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#include <pubkey.h>
Inheritance diagram for TF_DecryptorBase:
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, and return the length of plaintext | |
| bool | ParameterSupported (const char *name) const |
| this object supports the use of the parameter with the given name | |
| size_t | FixedMaxPlaintextLength () const |
| return maximum plaintext length given the fixed ciphertext length, if one exists, otherwise return 0 | |
| size_t | FixedCiphertextLength () const |
| return fixed ciphertext length, if one exists, otherwise return 0 | |
| size_t | MaxPlaintextLength (size_t ciphertextLength) const |
| maximum length of plaintext for a given ciphertext length | |
| size_t | CiphertextLength (size_t plaintextLength) const |
| calculate length of ciphertext given 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 | |
| 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 | |
Protected Types | |
| typedef TrapdoorFunctionInverse | TrapdoorFunctionInterface |
|
typedef PK_EncryptionMessageEncodingMethod | MessageEncodingInterface |
Protected Member Functions | |
| size_t | PaddedBlockByteLength () const |
| size_t | PaddedBlockBitLength () const |
|
virtual const TrapdoorFunctionBounds & | GetTrapdoorFunctionBounds () const =0 |
|
virtual const TrapdoorFunctionInterface & | GetTrapdoorFunctionInterface () const =0 |
|
virtual const MessageEncodingInterface & | GetMessageEncodingInterface () const =0 |
Detailed Description
Member Function Documentation
| DecodingResult TF_DecryptorBase::Decrypt | ( | RandomNumberGenerator & | rng, |
| const byte * | ciphertext, | ||
| size_t | ciphertextLength, | ||
| byte * | plaintext, | ||
| const NameValuePairs & | parameters = g_nullNameValuePairs |
||
| ) | const [virtual] |
decrypt a byte string, and return the length of plaintext
- Precondition:
- size of plaintext == MaxPlaintextLength(ciphertextLength) bytes.
- Returns:
- the actual length of the plaintext, indication that decryption failed.
Implements PK_Decryptor.
| bool TF_CryptoSystemBase< PK_Decryptor , TF_Base< TrapdoorFunctionInverse, PK_EncryptionMessageEncodingMethod > >::ParameterSupported | ( | const char * | name | ) | const [inline, virtual, inherited] |
Implements PK_CryptoSystem.
| size_t TF_CryptoSystemBase< PK_Decryptor , TF_Base< TrapdoorFunctionInverse, PK_EncryptionMessageEncodingMethod > >::FixedCiphertextLength | ( | ) | const [inline, virtual, inherited] |
Implements PK_FixedLengthCryptoSystemImpl< PK_Decryptor >.
| size_t PK_FixedLengthCryptoSystemImpl< PK_Decryptor >::MaxPlaintextLength | ( | size_t | ciphertextLength | ) | const [inline, virtual, inherited] |
Implements PK_CryptoSystem.
| size_t PK_FixedLengthCryptoSystemImpl< PK_Decryptor >::CiphertextLength | ( | size_t | plaintextLength | ) | const [inline, virtual, inherited] |
Implements PK_CryptoSystem.
| virtual BufferedTransformation* PK_Decryptor::CreateDecryptionFilter | ( | RandomNumberGenerator & | rng, |
| BufferedTransformation * | attachment = NULL, |
||
| const NameValuePairs & | parameters = g_nullNameValuePairs |
||
| ) | const [virtual, inherited] |
create a new decryption filter
- Note:
- caller is responsible for deleting the returned pointer
The documentation for this class was generated from the following file:
