#include <pubkey.h>

Inheritance diagram for DL_EncryptorImpl< SCHEME_OPTIONS >:

Public Types
typedef SCHEME_OPTIONS::PublicKey::Element	Element
typedef SCHEME_OPTIONS	SchemeOptions
Public Member Functions
PrivateKey &	AccessPrivateKey ()
PublicKey &	AccessPublicKey ()
virtual PublicKey &	AccessPublicKey ()=0
const SCHEME_OPTIONS::PublicKey &	GetKey () const
SCHEME_OPTIONS::PublicKey &	AccessKey ()
std::string	AlgorithmName () const
virtual std::string	AlgorithmName () const
	returns name of this algorithm, not universally implemented yet
void	Encrypt (RandomNumberGenerator &rng, const byte plaintext, size_t plaintextLength, byte ciphertext, const NameValuePairs &parameters=g_nullNameValuePairs) const
virtual void	Encrypt (RandomNumberGenerator &rng, const byte plaintext, size_t plaintextLength, byte ciphertext, const NameValuePairs &parameters=g_nullNameValuePairs) const =0
	encrypt a byte string
size_t	MaxPlaintextLength (size_t ciphertextLength) const
virtual size_t	MaxPlaintextLength (size_t ciphertextLength) const =0
	maximum length of plaintext for a given ciphertext length
size_t	CiphertextLength (size_t plaintextLength) const
virtual size_t	CiphertextLength (size_t plaintextLength) const =0
	calculate length of ciphertext given length of plaintext
bool	ParameterSupported (const char *name) const
virtual bool	ParameterSupported (const char *name) const =0
	this object supports the use of the parameter with the given name
virtual BufferedTransformation *	CreateEncryptionFilter (RandomNumberGenerator &rng, BufferedTransformation *attachment=NULL, const NameValuePairs &parameters=g_nullNameValuePairs) const
	create a new encryption filter
virtual size_t	FixedCiphertextLength () const
	return fixed ciphertext length, if one exists, otherwise return 0
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 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 Clonable *	Clone () const
	this is not implemented by most classes yet
Static Public Member Functions
static std::string	StaticAlgorithmName ()
Protected Types
typedef DL_PublicKey < SCHEME_OPTIONS::Element >	KeyInterface
Protected Member Functions
const DL_ElgamalLikeSignatureAlgorithm < Element > &	GetSignatureAlgorithm () const
const DL_KeyAgreementAlgorithm < Element > &	GetKeyAgreementAlgorithm () const
const DL_KeyDerivationAlgorithm < Element > &	GetKeyDerivationAlgorithm () const
const DL_SymmetricEncryptionAlgorithm &	GetSymmetricEncryptionAlgorithm () const
HashIdentifier	GetHashIdentifier () const
const PK_SignatureMessageEncodingMethod &	GetMessageEncodingInterface () const
DL_EncryptorBase < SCHEME_OPTIONS::Element > ::KeyInterface &	AccessKeyInterface ()
const DL_EncryptorBase < SCHEME_OPTIONS::Element > ::KeyInterface &	GetKeyInterface () const
size_t	GetDigestSize () const
const DL_GroupParameters < Element > &	GetAbstractGroupParameters () const
DL_GroupParameters< Element > &	AccessAbstractGroupParameters ()

Detailed Description

template<class SCHEME_OPTIONS>
class DL_EncryptorImpl< SCHEME_OPTIONS >

_

Definition at line 1362 of file pubkey.h.

Member Function Documentation

virtual void PK_Encryptor::Encrypt	(	RandomNumberGenerator &	rng,
		const byte *	plaintext,
		size_t	plaintextLength,
		byte *	ciphertext,
		const NameValuePairs &	parameters = `g_nullNameValuePairs`
	)			const `[pure virtual, inherited]`

encrypt a byte string

Precondition:: CiphertextLength(plaintextLength) != 0 (i.e., plaintext isn't too long); size of ciphertext == CiphertextLength(plaintextLength)

virtual size_t PK_CryptoSystem::MaxPlaintextLength ( size_t ciphertextLength ) const [pure virtual, inherited]

maximum length of plaintext for a given ciphertext length

Note:: This function returns 0 if ciphertextLength is not valid (too long or too short).

virtual size_t PK_CryptoSystem::CiphertextLength ( size_t plaintextLength ) const [pure virtual, inherited]

calculate length of ciphertext given length of plaintext

Note:: This function returns 0 if plaintextLength is not valid (too long).

virtual bool PK_CryptoSystem::ParameterSupported ( const char * name ) const [pure virtual, inherited]

this object supports the use of the parameter with the given name

some possible parameter names: EncodingParameters, KeyDerivationParameters

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

create a new encryption filter

Note:: The caller is responsible for deleting the returned pointer.; Encoding parameters should be passed in the "EP" channel.

Definition at line 703 of file cryptlib.cpp.

virtual size_t PK_CryptoSystem::FixedCiphertextLength ( ) const [inline, virtual, inherited]

return fixed ciphertext length, if one exists, otherwise return 0

Note:: "Fixed" here means length of ciphertext does not depend on length of plaintext. It usually does depend on the key length.

Definition at line 1212 of file cryptlib.h.

Referenced by PK_Decryptor::FixedLengthDecrypt().

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

pubkey.h

DL_EncryptorImpl< SCHEME_OPTIONS > Class Template Reference

Public Types

Public Member Functions

Static Public Member Functions

Protected Types

Protected Member Functions

Detailed Description

template<class SCHEME_OPTIONS> class DL_EncryptorImpl< SCHEME_OPTIONS >

Member Function Documentation

template<class SCHEME_OPTIONS>
class DL_EncryptorImpl< SCHEME_OPTIONS >