Discrete Log (DL) decryptor base implementation. More...
#include <pubkey.h>
Inheritance diagram for DL_DecryptorBase< T >:
Public Types | |
| typedef T | Element |
| Public Types inherited from DL_CryptoSystemBase< PK_Decryptor, DL_PrivateKey< T > > | |
| typedef DL_Base< DL_PrivateKey< T > >::Element | Element |
Public Member Functions | |
| DecodingResult | Decrypt (RandomNumberGenerator &rng, const byte *ciphertext, size_t ciphertextLength, byte *plaintext, const NameValuePairs ¶meters=g_nullNameValuePairs) const |
| Decrypt a byte string. | |
| Public Member Functions inherited from DL_CryptoSystemBase< PK_Decryptor, DL_PrivateKey< T > > | |
| size_t | MaxPlaintextLength (size_t ciphertextLength) const |
| size_t | CiphertextLength (size_t plaintextLength) const |
| bool | ParameterSupported (const char *name) const |
| Public Member Functions inherited from PK_Decryptor | |
| 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. | |
| Public Member Functions inherited from PK_CryptoSystem | |
| virtual size_t | FixedCiphertextLength () const |
| Provides the fixed ciphertext length, if one exists. | |
| virtual size_t | FixedMaxPlaintextLength () const |
| Provides the maximum plaintext length given a fixed ciphertext length. | |
| Public Member Functions inherited from PrivateKeyAlgorithm | |
| CryptoMaterial & | AccessMaterial () |
| Retrieves a reference to a Private Key. | |
| const CryptoMaterial & | GetMaterial () const |
| Retrieves a reference to a Private Key. | |
| virtual PrivateKey & | AccessPrivateKey ()=0 |
| Retrieves a reference to a Private Key. | |
| virtual const PrivateKey & | GetPrivateKey () const |
| Retrieves a reference to a Private Key. | |
| Public Member Functions inherited from Algorithm | |
| Algorithm (bool checkSelfTestStatus=true) | |
| Interface for all crypto algorithms. | |
| virtual std::string | AlgorithmName () const |
| Provides the name of this algorithm. | |
| virtual std::string | AlgorithmProvider () const |
| Retrieve the provider of this algorithm. | |
| Public Member Functions inherited from Clonable | |
| virtual Clonable * | Clone () const |
| Copies this object. | |
Detailed Description
template<class T>
class DL_DecryptorBase< T >
class DL_DecryptorBase< T >
Discrete Log (DL) decryptor base implementation.
- Template Parameters
-
T Field element type or class
Member Typedef Documentation
◆ Element
template<class T >
| typedef T DL_DecryptorBase< T >::Element |
Constructor & Destructor Documentation
◆ ~DL_DecryptorBase()
template<class T >
|
inlinevirtual |
Member Function Documentation
◆ Decrypt()
template<class T >
|
inlinevirtual |
Decrypt a byte string.
- Parameters
-
rng a RandomNumberGenerator derived class ciphertext the encrypted byte buffer ciphertextLength the size of the encrypted byte buffer plaintext a byte buffer to hold the decrypted string parameters a set of NameValuePairs to initialize this object
- Returns
- the result of the decryption operation
If DecodingResult::isValidCoding is true, then DecodingResult::messageLength is valid and holds the actual length of the plaintext recovered. The result is undefined if decryption failed. If DecodingResult::isValidCoding is false, then DecodingResult::messageLength is undefined.
- Precondition
COUNTOF(plaintext) == MaxPlaintextLength(ciphertextLength)ensures the output byte buffer is large enough
- See also
- PK_Encryptor
Implements PK_Decryptor.
The documentation for this class was generated from the following file:
