#include <pubkey.h>

Inheritance diagram for DL_DecryptorBase< T >:

Public Types
typedef T	Element

Public Member Functions
DecodingResult	Decrypt (RandomNumberGenerator &rng, const byte ciphertext, size_t ciphertextLength, byte plaintext, const NameValuePairs &parameters=g_nullNameValuePairs) const
	decrypt a byte string, and return the length of plaintext More...

size_t	MaxPlaintextLength (size_t ciphertextLength) const

size_t	CiphertextLength (size_t plaintextLength) const

bool	ParameterSupported (const char *name) const

virtual BufferedTransformation *	CreateDecryptionFilter (RandomNumberGenerator &rng, BufferedTransformation *attachment=NULL, const NameValuePairs &parameters=g_nullNameValuePairs) const
	create a new decryption filter More...

DecodingResult	FixedLengthDecrypt (RandomNumberGenerator &rng, const byte ciphertext, byte plaintext, const NameValuePairs &parameters=g_nullNameValuePairs) const
	decrypt a fixed size ciphertext

virtual size_t	FixedCiphertextLength () const
	return fixed ciphertext length, if one exists, otherwise return 0 More...

virtual size_t	FixedMaxPlaintextLength () const
	return maximum plaintext length given the fixed ciphertext length, if one exists, otherwise return 0

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 PrivateKey &	AccessPrivateKey ()=0

virtual const PrivateKey &	GetPrivateKey () 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_PrivateKey< T >	KeyInterface

Protected Member Functions
virtual const DL_KeyAgreementAlgorithm < Element > &	GetKeyAgreementAlgorithm () const =0

virtual const DL_KeyDerivationAlgorithm < Element > &	GetKeyDerivationAlgorithm () const =0

virtual const DL_SymmetricEncryptionAlgorithm &	GetSymmetricEncryptionAlgorithm () const =0

const DL_GroupParameters < Element > &	GetAbstractGroupParameters () const

DL_GroupParameters< Element > &	AccessAbstractGroupParameters ()

virtual KeyInterface &	AccessKeyInterface ()=0

virtual const KeyInterface &	GetKeyInterface () const =0

Detailed Description

template<class T>
class DL_DecryptorBase< T >

_

Definition at line 1179 of file pubkey.h.

Member Function Documentation

template<class T>

DecodingResult DL_DecryptorBase< T >::Decrypt	(	RandomNumberGenerator &	rng,
		const byte *	ciphertext,
		size_t	ciphertextLength,
		byte *	plaintext,
		const NameValuePairs &	parameters = `g_nullNameValuePairs`
	)		const

inlinevirtual

decrypt a byte string, and return the length of plaintext

Precondition: size of plaintext == MaxPlaintextLength(ciphertextLength) bytes.

Returns: the actual length of the plaintext, indication that decryption failed.

Implements PK_Decryptor.

Definition at line 1184 of file pubkey.h.

virtual BufferedTransformation* PK_Decryptor::CreateDecryptionFilter	(	RandomNumberGenerator &	rng,
		BufferedTransformation *	attachment = `NULL`,
		const NameValuePairs &	parameters = `g_nullNameValuePairs`
	)		const