com.maverick.ssh.components.jce
Class AbstractJCECipher

java.lang.Object
  com.maverick.ssh.components.SshCipher
      com.maverick.ssh.components.jce.AbstractJCECipher

Direct Known Subclasses:

AES128Cbc, AES128Ctr, AES192Cbc, AES192Ctr, AES256Cbc, AES256Ctr, ArcFour, ArcFour128, ArcFour256, BlowfishCbc, Ssh1Des, TripleDesCbc, TripleDesCtr

public class AbstractJCECipher
extends SshCipher

An abstract base class for defining SSH ciphers which use a JCE provider instead of the internal Maverick Crypto provider.

Author:

Lee David Painter

Field Summary

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

DECRYPT_MODE, ENCRYPT_MODE

Constructor Summary

AbstractJCECipher(String spec, String keyspec, int keylength, String algorithm)

Method Summary

int	getBlockSize()
String	getProvider()
void	init(int mode, byte[] iv, byte[] keydata)
void	transform(byte[] buf, int start, byte[] output, int off, int len)

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

getAlgorithm, transform

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractJCECipher

public AbstractJCECipher(String spec,
                         String keyspec,
                         int keylength,
                         String algorithm)
                  throws IOException

Parameters:

spec - the value passed into Cipher.getInstance() that specifies the specification of the cipher; for example "Blowfish/CBC/NoPadding"

keyspec - the value passed into the constructor of SecretKeySpec.

keylength - int the length in bytes of the key

Throws:

IOException

Method Detail

transform

public void transform(byte[] buf,
                      int start,
                      byte[] output,
                      int off,
                      int len)
               throws IOException

Specified by:

transform in class SshCipher

Throws:

IOException

getProvider

public String getProvider()

init

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

Specified by:

init in class SshCipher

Throws:

IOException

getBlockSize

public int getBlockSize()

Specified by:

getBlockSize in class SshCipher