atg.projects.store.crypto
Class DESEncryptor

java.lang.Object
  atg.projects.store.crypto.AbstractEncryptor
      atg.projects.store.crypto.DESEncryptor

All Implemented Interfaces:

Encryptor, java.io.Serializable

public class DESEncryptor
extends AbstractEncryptor

A simple class for performing encryption/decryption operations using the javax.crypto package.

See Also:

Serialized Form

Field Summary

protected static java.lang.String	ALGORITHM Crypto algorithm name.
static java.lang.String	CLASS_VERSION Class version string
protected static java.lang.String	KEY 24 byte key string.

Constructor Summary

DESEncryptor()
Default constructor.

Method Summary

protected byte[]	decodeToByteArray(java.lang.String pValue) Decode to byte array.
protected void	doAcceptDecryptKey(byte[] pValue) This is two way encryption, so encrypt/decrypt keys are the same.
protected void	doAcceptEncryptKey(byte[] pValue) This is two way encryption, so encrypt/decrypt keys are the same.
protected byte[]	doDecrypt(byte[] pValue) Performs decription of array of bytes.
protected byte[]	doEncrypt(byte[] pValue) Performs encryption of array of bytes.
protected void	doInit() Initialize DESEncrytor.
protected java.lang.String	encodeToString(byte[] pValue) Once encrypted, string data may no longer be a string because the encrypted data is binary and may contain null characters, thus it may need to be encoded using a encoder such as Base64, UUEncode (ASCII only) or UCEncode(ASCII independent).

Methods inherited from class atg.projects.store.crypto.AbstractEncryptor

acceptDecryptKey, acceptEncryptKey, decrypt, decrypt, encrypt, encrypt, init, postDecrypt, postDecrypt, postEncrypt, postEncrypt, preDecrypt, preDecrypt, preEncrypt, preEncrypt

Methods inherited from class java.lang.Object

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

Field Detail

CLASS_VERSION

public static java.lang.String CLASS_VERSION

Class version string

ALGORITHM

protected static final java.lang.String ALGORITHM

Crypto algorithm name.

See Also:

Constant Field Values

KEY

protected static final java.lang.String KEY

24 byte key string.

See Also:

Constant Field Values

Constructor Detail

DESEncryptor

public DESEncryptor()

Default constructor.

Method Detail

doAcceptEncryptKey

protected final void doAcceptEncryptKey(byte[] pValue)
                                 throws EncryptorException

This is two way encryption, so encrypt/decrypt keys are the same.

Specified by:

doAcceptEncryptKey in class AbstractEncryptor

Parameters:

pValue - - key

Throws:

EncryptorException - if encryption error occurs

doAcceptDecryptKey

protected final void doAcceptDecryptKey(byte[] pValue)
                                 throws EncryptorException

This is two way encryption, so encrypt/decrypt keys are the same.

Specified by:

doAcceptDecryptKey in class AbstractEncryptor

Parameters:

pValue - - key

Throws:

EncryptorException - if encryption error occurs

doInit

protected final void doInit()
                     throws EncryptorException

Initialize DESEncrytor.

Specified by:

doInit in class AbstractEncryptor

Throws:

EncryptorException - This exception indicates that a severe error occured while performing a cryptograpy operation.

doEncrypt

protected final byte[] doEncrypt(byte[] pValue)
                          throws EncryptorException

Performs encryption of array of bytes.

Specified by:

doEncrypt in class AbstractEncryptor

Parameters:

pValue - array of bytes to encrypt

Returns:

encrypted array of bytes

Throws:

EncryptorException - This exception indicates that a severe error occured while performing a cryptograpy operation.

doDecrypt

protected final byte[] doDecrypt(byte[] pValue)
                          throws EncryptorException

Performs decription of array of bytes.

Specified by:

doDecrypt in class AbstractEncryptor

Parameters:

pValue - decrypt array of bytes

Returns:

decrypted array of bytes

Throws:

EncryptorException - This exception indicates that a severe error occured while performing a cryptograpy operation.

encodeToString

protected java.lang.String encodeToString(byte[] pValue)
                                   throws EncryptorException

Once encrypted, string data may no longer be a string because the encrypted data is binary and may contain null characters, thus it may need to be encoded using a encoder such as Base64, UUEncode (ASCII only) or UCEncode(ASCII independent).

Overrides:

encodeToString in class AbstractEncryptor

Parameters:

pValue - Value to encode

Returns:

Encoded data

Throws:

EncryptorException - This exception indicates that an error occured while performing a cryptograpy operation.

decodeToByteArray

protected byte[] decodeToByteArray(java.lang.String pValue)
                            throws EncryptorException

Decode to byte array.

Overrides:

decodeToByteArray in class AbstractEncryptor

Parameters:

pValue - - value to decode

Returns:

byte array

Throws:

EncryptorException - if encryption error occurs