Verifier. Definition at line 1123 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(). |
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Implements PK_SignatureScheme. |
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recover a message from its signature
Definition at line 651 of file cryptlib.cpp. References PK_Verifier::RecoverAndRestart(). |
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recover a message from its signature
Definition at line 657 of file cryptlib.cpp. References PK_Verifier::InputSignature(), PK_Verifier::NewVerificationAccumulator(), and PK_Verifier::RecoverAndRestart(). |