org.apache.directory.server.kerberos.shared.crypto.encryption
Class CipherTextHandler

java.lang.Object
  org.apache.directory.server.kerberos.shared.crypto.encryption.CipherTextHandler

public class CipherTextHandler
extends java.lang.Object

A Hashed Adapter encapsulating ASN.1 encoders and decoders and cipher text engines to perform seal() and unseal() operations. A seal() operation performs an encode and an encrypt, while an unseal() operation performs a decrypt and a decode.

Version:

$Rev: 548929 $, $Date: 2007-06-20 00:28:46 -0400 (Wed, 20 Jun 2007) $

Author:

Apache Directory Project

Constructor Summary

CipherTextHandler()

Method Summary

EncryptedData	seal(EncryptionKey key, Encodable encodable, KeyUsage usage) Performs an encode and an encrypt.
Encodable	unseal(java.lang.Class hint, EncryptionKey key, EncryptedData data, KeyUsage usage) Perform a decrypt and a decode.

Methods inherited from class java.lang.Object

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

Constructor Detail

CipherTextHandler

public CipherTextHandler()

Method Detail

seal

public EncryptedData seal(EncryptionKey key,
                          Encodable encodable,
                          KeyUsage usage)
                   throws KerberosException

Performs an encode and an encrypt.

Parameters:

key - The key to use for encrypting.

encodable - The Kerberos object to encode.

usage - The key usage.

Returns:

The Kerberos EncryptedData.

Throws:

KerberosException

unseal

public Encodable unseal(java.lang.Class hint,
                        EncryptionKey key,
                        EncryptedData data,
                        KeyUsage usage)
                 throws KerberosException

Perform a decrypt and a decode.

Parameters:

hint - The class the encrypted data is expected to contain.

key - The key to use for decryption.

data - The data to decrypt.

usage - The key usage.

Returns:

The Kerberos object resulting from a successful decrypt and decode.

Throws:

KerberosException