com.jcorporate.expresso.core.security
Class AbstractStringEncryption

java.lang.Object
  com.jcorporate.expresso.core.security.AbstractStringEncryption

Direct Known Subclasses:

StringEncryption, StringEncryption

public abstract class AbstractStringEncryption

extends Object

This class represents a StringEncryption Interface

Version:

$Revision: 1.11 $ $Date: 2003/06/03 06:12:15 $

Author:

Michael Rimov

Field Summary

protected byte[]

passKey

Constructor Summary

AbstractStringEncryption()
Default Constructor

Method Summary

abstract byte[]	decrypt(byte[] inputData) Same as decryptString, but only deals in byte arrays.
String	decryptString(byte[] inputData) Decode a string.
void	destroy() Implemented by lower levels to destroy the cryptographic managers.
abstract byte[]	encrypt(byte[] inputData) Same as encryptString, but only deals in byte arrays.
byte[]	encryptString(String inputData) Encode a string.
CryptoManager	getCryptoManager()
void	init()
void	preparePassKey() Basic implementation puts a hash of the config manager's key into the passKey variable.
void	setCryptoManager(CryptoManager cryptoManager)

Methods inherited from class java.lang.Object

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

Field Detail

passKey

protected byte[] passKey

Constructor Detail

AbstractStringEncryption

public AbstractStringEncryption()

Default Constructor

Throws:

ChainedException

Method Detail

init

public void init()
          throws ChainedException

Throws:

ChainedException

destroy

public void destroy()

Implemented by lower levels to destroy the cryptographic managers.

decrypt

public abstract byte[] decrypt(byte[] inputData)
                        throws ChainedException

Same as decryptString, but only deals in byte arrays. This method must be implemented by descendants of this class.

Parameters:

inputData - A byte aray of data to decrypt

Returns:

A byte array of decrypted data

Throws:

ChainedException - If there's an error decrypting the data

decryptString

public String decryptString(byte[] inputData)
                     throws IllegalStateException

Decode a string. Derived classes determine what strength/type of encoding is done.

Parameters:

inputData - A greater than zero length byte array. that was encoded with the encryptString() routine.

Returns:

the decrypted data in a String format.

Throws:

IllegalStateException

encrypt

public abstract byte[] encrypt(byte[] inputData)
                        throws ChainedException

Same as encryptString, but only deals in byte arrays. This must be implemented by the descendants of this class.

Parameters:

inputData - A byte array to encrypt

Returns:

An encrypted byte array.

Throws:

ChainedException

encryptString

public byte[] encryptString(String inputData)
                     throws IllegalStateException,
                            IllegalArgumentException,
                            ChainedException

Encode a string. Derived classes determine what strength/type of encoding is done.

Parameters:

inputData - a non-null string.

Returns:

a byte array that is the inputData encoded.

Throws:

IllegalStateException

IllegalArgumentException

ChainedException

preparePassKey

public void preparePassKey()
                    throws ChainedException

Basic implementation puts a hash of the config manager's key into the passKey variable.

Throws:

ChainedException

setCryptoManager

public void setCryptoManager(CryptoManager cryptoManager)

getCryptoManager

public CryptoManager getCryptoManager()