/*

 * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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 General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

package com.sun.security.sasl.digest;

import javax.security.sasl.SaslException;

/**

  * Interface used for classes implementing integrity checking and privacy

  * for DIGEST-MD5 SASL mechanism implementation.

  *

  * @see <a href="http://www.ietf.org/rfc/rfc2831.txt">RFC 2831</a>

  * - Using Digest Authentication as a SASL Mechanism

  *

  * @author Jonathan Bruce

  */

interface SecurityCtx {

    /**

     * Wrap out-going message and return wrapped message

     *

     * @throws SaslException

     */

    byte[] wrap(byte[] dest, int start, int len)

        throws SaslException;

    /**

     * Unwrap incoming message and return original message

     *

     * @throws SaslException

     */

    byte[] unwrap(byte[] outgoing, int start, int len)

        throws SaslException;

}