Crypto++  5.6.3
Free C++ class library of cryptographic schemes
Public Types | Public Member Functions | List of all members
DL_EncryptorBase< T > Class Template Referenceabstract

_ More...

+ Inheritance diagram for DL_EncryptorBase< T >:

Public Types

typedef T Element

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...
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 PublicKeyAccessPublicKey ()=0
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 std::string AlgorithmName () const
 Provides the name of this algorithm. More...
virtual ClonableClone () const
 Copies this object. More...

Detailed Description

template<class T>
class DL_EncryptorBase< T >


Definition at line 1424 of file pubkey.h.

Member Function Documentation

template<class T>
void DL_EncryptorBase< T >::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.

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 std::string Algorithm::AlgorithmName ( ) const

Provides the name of this algorithm.

the standard algorithm name

The standard algorithm name can be a name like AES or AES/GCM. Some algorithms do not have standard names yet. For example, there is no standard algorithm name for Shoup's ECIES.

AlgorithmName is not universally implemented yet

Reimplemented in AuthenticatedSymmetricCipher, SignatureVerificationFilter, SignerFilter, AuthenticatedDecryptionFilter, HashVerificationFilter, HashFilter, StreamTransformationFilter, ClassNullRNG, BitBucket, RDSEED, DH_Domain< GROUP_PARAMETERS, COFACTOR_OPTION >, HMAC< T >, RDRAND, CRC32, GCM_Base, Adler32, EAX_Base, CCM_Base, SHA3, and VMAC_Base.

Definition at line 484 of file cryptlib.h.

Referenced by BufferedTransformation::ChannelCreatePutSpace(), BufferedTransformation::ChannelFlush(), BufferedTransformation::ChannelMessageSeriesEnd(), BufferedTransformation::ChannelPut2(), TF_DecryptorBase::Decrypt(), TF_EncryptorBase::Encrypt(), StreamTransformation::ProcessLastBlock(), and PK_DefaultDecryptionFilter::Put2().

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: