Crypto++  5.6.3
Free C++ class library of cryptographic schemes
Public Types | Public Member Functions | Static Public Member Functions | List of all members
DL_EncryptorImpl< SCHEME_OPTIONS > Class Template Reference

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+ Inheritance diagram for DL_EncryptorImpl< SCHEME_OPTIONS >:

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
 Copies this object. More...

Static Public Member Functions

static std::string StaticAlgorithmName ()

Detailed Description

template<class SCHEME_OPTIONS>
class DL_EncryptorImpl< SCHEME_OPTIONS >


Definition at line 1577 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

Encrypt a byte string.

rnga RandomNumberGenerator derived class
plaintextthe plaintext byte buffer
plaintextLengththe size of the plaintext byte buffer
ciphertexta byte buffer to hold the encrypted string
parametersadditional configuration options
CiphertextLength(plaintextLength) != 0 ensures the plaintext isn't too large
COUNTOF(ciphertext) == CiphertextLength(plaintextLength) ensures the output byte buffer is large enough.
See also

Implements PK_Encryptor.

Definition at line 1429 of file pubkey.h.

References Integer::One().

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

Create a new encryption filter.

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

Definition at line 816 of file cryptlib.cpp.

virtual size_t PK_CryptoSystem::FixedCiphertextLength ( ) const

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

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

Definition at line 2099 of file cryptlib.h.

Referenced by PK_Decryptor::FixedLengthDecrypt().

virtual Clonable* Clonable::Clone ( ) const

Copies this object.

a copy of this object
this is not implemented by most classes
See also

Definition at line 460 of file cryptlib.h.

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