com.ibm.commerce.giftcenter.facade.server.helpers

Class GiftListEncryptionHelperImpl

java.lang.Object

com.ibm.commerce.giftcenter.facade.server.helpers.GiftListEncryptionHelperImpl

All Implemented Interfaces:

GiftListEncryptionHelper

public final class GiftListEncryptionHelperImpl
extends java.lang.Object
implements GiftListEncryptionHelper

This helper provides services to encrypt, decrypt and match a given password using the encryption framework provided in WebSphere Commerce.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	COPYRIGHT IBM copy right field.

Fields inherited from interface com.ibm.commerce.giftcenter.facade.server.helpers.GiftListEncryptionHelper

DEFAULT_CHAR_SET, NAME

Constructor Summary

Constructors

Constructor and Description
GiftListEncryptionHelperImpl()

Method Summary

Modifier and Type	Method and Description
java.lang.String	generateSalt() This method generates the salt to be used for creating passwords.
boolean	isMatchingCipherText(byte[] originalPassword, java.lang.String salt, java.lang.String password, boolean matchByOneWayHash) Checks if the original password matches with the encrypted password generated from the password and salt that is provided to the method.
byte[]	performOneWayHashEncryption(java.lang.String password, java.lang.String salt) This method performs one way hash on a given password using the salt provided.
byte[]	performReversibleEncryption(java.lang.String password, java.lang.String salt) Performs reversible encryption on the password.
java.lang.String	reverseEncryptedPassword(byte[] password, java.lang.String salt) Decrypt a given password.

Methods inherited from class java.lang.Object

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

Field Detail

COPYRIGHT

public static final java.lang.String COPYRIGHT

IBM copy right field.

See Also:

Constant Field Values

Constructor Detail

GiftListEncryptionHelperImpl

public GiftListEncryptionHelperImpl()

Method Detail

isMatchingCipherText

public boolean isMatchingCipherText(byte[] originalPassword,
                                    java.lang.String salt,
                                    java.lang.String password,
                                    boolean matchByOneWayHash)
                             throws ECException

Checks if the original password matches with the encrypted password generated from the password and salt that is provided to the method. This method checks if WebSphere Commerce is configured for using one way hashing or reversible encryption based on which the comparison will be made.

Specified by:

isMatchingCipherText in interface GiftListEncryptionHelper

Parameters:

originalPassword - The password that is already encrypted and stored in the GRUSERAUTH table.

salt - The salt to be used for encryption.

password - The plain text to be matched.

matchByOneWayHash - boolean to indicate if one way hash encryption is to be used.

Returns:

true, if the password matches. false, otherwise.

Throws:

ECException

reverseEncryptedPassword

public java.lang.String reverseEncryptedPassword(byte[] password,
                                                 java.lang.String salt)

Decrypt a given password. The caller should know that the password is reversible.

Specified by:

reverseEncryptedPassword in interface GiftListEncryptionHelper

Parameters:

password - the password to be decrypted

salt - The salt to be used while decrypting

Returns:

the decrypted result

generateSalt

public java.lang.String generateSalt()
                              throws ECException

This method generates the salt to be used for creating passwords.

Specified by:

generateSalt in interface GiftListEncryptionHelper

Returns:

String The salt that is generated.

Throws:

ECException

performOneWayHashEncryption

public byte[] performOneWayHashEncryption(java.lang.String password,
                                          java.lang.String salt)
                                   throws ECException

This method performs one way hash on a given password using the salt provided.

Specified by:

performOneWayHashEncryption in interface GiftListEncryptionHelper

Parameters:

password - The plain text password.

salt - The salt to be used for encryption.

Returns:

The byte encrypted password.

Throws:

ECException

performReversibleEncryption

public byte[] performReversibleEncryption(java.lang.String password,
                                          java.lang.String salt)
                                   throws ECException

Performs reversible encryption on the password.

Specified by:

performReversibleEncryption in interface GiftListEncryptionHelper

Parameters:

password - The plain text password to be encrypted

salt - The salt to be used.

Returns:

byte[] Then encrypted password.

Throws:

ECException