com.maverick.ssh.components.standalone
Class TripleDesCbc

java.lang.Object
  com.maverick.ssh.components.SshCipher
      com.maverick.ssh.components.standalone.CbcBlockCipher
          com.maverick.ssh.components.standalone.TripleDesCbc

public class TripleDesCbc

extends com.maverick.ssh.components.standalone.CbcBlockCipher

3DES cipher for SSH2.

Author:

Lee David Painter

Field Summary

static java.lang.String

TRIPLEDES_CBC

Fields inherited from class com.maverick.ssh.components.SshCipher

DECRYPT_MODE, ENCRYPT_MODE

Constructor Summary

TripleDesCbc()
Contstruct the uninitialized cipher.

Method Summary

java.lang.String	getAlgorithm() Get the algorithm name
int	getBlockSize() Get the block size of the cipher
void	init(int mode, byte[] iv, byte[] keydata) Initialize the CBC block cipher.
void	transform(byte[] in, int start, byte[] output, int offset, int length) Transform the data

Methods inherited from class com.maverick.ssh.components.SshCipher

transform

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

TRIPLEDES_CBC

public static final java.lang.String TRIPLEDES_CBC

See Also:

Constant Field Values

Constructor Detail

TripleDesCbc

public TripleDesCbc()

Contstruct the uninitialized cipher.

Method Detail

getAlgorithm

public java.lang.String getAlgorithm()

Get the algorithm name

Overrides:

getAlgorithm in class SshCipher

Returns:

"3des-cbc"

init

public void init(int mode,
                 byte[] iv,
                 byte[] keydata)

Initialize the CBC block cipher.

Specified by:

init in class SshCipher

Parameters:

mode - the mode to operate in

iv - the initialization vector

keydata - the key

Throws:

java.io.IOException

getBlockSize

public int getBlockSize()

Get the block size of the cipher

Specified by:

getBlockSize in class SshCipher

Returns:

the block size in bytes

transform

public void transform(byte[] in,
                      int start,
                      byte[] output,
                      int offset,
                      int length)
               throws java.io.IOException

Transform the data

Specified by:

transform in class SshCipher

Parameters:

in - input byte[]

start -

output - byte[]

offset -

length -

Throws:

java.io.IOException