org.cryptacular.adapter

Interface CipherAdapter

All Known Subinterfaces:

BlockCipherAdapter

All Known Implementing Classes:

AEADBlockCipherAdapter, BufferedBlockCipherAdapter

public interface CipherAdapter

Provides a consistent interface for cipher operations against dissimilar BC cipher types.

Author:

Middleware Services

Method Summary

Modifier and Type	Method and Description
void	init(boolean forEncryption, org.bouncycastle.crypto.CipherParameters params) Initialize the underlying cipher.
int	processBytes(byte[] in, int inOff, int len, byte[] out, int outOff) Process an array of bytes, producing output if necessary.
void	reset() Reset the cipher.

Method Detail

init

void init(boolean forEncryption,
          org.bouncycastle.crypto.CipherParameters params)
   throws CryptoException

Initialize the underlying cipher.

Parameters:

forEncryption - True for encryption mode, false for decryption mode.

params - Cipher initialization parameters.

Throws:

CryptoException - on underlying cipher initialization errors.

processBytes

int processBytes(byte[] in,
                 int inOff,
                 int len,
                 byte[] out,
                 int outOff)
          throws CryptoException

Process an array of bytes, producing output if necessary.

Parameters:

in - Input data.

inOff - Offset at which the input data starts.

len - The number of bytes in the input data to process.

out - Array to receive any data produced by cipher.

outOff - Offset into output array.

Returns:

The number of bytes produced by the cipher.

Throws:

CryptoException - on underlying cipher data handling errors.

reset

void reset()

Reset the cipher. After resetting the cipher is in the same state as it was after the last init (if there was one).