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#include <pubkey.h>
Inheritance diagram for TF_DecryptorImpl< SCHEME_OPTIONS >:
Public Types | |
| typedef SCHEME_OPTIONS::PrivateKey | KeyClass |
| typedef SCHEME_OPTIONS | SchemeOptions |
Public Member Functions | |
| const KeyClass & | GetKey () const |
| KeyClass & | AccessKey () |
| PublicKey & | AccessPublicKey () |
| const PublicKey & | GetPublicKey () const |
| PrivateKey & | AccessPrivateKey () |
| virtual PrivateKey & | AccessPrivateKey ()=0 |
| const PrivateKey & | GetPrivateKey () const |
| virtual const PrivateKey & | GetPrivateKey () const |
| const KeyClass & | GetTrapdoorFunction () const |
| PK_MessageAccumulator * | NewSignatureAccumulator (RandomNumberGenerator &rng) const |
| PK_MessageAccumulator * | NewVerificationAccumulator () const |
| std::string | AlgorithmName () const |
| virtual std::string | AlgorithmName () const |
| returns name of this algorithm, not universally implemented yet | |
| DecodingResult | Decrypt (RandomNumberGenerator &rng, const byte *ciphertext, size_t ciphertextLength, byte *plaintext, const NameValuePairs ¶meters=g_nullNameValuePairs) const |
| 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 | |
| bool | ParameterSupported (const char *name) const |
| virtual bool | ParameterSupported (const char *name) const =0 |
| this object supports the use of the parameter with the given name | |
| size_t | FixedMaxPlaintextLength () const |
| virtual size_t | FixedMaxPlaintextLength () const =0 |
| virtual size_t | FixedMaxPlaintextLength () const |
| return maximum plaintext length given the fixed ciphertext length, if one exists, otherwise return 0 | |
| size_t | FixedCiphertextLength () const |
| virtual size_t | FixedCiphertextLength () const =0 |
| virtual size_t | FixedCiphertextLength () const |
| return fixed ciphertext length, if one exists, otherwise return 0 | |
| size_t | MaxPlaintextLength (size_t ciphertextLength) const |
| virtual size_t | MaxPlaintextLength (size_t ciphertextLength) const =0 |
| maximum length of plaintext for a given ciphertext length | |
| size_t | CiphertextLength (size_t plaintextLength) const |
| virtual size_t | CiphertextLength (size_t plaintextLength) const =0 |
| 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 | |
| void | BERDecode (BufferedTransformation &bt) |
| for backwards compatibility, calls AccessMaterial().Load(bt) | |
| void | DEREncode (BufferedTransformation &bt) const |
| for backwards compatibility, calls GetMaterial().Save(bt) | |
| virtual Clonable * | Clone () const |
| this is not implemented by most classes yet | |
Static Public Member Functions | |
| static std::string | StaticAlgorithmName () |
Protected Types | |
| typedef TrapdoorFunctionInverse | TrapdoorFunctionInterface |
|
typedef PK_EncryptionMessageEncodingMethod | MessageEncodingInterface |
Protected Member Functions | |
|
const TF_DecryptorBase::MessageEncodingInterface & | GetMessageEncodingInterface () const |
| const TrapdoorFunctionBounds & | GetTrapdoorFunctionBounds () const |
|
const TF_DecryptorBase::TrapdoorFunctionInterface & | GetTrapdoorFunctionInterface () const |
| HashIdentifier | GetHashIdentifier () const |
| size_t | GetDigestSize () const |
| size_t | PaddedBlockByteLength () const |
| size_t | PaddedBlockBitLength () const |
Detailed Description
template<class SCHEME_OPTIONS>
class TF_DecryptorImpl< SCHEME_OPTIONS >
_
Definition at line 451 of file pubkey.h.
Member Function Documentation
| virtual DecodingResult PK_Decryptor::Decrypt | ( | RandomNumberGenerator & | rng, | |
| const byte * | ciphertext, | |||
| size_t | ciphertextLength, | |||
| byte * | plaintext, | |||
| const NameValuePairs & | parameters = g_nullNameValuePairs | |||
| ) | const [pure virtual, inherited] |
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.
| 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
| virtual size_t PK_CryptoSystem::FixedCiphertextLength | ( | ) | const [inline, virtual, inherited] |
return fixed ciphertext length, if one exists, otherwise return 0
- Note:
- "Fixed" here means length of ciphertext does not depend on length of plaintext. It usually does depend on the key length.
Definition at line 1212 of file cryptlib.h.
Referenced by PK_Decryptor::FixedLengthDecrypt().
| virtual size_t PK_CryptoSystem::MaxPlaintextLength | ( | size_t | ciphertextLength | ) | const [pure virtual, inherited] |
maximum length of plaintext for a given ciphertext length
- Note:
- This function returns 0 if ciphertextLength is not valid (too long or too short).
| virtual size_t PK_CryptoSystem::CiphertextLength | ( | size_t | plaintextLength | ) | const [pure virtual, inherited] |
calculate length of ciphertext given length of plaintext
- Note:
- This function returns 0 if plaintextLength is not valid (too long).
| 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
Definition at line 751 of file cryptlib.cpp.
The documentation for this class was generated from the following file:
Generated on Mon Aug 9 2010 15:58:19 for Crypto++ by
1.7.1