/*

 * Copyright (c) 2016, 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,

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 *

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package sun.security.util;

import java.security.InvalidKeyException;

import javax.crypto.SecretKey;

/**

 * Special interface for additional MessageDigestSpi method(s).

 */

public interface MessageDigestSpi2 {

    /**

     * Updates the digest using the specified key.

     * This is used for SSL 3.0 only, we may deprecate and remove the support

     * of this in the future

     *

     * @param key  the key whose value is to be digested.

     */

    void engineUpdate(SecretKey key) throws InvalidKeyException;

}