/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package javax.crypto; import java.security.Key; /** * A cryptographic secret (symmetric) key. * <p> * This interface is a <i>marker interface</i> to group secret keys and to * provide type safety for. * <p> * Implementations of this interface have to overwrite the * {@link Object#equals(Object) equals} and {@link Object#hashCode() hashCode} * from {@link java.lang.Object} so comparison is done using the actual key data * and not the object reference. */ public interface SecretKey extends Key { /** * The serialization version identifier. * * @serial */ public static final long serialVersionUID = -4795878709595146952L; }