/*
 * JBoss, Home of Professional Open Source.
 * See the COPYRIGHT.txt file distributed with this work for information
 * regarding copyright ownership.  Some portions may be licensed
 * to Red Hat, Inc. under one or more contributor license agreements.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */

package org.teiid.core.crypto;


/**
 * Interface defining a utility that can perform both encryption and decryption.
 */
public interface Cryptor {
	
    /**
     * Encrypt the cleartext in byte array format.
     * @param cleartext The text to be encrypted, in byte form
     * @param The encrypted ciphertext, in byte form
     */
    byte[] encrypt( byte[] cleartext ) throws CryptoException;

    /**
     * Encrypt the cleartext
     * @param cleartext The text to be encrypted
     * @param The encrypted ciphertext
     */
    String encrypt( String cleartext ) throws CryptoException;
    
    Object sealObject(Object object) throws CryptoException;
    
    /**
     * Decrypt the ciphertext in byte array format to yield the original
     * cleartext.
     * @param ciphertext The text to be encrypted, in byte form
     * @param The decrypted cleartext, in byte form
     */
    byte[] decrypt( byte[] ciphertext ) throws CryptoException;

    /**
     * Decrypt the ciphertext to yield the original
     * cleartext.
     * @param ciphertext The text to be encrypted
     * @param The decrypted cleartext
     */
    String decrypt( String ciphertext ) throws CryptoException;
    
    Object unsealObject(Object object) throws CryptoException;
    
}