ElGamalBase Class Reference

ElGamal key agreement and encryption schemes base class. More...

#include <elgamal.h>

Inheritance diagram for ElGamalBase:

Public Member Functions
void	Derive (const DL_GroupParameters< Integer > &groupParams, byte *derivedKey, size_t derivedLength, const Integer &agreedElement, const Integer &ephemeralPublicKey, const NameValuePairs &derivationParams) const
size_t	GetSymmetricKeyLength (size_t plainTextLength) const
size_t	GetSymmetricCiphertextLength (size_t plainTextLength) const
size_t	GetMaxSymmetricPlaintextLength (size_t cipherTextLength) const
void	SymmetricEncrypt (RandomNumberGenerator &rng, const byte *key, const byte *plainText, size_t plainTextLength, byte *cipherText, const NameValuePairs &parameters) const
DecodingResult	SymmetricDecrypt (const byte *key, const byte *cipherText, size_t cipherTextLength, byte *plainText, const NameValuePairs &parameters) const
virtual const DL_GroupParameters_GFP &	GetGroupParameters () const =0
Public Member Functions inherited from DL_KeyAgreementAlgorithm_DH< Integer, NoCofactorMultiplication >
Element	AgreeWithEphemeralPrivateKey (const DL_GroupParameters< Element > &params, const DL_FixedBasePrecomputation< Element > &publicPrecomputation, const Integer &privateExponent) const
Element	AgreeWithStaticPrivateKey (const DL_GroupParameters< Element > &params, const Element &publicElement, bool validateOtherPublicKey, const Integer &privateExponent) const
Public Member Functions inherited from DL_KeyAgreementAlgorithm< T >
virtual Element	AgreeWithEphemeralPrivateKey (const DL_GroupParameters< Element > &params, const DL_FixedBasePrecomputation< Element > &publicPrecomputation, const Integer &privateExponent) const =0
virtual Element	AgreeWithStaticPrivateKey (const DL_GroupParameters< Element > &params, const Element &publicElement, bool validateOtherPublicKey, const Integer &privateExponent) const =0
Public Member Functions inherited from DL_KeyDerivationAlgorithm< Integer >
virtual bool	ParameterSupported (const char *name) const
Public Member Functions inherited from DL_SymmetricEncryptionAlgorithm
virtual bool	ParameterSupported (const char *name) const

Additional Inherited Members
Public Types inherited from DL_KeyAgreementAlgorithm_DH< Integer, NoCofactorMultiplication >
typedef Integer	Element
Public Types inherited from DL_KeyAgreementAlgorithm< T >
typedef T	Element
Static Public Member Functions inherited from DL_KeyAgreementAlgorithm_DH< Integer, NoCofactorMultiplication >
static const char *	StaticAlgorithmName ()

Detailed Description

ElGamal key agreement and encryption schemes base class.

Since

Crypto++ 1.0

Definition at line 23 of file elgamal.h.

Constructor & Destructor Documentation

~ElGamalBase()

virtual ElGamalBase::~ElGamalBase ( )

inlinevirtual

Definition at line 29 of file elgamal.h.

Member Function Documentation

Derive()

void ElGamalBase::Derive ( const DL_GroupParameters< Integer > & groupParams, byte * derivedKey, size_t derivedLength, const Integer & agreedElement, const Integer & ephemeralPublicKey, const NameValuePairs & derivationParams ) const

inlinevirtual

Implements DL_KeyDerivationAlgorithm< Integer >.

Definition at line 31 of file elgamal.h.

GetSymmetricKeyLength()

size_t ElGamalBase::GetSymmetricKeyLength ( size_t plainTextLength ) const

inlinevirtual

Implements DL_SymmetricEncryptionAlgorithm.

Definition at line 38 of file elgamal.h.

GetSymmetricCiphertextLength()

size_t ElGamalBase::GetSymmetricCiphertextLength ( size_t plainTextLength ) const

inlinevirtual

Implements DL_SymmetricEncryptionAlgorithm.

Definition at line 44 of file elgamal.h.

GetMaxSymmetricPlaintextLength()

size_t ElGamalBase::GetMaxSymmetricPlaintextLength ( size_t cipherTextLength ) const

inlinevirtual

Implements DL_SymmetricEncryptionAlgorithm.

Definition at line 53 of file elgamal.h.

SymmetricEncrypt()

void ElGamalBase::SymmetricEncrypt ( RandomNumberGenerator & rng, const byte * key, const byte * plainText, size_t plainTextLength, byte * cipherText, const NameValuePairs & parameters ) const

inlinevirtual

Implements DL_SymmetricEncryptionAlgorithm.

Definition at line 64 of file elgamal.h.

SymmetricDecrypt()

DecodingResult ElGamalBase::SymmetricDecrypt ( const byte * key, const byte * cipherText, size_t cipherTextLength, byte * plainText, const NameValuePairs & parameters ) const

inlinevirtual

Implements DL_SymmetricEncryptionAlgorithm.

Definition at line 78 of file elgamal.h.

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The documentation for this class was generated from the following file:

• elgamal.h