#include <pubkey.h>

Inheritance diagram for TF_DecryptorBase:

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
bool	ParameterSupported (const char *name) const
	this object supports the use of the parameter with the given name
size_t	FixedMaxPlaintextLength () const
	return maximum plaintext length given the fixed ciphertext length, if one exists, otherwise return 0
size_t	FixedCiphertextLength () const
	return fixed ciphertext length, if one exists, otherwise return 0
size_t	MaxPlaintextLength (size_t ciphertextLength) const
	maximum length of plaintext for a given ciphertext length
size_t	CiphertextLength (size_t plaintextLength) const
	calculate length of ciphertext given length of plaintext
virtual BufferedTransformation *	CreateDecryptionFilter (RandomNumberGenerator &rng, BufferedTransformation *attachment=NULL, const NameValuePairs &parameters=g_nullNameValuePairs) const
	create a new decryption filter
DecodingResult	FixedLengthDecrypt (RandomNumberGenerator &rng, const byte ciphertext, byte plaintext, const NameValuePairs &parameters=g_nullNameValuePairs) const
	decrypt a fixed size ciphertext
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 TrapdoorFunctionInverse	TrapdoorFunctionInterface
typedef PK_EncryptionMessageEncodingMethod	MessageEncodingInterface

Protected Member Functions
size_t	PaddedBlockByteLength () const
size_t	PaddedBlockBitLength () const
virtual const TrapdoorFunctionBounds &	GetTrapdoorFunctionBounds () const =0
virtual const TrapdoorFunctionInterface &	GetTrapdoorFunctionInterface () const =0
virtual const MessageEncodingInterface &	GetMessageEncodingInterface () const =0

Detailed Description

_

Definition at line 166 of file pubkey.h.

Member Function Documentation

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

virtual

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.

bool TF_CryptoSystemBase< PK_Decryptor , TF_Base< TrapdoorFunctionInverse, PK_EncryptionMessageEncodingMethod > >::ParameterSupported ( const char * name ) const

inlinevirtualinherited

Implements PK_CryptoSystem.

Definition at line 156 of file pubkey.h.

size_t TF_CryptoSystemBase< PK_Decryptor , TF_Base< TrapdoorFunctionInverse, PK_EncryptionMessageEncodingMethod > >::FixedCiphertextLength ( ) const

inlinevirtualinherited

Implements PK_FixedLengthCryptoSystemImpl< PK_Decryptor >.

Definition at line 158 of file pubkey.h.

size_t PK_FixedLengthCryptoSystemImpl< PK_Decryptor >::MaxPlaintextLength ( size_t ciphertextLength ) const

inlinevirtualinherited

Implements PK_CryptoSystem.

Definition at line 142 of file pubkey.h.

size_t PK_FixedLengthCryptoSystemImpl< PK_Decryptor >::CiphertextLength ( size_t plaintextLength ) const

inlinevirtualinherited

Implements PK_CryptoSystem.

Definition at line 144 of file pubkey.h.

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

virtualinherited

create a new decryption filter

Note: caller is responsible for deleting the returned pointer

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

pubkey.h

Public Member Functions

Protected Types

Protected Member Functions

Detailed Description

Member Function Documentation