org.koala.koalautil
Class Encryption

java.lang.Object
  |
  +--org.koala.koalautil.Encryption

public class Encryption

extends java.lang.Object

This class uses the api defined in JSE to encrypt/decrypt data. Currently it uses the Cryptix32 provider with 3DES

Constructor Summary

Encryption()

Method Summary

static java.lang.String	decryptBytes(byte[] cipherTxt) decrypts an array of bytes
static java.lang.String	decryptBytes(byte[] cipherTxt, java.lang.String algorithm, java.lang.String key) decrypts a chunk of data
static java.lang.String	desencriptarString(java.lang.String txt)
static java.lang.String	desencriptarString(java.lang.String txt, java.lang.String algorithm, java.lang.String key)
static byte[]	encriptarABytes(java.lang.String txt)
static byte[]	encriptarABytes(java.lang.String txt, java.lang.String algorithm, java.lang.String key) encrypts a message
static java.lang.String	encriptarAString(java.lang.String txt)
static java.lang.String	encriptarAString(java.lang.String txt, java.lang.String algorithm, java.lang.String key)
static java.lang.String	hashString(java.lang.String txt)

Methods inherited from class java.lang.Object

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

Constructor Detail

Encryption

public Encryption()

Method Detail

decryptBytes

public static java.lang.String decryptBytes(byte[] cipherTxt)
                                     throws ChainedException

decrypts an array of bytes

Parameters:

cipherTxt -

Returns:

Throws:

ChainedException

decryptBytes

public static java.lang.String decryptBytes(byte[] cipherTxt,
                                            java.lang.String algorithm,
                                            java.lang.String key)
                                     throws ChainedException

decrypts a chunk of data

Parameters:

algorithm - the encryption algorythm to use

key - the encryption key

cipherTxt - the cyphertext

Returns:

the plaintext

Throws:

ChainedException - unspecified

encriptarABytes

public static byte[] encriptarABytes(java.lang.String txt)
                              throws ChainedException

Parameters:

txt -

Returns:

Throws:

ChainedException

encriptarABytes

public static byte[] encriptarABytes(java.lang.String txt,
                                     java.lang.String algorithm,
                                     java.lang.String key)
                              throws ChainedException

encrypts a message

Parameters:

algorithm - the encryption algorithm to use

key - the encryption's key

txt - plaintext

Returns:

cyphertext

Throws:

ChainedException - unspecified

encriptarAString

public static java.lang.String encriptarAString(java.lang.String txt)
                                         throws ChainedException

Parameters:

txt -

Returns:

Throws:

ChainedException

encriptarAString

public static java.lang.String encriptarAString(java.lang.String txt,
                                                java.lang.String algorithm,
                                                java.lang.String key)
                                         throws ChainedException

Parameters:

txt -

algorithm -

key -

Returns:

Throws:

ChainedException

desencriptarString

public static java.lang.String desencriptarString(java.lang.String txt)
                                           throws ChainedException

Parameters:

txt -

Returns:

Throws:

ChainedException

desencriptarString

public static java.lang.String desencriptarString(java.lang.String txt,
                                                  java.lang.String algorithm,
                                                  java.lang.String key)
                                           throws ChainedException

Parameters:

txt -

algorithm -

key -

Returns:

Throws:

ChainedException

hashString

public static java.lang.String hashString(java.lang.String txt)
                                   throws ChainedException

Parameters:

txt -

Returns:

Throws:

ChainedException