#include <cryptlib.h>
Inheritance diagram for PK_Decryptor:
Definition at line 1187 of file cryptlib.h.
Public Member Functions | |
virtual DecodingResult | Decrypt (RandomNumberGenerator &rng, const byte *ciphertext, size_t ciphertextLength, byte *plaintext, const NameValuePairs ¶meters=g_nullNameValuePairs) const =0 |
decrypt a byte string, and return the length of plaintext | |
virtual BufferedTransformation * | CreateDecryptionFilter (RandomNumberGenerator &rng, BufferedTransformation *attachment=NULL, const NameValuePairs ¶meters=g_nullNameValuePairs) const |
create a new decryption filter | |
DecodingResult | FixedLengthDecrypt (RandomNumberGenerator &rng, const byte *ciphertext, byte *plaintext, const NameValuePairs ¶meters=g_nullNameValuePairs) const |
decrypt a fixed size ciphertext | |
virtual size_t | MaxPlaintextLength (size_t ciphertextLength) const =0 |
maximum length of plaintext for a given ciphertext length | |
virtual size_t | CiphertextLength (size_t plaintextLength) const =0 |
calculate length of ciphertext given length of plaintext | |
virtual bool | ParameterSupported (const char *name) const =0 |
this object supports the use of the parameter with the given name | |
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 PrivateKey & | AccessPrivateKey ()=0 |
virtual const PrivateKey & | GetPrivateKey () 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 |
returns name of this algorithm, not universally implemented yet | |
virtual Clonable * | Clone () const |
this is not implemented by most classes yet |
virtual DecodingResult PK_Decryptor::Decrypt | ( | RandomNumberGenerator & | rng, | |
const byte * | ciphertext, | |||
size_t | ciphertextLength, | |||
byte * | plaintext, | |||
const NameValuePairs & | parameters = g_nullNameValuePairs | |||
) | const [pure virtual] |
decrypt a byte string, and return the length of plaintext
Implemented in TF_DecryptorBase, DL_DecryptorBase< T >, and DL_DecryptorBase< SCHEME_OPTIONS::Element >.
Referenced by PK_DefaultDecryptionFilter::Put2().
BufferedTransformation * PK_Decryptor::CreateDecryptionFilter | ( | RandomNumberGenerator & | rng, | |
BufferedTransformation * | attachment = NULL , |
|||
const NameValuePairs & | parameters = g_nullNameValuePairs | |||
) | const [virtual] |
create a new decryption filter
Definition at line 618 of file cryptlib.cpp.
virtual size_t PK_CryptoSystem::MaxPlaintextLength | ( | size_t | ciphertextLength | ) | const [pure virtual, inherited] |
maximum length of plaintext for a given ciphertext length
Implemented in PK_FixedLengthCryptoSystemImpl< PK_Encryptor >, PK_FixedLengthCryptoSystemImpl< PK_Decryptor >, DL_CryptoSystemBase< PK_Decryptor, DL_PrivateKey< SCHEME_OPTIONS::Element > >, DL_CryptoSystemBase< PK_Decryptor, DL_PrivateKey< T > >, DL_CryptoSystemBase< PK_Encryptor, DL_PublicKey< SCHEME_OPTIONS::Element > >, and DL_CryptoSystemBase< PK_Encryptor, DL_PublicKey< T > >.
Referenced by PK_DefaultDecryptionFilter::Put2().
virtual size_t PK_CryptoSystem::CiphertextLength | ( | size_t | plaintextLength | ) | const [pure virtual, inherited] |
calculate length of ciphertext given length of plaintext
Implemented in PK_FixedLengthCryptoSystemImpl< PK_Encryptor >, PK_FixedLengthCryptoSystemImpl< PK_Decryptor >, DL_CryptoSystemBase< PK_Decryptor, DL_PrivateKey< SCHEME_OPTIONS::Element > >, DL_CryptoSystemBase< PK_Decryptor, DL_PrivateKey< T > >, DL_CryptoSystemBase< PK_Encryptor, DL_PublicKey< SCHEME_OPTIONS::Element > >, and DL_CryptoSystemBase< PK_Encryptor, DL_PublicKey< T > >.
Referenced by PK_DefaultEncryptionFilter::Put2().
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
Implemented in TF_CryptoSystemBase< PK_Decryptor, TF_Base< TrapdoorFunctionInverse, PK_EncryptionMessageEncodingMethod > >, TF_CryptoSystemBase< PK_Encryptor, TF_Base< RandomizedTrapdoorFunction, PK_EncryptionMessageEncodingMethod > >, DL_CryptoSystemBase< PK_Decryptor, DL_PrivateKey< SCHEME_OPTIONS::Element > >, DL_CryptoSystemBase< PK_Decryptor, DL_PrivateKey< T > >, DL_CryptoSystemBase< PK_Encryptor, DL_PublicKey< SCHEME_OPTIONS::Element > >, and DL_CryptoSystemBase< PK_Encryptor, DL_PublicKey< T > >.
virtual size_t PK_CryptoSystem::FixedCiphertextLength | ( | ) | const [inline, virtual, inherited] |
return fixed ciphertext length, if one exists, otherwise return 0
Reimplemented in TF_CryptoSystemBase< PK_Decryptor, TF_Base< TrapdoorFunctionInverse, PK_EncryptionMessageEncodingMethod > >, and TF_CryptoSystemBase< PK_Encryptor, TF_Base< RandomizedTrapdoorFunction, PK_EncryptionMessageEncodingMethod > >.
Definition at line 1147 of file cryptlib.h.
Referenced by FixedLengthDecrypt().