org.kuali.rice.core.impl.encryption
Class DemonstrationGradeEncryptionServiceImpl

java.lang.Object
  org.kuali.rice.core.impl.encryption.DemonstrationGradeEncryptionServiceImpl

All Implemented Interfaces:

EncryptionService

public class DemonstrationGradeEncryptionServiceImpl
extends Object
implements EncryptionService

Implementation of encryption service for demonstration.

Author:

Kuali Rice Team (rice.collab@kuali.org)

Field Summary

static String	ALGORITHM
private static String	CHARSET
private SecretKey	desKey
static String	HASH_ALGORITHM
private boolean	isEnabled

Fields inherited from interface org.kuali.rice.core.api.encryption.EncryptionService

ENCRYPTION_POST_PREFIX, HASH_POST_PREFIX

Constructor Summary

DemonstrationGradeEncryptionServiceImpl()

Method Summary

protected void	checkEnabled() Performs a check to see if the encryption service is enabled.
String	decrypt(String ciphertext) Decrypts a value
byte[]	decryptBytes(byte[] ciphertext) Decrypts a value
String	encrypt(Object valueToHide) Encrypts a value
byte[]	encryptBytes(byte[] valueToHide) Encrypts a value
static String	generateEncodedKey() This method generates keys.
String	hash(Object valueToHide) Hash the value by converting to a string, running the hash algorithm, and then base64'ng the results.
boolean	isEnabled() Returns true if encryption is enabled within KEW, false otherwise.
void	setSecretKey(String secretKey) Sets the secretKey attribute value.
private SecretKey	unwrapEncodedKey(String key)

Methods inherited from class java.lang.Object

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

Field Detail

ALGORITHM

public static final String ALGORITHM

See Also:

Constant Field Values

HASH_ALGORITHM

public static final String HASH_ALGORITHM

See Also:

Constant Field Values

CHARSET

private static final String CHARSET

See Also:

Constant Field Values

desKey

private transient SecretKey desKey

isEnabled

private boolean isEnabled

Constructor Detail

DemonstrationGradeEncryptionServiceImpl

public DemonstrationGradeEncryptionServiceImpl()
                                        throws Exception

Throws:

Exception

Method Detail

isEnabled

public boolean isEnabled()

Description copied from interface: EncryptionService

Returns true if encryption is enabled within KEW, false otherwise.

Specified by:

isEnabled in interface EncryptionService

encrypt

public String encrypt(Object valueToHide)
               throws GeneralSecurityException

Description copied from interface: EncryptionService

Encrypts a value

Specified by:

encrypt in interface EncryptionService

Parameters:

valueToHide - - original value

Returns:

encrypted value

Throws:

GeneralSecurityException

decrypt

public String decrypt(String ciphertext)
               throws GeneralSecurityException

Description copied from interface: EncryptionService

Decrypts a value

Specified by:

decrypt in interface EncryptionService

Parameters:

ciphertext - - encrypted value

Returns:

decrypted value

Throws:

GeneralSecurityException

encryptBytes

public byte[] encryptBytes(byte[] valueToHide)
                    throws GeneralSecurityException

Description copied from interface: EncryptionService

Encrypts a value

Specified by:

encryptBytes in interface EncryptionService

Parameters:

valueToHide - - original value

Returns:

encrypted value

Throws:

GeneralSecurityException

decryptBytes

public byte[] decryptBytes(byte[] ciphertext)
                    throws GeneralSecurityException

Description copied from interface: EncryptionService

Decrypts a value

Specified by:

decryptBytes in interface EncryptionService

Parameters:

ciphertext - - encrypted value

Returns:

decrypted value

Throws:

GeneralSecurityException

generateEncodedKey

public static String generateEncodedKey()
                                 throws Exception

This method generates keys. This method is implementation specific and should not be present in any general purpose interface extracted from this class.

Returns:

Throws:

Exception

unwrapEncodedKey

private SecretKey unwrapEncodedKey(String key)
                            throws Exception

Throws:

Exception

setSecretKey

public void setSecretKey(String secretKey)
                  throws Exception

Sets the secretKey attribute value.

Parameters:

secretKey - The secretKey to set.

Throws:

Exception

hash

public String hash(Object valueToHide)
            throws GeneralSecurityException

Hash the value by converting to a string, running the hash algorithm, and then base64'ng the results. Returns a blank string if any problems occur or the input value is null or empty.

Specified by:

hash in interface EncryptionService

Parameters:

valueToHide - - original value

Returns:

encrypted value

Throws:

GeneralSecurityException

See Also:

org.kuali.rice.krad.service.EncryptionService#hash(java.lang.Object)

checkEnabled

protected void checkEnabled()

Performs a check to see if the encryption service is enabled. If it is not then an IllegalStateException will be thrown.