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#include <pubkey.h>
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 ¶meters=g_nullNameValuePairs) const |
| 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 | |
| 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 | |
| virtual void | Encrypt (RandomNumberGenerator &rng, const byte *plaintext, size_t plaintextLength, byte *ciphertext, const NameValuePairs ¶meters=g_nullNameValuePairs) const =0 |
| encrypt a byte string | |
| virtual BufferedTransformation * | CreateEncryptionFilter (RandomNumberGenerator &rng, BufferedTransformation *attachment=NULL, const NameValuePairs ¶meters=g_nullNameValuePairs) const |
| create a new encryption filter | |
| 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 PublicKey & | AccessPublicKey ()=0 |
| virtual const PublicKey & | GetPublicKey () 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 DL_PublicKey< T > | KeyInterface |
Protected Member Functions | |
|
virtual const DL_KeyAgreementAlgorithm < Element > & | GetKeyAgreementAlgorithm () const =0 |
|
virtual const DL_KeyDerivationAlgorithm < Element > & | GetKeyDerivationAlgorithm () const =0 |
|
virtual const DL_SymmetricEncryptionAlgorithm & | GetSymmetricEncryptionAlgorithm () const =0 |
|
const DL_GroupParameters < Element > & | GetAbstractGroupParameters () const |
| DL_GroupParameters< Element > & | AccessAbstractGroupParameters () |
| virtual KeyInterface & | AccessKeyInterface ()=0 |
| virtual const KeyInterface & | GetKeyInterface () const =0 |
Detailed Description
template<class T>
class DL_EncryptorBase< T >
_
Definition at line 1215 of file pubkey.h.
Member Function Documentation
| 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).
| 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 void PK_Encryptor::Encrypt | ( | RandomNumberGenerator & | rng, | |
| const byte * | plaintext, | |||
| size_t | plaintextLength, | |||
| byte * | ciphertext, | |||
| const NameValuePairs & | parameters = g_nullNameValuePairs | |||
| ) | const [pure virtual, inherited] |
encrypt a byte string
- Precondition:
- CiphertextLength(plaintextLength) != 0 (i.e., plaintext isn't too long)
- size of ciphertext == CiphertextLength(plaintextLength)
| BufferedTransformation * PK_Encryptor::CreateEncryptionFilter | ( | RandomNumberGenerator & | rng, | |
| BufferedTransformation * | attachment = NULL, |
|||
| const NameValuePairs & | parameters = g_nullNameValuePairs | |||
| ) | const [virtual, inherited] |
create a new encryption filter
- Note:
- The caller is responsible for deleting the returned pointer.
- Encoding parameters should be passed in the "EP" channel.
Definition at line 703 of file cryptlib.cpp.
| 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().
The documentation for this class was generated from the following file:
Generated on Mon Aug 9 2010 15:57:08 for Crypto++ by
1.7.1