TF_EncryptorBase Class Reference

Trapdoor function cryptosystems encryption base class. More...

#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. More...
Public Member Functions inherited from TF_CryptoSystemBase< PK_Encryptor, TF_Base< RandomizedTrapdoorFunction, PK_EncryptionMessageEncodingMethod > >
bool	ParameterSupported (const char *name) const
size_t	FixedMaxPlaintextLength () const
size_t	FixedCiphertextLength () const
Public Member Functions inherited from PK_FixedLengthCryptoSystemImpl< PK_Encryptor >
size_t	MaxPlaintextLength (size_t ciphertextLength) const
size_t	CiphertextLength (size_t plaintextLength) const
virtual size_t	FixedMaxPlaintextLength () const=0
virtual size_t	FixedCiphertextLength () const=0
Public Member Functions inherited from PK_Encryptor
virtual void	Encrypt (RandomNumberGenerator &rng, const byte *plaintext, size_t plaintextLength, byte *ciphertext, const NameValuePairs &parameters=g_nullNameValuePairs) const =0
	Encrypt a byte string. More...
virtual BufferedTransformation *	CreateEncryptionFilter (RandomNumberGenerator &rng, BufferedTransformation *attachment=NULL, const NameValuePairs &parameters=g_nullNameValuePairs) const
	Create a new encryption filter. More...
virtual size_t	MaxPlaintextLength (size_t ciphertextLength) const =0
	Provides the maximum length of plaintext for a given ciphertext length. More...
virtual size_t	CiphertextLength (size_t plaintextLength) const =0
	Calculate the length of ciphertext given length of plaintext. More...
virtual bool	ParameterSupported (const char *name) const =0
	Determines whether this object supports the use of a named parameter. More...
virtual size_t	FixedCiphertextLength () const
	Provides the fixed ciphertext length, if one exists. More...
virtual size_t	FixedMaxPlaintextLength () const
	Provides the maximum plaintext length given a fixed ciphertext length. More...
Public Member Functions inherited from PublicKeyAlgorithm
CryptoMaterial &	AccessMaterial ()
	Retrieves a reference to a Public Key. More...
const CryptoMaterial &	GetMaterial () const
	Retrieves a reference to a Public Key. More...
virtual PublicKey &	AccessPublicKey ()=0
	Retrieves a reference to a Public Key. More...
virtual const PublicKey &	GetPublicKey () const
	Retrieves a reference to a Public Key. More...
virtual CryptoMaterial &	AccessMaterial ()=0
	Retrieves a reference to CryptoMaterial. More...
virtual const CryptoMaterial &	GetMaterial () const =0
	Retrieves a reference to CryptoMaterial. More...
Public Member Functions inherited from Algorithm
	Algorithm (bool checkSelfTestStatus=true)
	Interface for all crypto algorithms. More...
virtual std::string	AlgorithmName () const
	Provides the name of this algorithm. More...
virtual std::string	AlgorithmProvider () const
	Retrieve the provider of this algorithm. More...
Public Member Functions inherited from Clonable
virtual Clonable *	Clone () const
	Copies this object. More...

Detailed Description

Trapdoor function cryptosystems encryption base class.

Definition at line 292 of file pubkey.h.

Constructor & Destructor Documentation

~TF_EncryptorBase()

virtual TF_EncryptorBase::~TF_EncryptorBase ( )

inlinevirtual

Definition at line 295 of file pubkey.h.

Member Function Documentation

Encrypt()

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.

Parameters

rng	a RandomNumberGenerator derived class
plaintext	the plaintext byte buffer
plaintextLength	the size of the plaintext byte buffer
ciphertext	a byte buffer to hold the encrypted string
parameters	a set of NameValuePairs to initialize this object

Precondition

CiphertextLength(plaintextLength) != 0 ensures the plaintext isn't too large

COUNTOF(ciphertext) == CiphertextLength(plaintextLength) ensures the output byte buffer is large enough.

See also

PK_Decryptor

Implements PK_Encryptor.

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

• pubkey.h