#include <cryptlib.h>
Inheritance diagram for PK_CryptoSystem:
This class provides an interface common to encryptors and decryptors for querying their plaintext and ciphertext lengths.
Definition at line 1109 of file cryptlib.h.
Public Member Functions | |
virtual unsigned int | MaxPlaintextLength (unsigned int ciphertextLength) const =0 |
maximum length of plaintext for a given ciphertext length | |
virtual unsigned int | CiphertextLength (unsigned int 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 unsigned int | FixedCiphertextLength () const |
return fixed ciphertext length, if one exists, otherwise return 0 | |
virtual unsigned int | FixedMaxPlaintextLength () const |
return maximum plaintext length given the fixed ciphertext length, if one exists, otherwise return 0 |
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maximum length of plaintext for a given ciphertext length
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calculate length of ciphertext given length of plaintext
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this object supports the use of the parameter with the given name some possible parameter names: EncodingParameters, KeyDerivationParameters |
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return fixed ciphertext length, if one exists, otherwise return 0
Referenced by TF_DecryptorBase::Decrypt(), and TF_EncryptorBase::Encrypt(). |