Crypto++
Public Types | Public Member Functions | Static Public Member Functions | Protected Types | Protected Member Functions | List of all members
DL_EncryptorImpl< SCHEME_OPTIONS > Class Template Reference

_ More...

#include <pubkey.h>

Inheritance diagram for DL_EncryptorImpl< SCHEME_OPTIONS >:
DL_ObjectImpl< DL_EncryptorBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey > DL_ObjectImplBase< DL_EncryptorBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS, SCHEME_OPTIONS::PublicKey > AlgorithmImpl< DL_EncryptorBase< SCHEME_OPTIONS::Element >, SCHEME_OPTIONS::AlgorithmInfo > DL_EncryptorBase< SCHEME_OPTIONS::Element > DL_CryptoSystemBase< PK_Encryptor, DL_PublicKey< SCHEME_OPTIONS::Element > > PK_Encryptor DL_Base< DL_PublicKey< SCHEME_OPTIONS::Element > > PK_CryptoSystem PublicKeyAlgorithm AsymmetricAlgorithm Algorithm Clonable

Public Types

typedef
SCHEME_OPTIONS::PublicKey::Element 
Element
 
typedef SCHEME_OPTIONS SchemeOptions
 

Public Member Functions

PrivateKeyAccessPrivateKey ()
 
PublicKeyAccessPublicKey ()
 
const SCHEME_OPTIONS::PublicKey & GetKey () const
 
SCHEME_OPTIONS::PublicKey & AccessKey ()
 
std::string AlgorithmName () const
 
void Encrypt (RandomNumberGenerator &rng, const byte *plaintext, size_t plaintextLength, byte *ciphertext, const NameValuePairs &parameters=g_nullNameValuePairs) const
 encrypt a byte string More...
 
size_t MaxPlaintextLength (size_t ciphertextLength) const
 
size_t CiphertextLength (size_t plaintextLength) const
 
bool ParameterSupported (const char *name) const
 
virtual BufferedTransformationCreateEncryptionFilter (RandomNumberGenerator &rng, BufferedTransformation *attachment=NULL, const NameValuePairs &parameters=g_nullNameValuePairs) const
 create a new encryption filter More...
 
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
 
CryptoMaterialAccessMaterial ()
 returns a reference to the crypto material used by this object
 
const CryptoMaterialGetMaterial () const
 returns a const reference to the crypto material used by this object
 
virtual const PublicKeyGetPublicKey () 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 ClonableClone () 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

void DL_EncryptorBase< SCHEME_OPTIONS::Element >::Encrypt ( RandomNumberGenerator rng,
const byte *  plaintext,
size_t  plaintextLength,
byte *  ciphertext,
const NameValuePairs parameters = g_nullNameValuePairs 
) const
inlinevirtualinherited

encrypt a byte string

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

Implements PK_Encryptor.

Definition at line 1220 of file pubkey.h.

References Integer::One().

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.
virtual size_t PK_CryptoSystem::FixedCiphertextLength ( ) const
inlinevirtualinherited

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 1211 of file cryptlib.h.

Referenced by PK_Decryptor::FixedLengthDecrypt().


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