org.bouncycastle.crypto.engines
Class BlowfishEngine
java.lang.Object
org.bouncycastle.crypto.engines.BlowfishEngine
- BlockCipher
public final class BlowfishEngine
extends java.lang.Object
A class that provides Blowfish key encryption operations,
such as encoding data and generating keys.
All the algorithms herein are from Applied Cryptography
and implement a simplified cryptography interface.
String | getAlgorithmName() - Return the name of the algorithm the cipher implements.
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int | getBlockSize() - Return the block size for this cipher (in bytes).
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void | init(boolean encrypting, CipherParameters params) - initialise a Blowfish cipher.
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int | processBlock(byte[] in, int inOff, byte[] out, int outOff) - Process one block of input from the array in and write it to
the out array.
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void | reset() - Reset the cipher.
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BlowfishEngine
public BlowfishEngine()
getAlgorithmName
public String getAlgorithmName()
Return the name of the algorithm the cipher implements.
- getAlgorithmName in interface BlockCipher
- the name of the algorithm the cipher implements.
getBlockSize
public int getBlockSize()
Return the block size for this cipher (in bytes).
- getBlockSize in interface BlockCipher
- the block size for this cipher in bytes.
init
public void init(boolean encrypting,
CipherParameters params)
initialise a Blowfish cipher.
- init in interface BlockCipher
encrypting
- whether or not we are for encryption.params
- the parameters required to set up the cipher.
processBlock
public final int processBlock(byte[] in,
int inOff,
byte[] out,
int outOff)
Process one block of input from the array in and write it to
the out array.
- processBlock in interface BlockCipher
in
- the array containing the input data.inOff
- offset into the in array the data starts at.out
- the array the output data will be copied into.outOff
- the offset into the out array the output will start at.
- the number of bytes processed and produced.
reset
public 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).
- reset in interface BlockCipher