gov.va.med.crypto

Class KeyEncrypter

Object

VistaLinkEncrypter

KeyEncrypter

Direct Known Subclasses:

DESKeyEncrypter, PassPhraseEncrypter

public class KeyEncrypter
extends VistaLinkEncrypter

Provides basic implementation for a base class of Cipher algorithms, key based. To implement a particular algorithm/encoding, specify the algorithmName, encodingFormat in the overriding class. To implement a different Key and Cipher getting logic, override corresponding protected methods.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	ks

Fields inherited from class VistaLinkEncrypter

algorithmName, encodingFormat, key, logger

Constructor Summary

Constructors

Constructor and Description
KeyEncrypter()

Method Summary

Modifier and Type	Method and Description
String	decrypt(String s) Decrypts a string using the specified encoding algorithm and encoding.
String	encrypt(String s) Encrypts a string using the specified encoding algorithm and encoding.
protected SecretKey	generateKey()
protected Cipher	getCipher(int opmode)
SecretKey	getKey() Returns a Key instance, used for encryption/decryption process
protected KeyGenerator	getKeyGenerator()
protected void	handleException(Exception e, String message)
void	setKey(SecretKey key)

Methods inherited from class Object

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

Field Detail

ks

protected int ks

Constructor Detail

KeyEncrypter

public KeyEncrypter()

Method Detail

generateKey

protected SecretKey generateKey()

getKeyGenerator

protected KeyGenerator getKeyGenerator()
                                throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

handleException

protected void handleException(Exception e,
                               String message)

getCipher

protected Cipher getCipher(int opmode)

encrypt

public String encrypt(String s)

Description copied from class: VistaLinkEncrypter

Encrypts a string using the specified encoding algorithm and encoding.

Specified by:

encrypt in class VistaLinkEncrypter

Parameters:

s - The String to encode.

Returns:

an encrypted and encoded (according to the specified encodingFormat) version of the input string.

decrypt

public String decrypt(String s)

Description copied from class: VistaLinkEncrypter

Decrypts a string using the specified encoding algorithm and encoding.

Specified by:

decrypt in class VistaLinkEncrypter

Parameters:

s - The String to encode.

Returns:

an encrypted and encoded (according to the specified encodingFormat) version of the input string.

getKey

public SecretKey getKey()

Description copied from class: VistaLinkEncrypter

Returns a Key instance, used for encryption/decryption process

Specified by:

getKey in class VistaLinkEncrypter

Returns:

a Key instance.

setKey

public void setKey(SecretKey key)