portlets.compoze.groupware.util
Class Encryptor

java.lang.Object
  portlets.compoze.groupware.util.Encryptor

All Implemented Interfaces:

java.io.Serializable

public class Encryptor

extends java.lang.Object

implements java.io.Serializable

This is a utility class for DES3 encryption and decryption.

See Also:

Serialized Form

Method Summary

java.lang.String	decrypt(java.lang.String sValue) Decrypts the given String
java.lang.String	encrypt(java.lang.String sValue) Encrypts the gives String.
java.lang.String	generateKeyString() Randomly generates a new key.
static Encryptor	i() Gets an instance of the encryptor.
void	setKey(java.lang.String sKey) Sets the encryption key.

Methods inherited from class java.lang.Object

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

Method Detail

i

public static Encryptor i()
                   throws GroupwareException

Gets an instance of the encryptor.

Returns:

an instance of the Encryptor

Throws:

GroupwareException - error occured while retrieving encryption key

setKey

public void setKey(java.lang.String sKey)
            throws java.security.InvalidKeyException

Sets the encryption key.

Parameters:

sKey - the encryption key

Throws:

java.security.InvalidKeyException

encrypt

public java.lang.String encrypt(java.lang.String sValue)
                         throws java.security.spec.InvalidKeySpecException,
                                java.security.NoSuchAlgorithmException,
                                javax.crypto.NoSuchPaddingException,
                                java.security.InvalidKeyException,
                                java.security.InvalidAlgorithmParameterException,
                                java.lang.IllegalStateException,
                                javax.crypto.IllegalBlockSizeException,
                                javax.crypto.BadPaddingException

Encrypts the gives String.

Parameters:

sValue - the String to encrypt

Returns:

the encrypted String

Throws:

java.security.spec.InvalidKeySpecException - consolidate to one exception

java.security.NoSuchAlgorithmException - consolidate to one exception

javax.crypto.NoSuchPaddingException - consolidate to one exception

java.security.InvalidKeyException - consolidate to one exception

java.security.InvalidAlgorithmParameterException - consolidate to one exception

java.lang.IllegalStateException - consolidate to one exception

javax.crypto.IllegalBlockSizeException - consolidate to one exception

javax.crypto.BadPaddingException - consolidate to one exception

decrypt

public java.lang.String decrypt(java.lang.String sValue)
                         throws java.security.spec.InvalidKeySpecException,
                                java.security.NoSuchAlgorithmException,
                                javax.crypto.NoSuchPaddingException,
                                java.security.InvalidKeyException,
                                java.security.InvalidAlgorithmParameterException,
                                java.lang.IllegalStateException,
                                javax.crypto.IllegalBlockSizeException,
                                javax.crypto.BadPaddingException

Decrypts the given String

Parameters:

sValue - the String ot decrypt

Returns:

the decrypted String

Throws:

java.security.spec.InvalidKeySpecException - consolidate to one exception

java.security.NoSuchAlgorithmException - consolidate to one exception

javax.crypto.NoSuchPaddingException - consolidate to one exception

java.security.InvalidKeyException - consolidate to one exception

java.security.InvalidAlgorithmParameterException - consolidate to one exception

java.lang.IllegalStateException - consolidate to one exception

javax.crypto.IllegalBlockSizeException - consolidate to one exception

javax.crypto.BadPaddingException - consolidate to one exception

generateKeyString

public java.lang.String generateKeyString()
                                   throws java.security.NoSuchAlgorithmException

Randomly generates a new key.

Returns:

the Base64 encoded key

Throws:

java.security.NoSuchAlgorithmException - if key generation fails