org.bouncycastle.crypto.engines
Class DESedeEngine
- BlockCipher
public class DESedeEngine
a class that provides a basic DESede (or Triple DES) engine.
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 DESede 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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BLOCK_SIZE
protected static final int BLOCK_SIZE
- 8
DESedeEngine
public DESedeEngine()
standard constructor.
getAlgorithmName
public String getAlgorithmName()
Return the name of the algorithm the cipher implements.
- getAlgorithmName in interface BlockCipher
- getAlgorithmName in interface DESEngine
- 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
- getBlockSize in interface DESEngine
- the block size for this cipher in bytes.
init
public void init(boolean encrypting,
CipherParameters params)
initialise a DESede cipher.
- init in interface BlockCipher
- init in interface DESEngine
encrypting
- whether or not we are for encryption.params
- the parameters required to set up the cipher.
processBlock
public 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
- processBlock in interface DESEngine
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
- reset in interface DESEngine