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

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 * published by the Free Software Foundation.  Oracle designates this

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 * 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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package sun.security.internal.interfaces;

import javax.crypto.SecretKey;

/**

 * An SSL/TLS master secret key. It is a <code>SecretKey</code> that optionally

 * contains protocol version information that is used to detect version

 * rollback attacks during the SSL/TLS handshake.

 *

 * <p>Implementation of this interface are returned by the

 * <code>generateKey()</code> method of KeyGenerators of the type

 * "TlsMasterSecret".

 *

 * @since   1.6

 * @author  Andreas Sterbenz

 * @deprecated Sun JDK internal use only --- WILL BE REMOVED in a future

 * release.

 */

@Deprecated

public interface TlsMasterSecret extends SecretKey {

    /***

     * @deprecated A {@code serialVersionUID} field in an interface is

     * ineffectual. Do not use; no replacement.

     */

    @Deprecated

    @SuppressWarnings("serial")

    @java.io.Serial

    public static final long serialVersionUID = -461748105810469773L;

    /**

     * Returns the major version number encapsulated in the premaster secret

     * this master secret was derived from, or -1 if it is not available.

     *

     * <p>This information will only usually only be available when RSA

     * was used as the key exchange algorithm.

     *

     * @return the major version number, or -1 if it is not available

     */

    public int getMajorVersion();

    /**

     * Returns the minor version number encapsulated in the premaster secret

     * this master secret was derived from, or -1 if it is not available.

     *

     * <p>This information will only usually only be available when RSA

     * was used as the key exchange algorithm.

     *

     * @return the major version number, or -1 if it is not available

     */

    public int getMinorVersion();

}