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 Object

A Hashed Adapter encapsulating ASN.1 cipher text engines to perform encrypt() and decrypt() operations.

Author:

Apache Directory Project

Constructor Summary

CipherTextHandler()

Method Summary

byte[]	decrypt(EncryptionKey key, EncryptedData data, KeyUsage usage) Decrypt a block of data.
EncryptedData	encrypt(EncryptionKey key, byte[] plainText, KeyUsage usage)
EncryptedData	seal(EncryptionKey key, org.apache.directory.shared.asn1.AbstractAsn1Object message, KeyUsage usage) Performs an encode and an encrypt.

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,
                          org.apache.directory.shared.asn1.AbstractAsn1Object message,
                          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

encrypt

public EncryptedData encrypt(EncryptionKey key,
                             byte[] plainText,
                             KeyUsage usage)
                      throws KerberosException

Throws:

KerberosException

decrypt

public byte[] decrypt(EncryptionKey key,
                      EncryptedData data,
                      KeyUsage usage)
               throws KerberosException

Decrypt a block of data.

Parameters:

key - The key used to decrypt the data

data - The data to decrypt

usage - The key usage number

Returns:

The decrypted data as a byte[]

Throws:

KerberosException - If the decoding failed