TF_EncryptorBase Class Reference

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#include <pubkey.h>

Inheritance diagram for TF_EncryptorBase:

Public Member Functions
void	Encrypt (RandomNumberGenerator &rng, const byte *plaintext, size_t plaintextLength, byte *ciphertext, const NameValuePairs &parameters=g_nullNameValuePairs) const
	encrypt a byte string
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 *	CreateEncryptionFilter (RandomNumberGenerator &rng, BufferedTransformation *attachment=NULL, const NameValuePairs &parameters=g_nullNameValuePairs) const
	create a new encryption filter
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 PublicKey &	AccessPublicKey ()=0
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 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 RandomizedTrapdoorFunction	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

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Definition at line 173 of file pubkey.h.

Member Function Documentation

void TF_EncryptorBase::Encrypt ( RandomNumberGenerator &  rng, const byte *  plaintext, size_t  plaintextLength, byte *  ciphertext, const NameValuePairs &  parameters = g_nullNameValuePairs  ) const

virtual

encrypt a byte string

Precondition

CiphertextLength(plaintextLength) != 0 (i.e., plaintext isn't too long)

size of ciphertext == CiphertextLength(plaintextLength)

Implements PK_Encryptor.

bool TF_CryptoSystemBase< PK_Encryptor , TF_Base< RandomizedTrapdoorFunction, PK_EncryptionMessageEncodingMethod > >::ParameterSupported ( const char *  name ) const

inlinevirtualinherited

Implements PK_CryptoSystem.

Definition at line 156 of file pubkey.h.

size_t TF_CryptoSystemBase< PK_Encryptor , TF_Base< RandomizedTrapdoorFunction, PK_EncryptionMessageEncodingMethod > >::FixedCiphertextLength ( ) const

inlinevirtualinherited

Implements PK_FixedLengthCryptoSystemImpl< PK_Encryptor >.

Definition at line 158 of file pubkey.h.

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

inlinevirtualinherited

Implements PK_CryptoSystem.

Definition at line 142 of file pubkey.h.

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

inlinevirtualinherited

Implements PK_CryptoSystem.

Definition at line 144 of file pubkey.h.

virtual BufferedTransformation* PK_Encryptor::CreateEncryptionFilter ( RandomNumberGenerator &  rng, BufferedTransformation *  attachment = NULL, const NameValuePairs &  parameters = g_nullNameValuePairs  ) const

virtualinherited

create a new encryption filter

Note

The caller is responsible for deleting the returned pointer.

Encoding parameters should be passed in the "EP" channel.

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

• pubkey.h