com.metamatrix.common.util.crypto
Class PasswordChangeUtility

java.lang.Object
  com.metamatrix.common.util.crypto.PasswordChangeUtility

public class PasswordChangeUtility
extends java.lang.Object

Utility that allows ciphertext that was encrypted with one key to be decrypted with the old key and re-encrypted with a new key

This utility assumes that the keys have been created and verified to work correctly.

Field Summary

protected boolean	initialized Initailization state.
protected Cryptor	newCryptor The Cryptor to use for encrypting the new passwords.
protected Cryptor	oldCryptor The Cryptor to use for decrypting the old passwords.

Constructor Summary

PasswordChangeUtility(java.lang.String oldkeyFileName, java.lang.String newkeyFileName)
Construct a PasswordChangeUtility with information for two different keys.

Method Summary

void	init() Initialize this factory, bound to a specific key and key entry in that store.
java.lang.String	newDecrypt(java.lang.String ciphertext) Use new Cryptor to decrypt a char[].
java.util.Properties	newDecrypt(java.lang.String match, java.util.Properties props) Use new Cryptor to decrypt properties.
java.lang.String	newEncrypt(java.lang.String cleartext) Use new Cryptor to encrypt a char[].
java.util.Properties	newEncrypt(java.lang.String match, java.util.Properties props) Use new Cryptor to encrypt properties.
java.lang.String	oldDecrypt(java.lang.String ciphertext) Use old Cryptor to decrypt a char[].
java.util.Properties	oldDecrypt(java.lang.String match, java.util.Properties props) Use old Cryptor to decrypt properties.
java.lang.String	oldEncrypt(java.lang.String cleartext) Use old Cryptor to encrypt a char[].
java.util.Properties	oldEncrypt(java.lang.String match, java.util.Properties props) Use old Cryptor to encrypt properties.

Methods inherited from class java.lang.Object

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

Field Detail

initialized

protected boolean initialized

Initailization state.

oldCryptor

protected Cryptor oldCryptor

The Cryptor to use for decrypting the old passwords.

newCryptor

protected Cryptor newCryptor

The Cryptor to use for encrypting the new passwords.

Constructor Detail

PasswordChangeUtility

public PasswordChangeUtility(java.lang.String oldkeyFileName,
                             java.lang.String newkeyFileName)

Construct a PasswordChangeUtility with information for two different keys.

Parameters:

oldkeyFileName - The absolute path to the key with which you would like to decrypt the old passwords.

newkeyFileName - The absolute path to the key with which you would like to encrypt the new passwords.

Throws:

IllegaArgumentException - if any arguments are null or empty.

Method Detail

init

public void init()
          throws CryptoException

Initialize this factory, bound to a specific key and key entry in that store.

Throws:

CryptoException

oldEncrypt

public java.lang.String oldEncrypt(java.lang.String cleartext)
                            throws CryptoException

Use old Cryptor to encrypt a char[].

Parameters:

cleartext - The cleartext that you want encrypted with the old Cryptor.

Returns:

The encrypted ciphertext chars.

Throws:

CryptoException - If an error occurs durring initialization of the Cryptor or during encryption.

oldEncrypt

public java.util.Properties oldEncrypt(java.lang.String match,
                                       java.util.Properties props)
                                throws CryptoException

Use old Cryptor to encrypt properties. Encrypts any properties that end with match

Parameters:

match -

props -

Returns:

Encrypted properties

Throws:

CryptoException

Since:

4.3

oldDecrypt

public java.lang.String oldDecrypt(java.lang.String ciphertext)
                            throws CryptoException

Use old Cryptor to decrypt a char[].

Parameters:

ciphertext - The ciphertext that you want decrypted with the old Cryptor.

Returns:

The decrypted cleartext chars.

Throws:

CryptoException - If an error occurs durring initialization of the Cryptor or during decryption.

oldDecrypt

public java.util.Properties oldDecrypt(java.lang.String match,
                                       java.util.Properties props)
                                throws CryptoException

Use old Cryptor to decrypt properties. Decrypts any properties that end with match

Parameters:

match -

props -

Returns:

decrypted properties

Throws:

CryptoException

Since:

4.3

newEncrypt

public java.lang.String newEncrypt(java.lang.String cleartext)
                            throws CryptoException

Use new Cryptor to encrypt a char[].

Parameters:

cleartext - The cleartext that you want encrypted with the new Cryptor.

Returns:

The encrypted ciphertext chars.

Throws:

CryptoException - If an error occurs durring initialization of the Cryptor or during encryption.

newEncrypt

public java.util.Properties newEncrypt(java.lang.String match,
                                       java.util.Properties props)
                                throws CryptoException

Use new Cryptor to encrypt properties. Encrypts any properties that end with match

Parameters:

match -

props -

Returns:

encrypted properties

Throws:

CryptoException

Since:

4.3

newDecrypt

public java.lang.String newDecrypt(java.lang.String ciphertext)
                            throws CryptoException

Use new Cryptor to decrypt a char[].

Parameters:

ciphertext - The ciphertext that you want decrypted with the new Cryptor.

Returns:

The decrypted cleartext chars.

Throws:

CryptoException - If an error occurs durring initialization of the Cryptor or during decryption.

newDecrypt

public java.util.Properties newDecrypt(java.lang.String match,
                                       java.util.Properties props)
                                throws CryptoException

Use new Cryptor to decrypt properties. Decrypts any properties that end with match

Parameters:

match -

props -

Returns:

decrypted properties

Throws:

CryptoException

Since:

4.3