1/* 2 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package sun.security.util; 27 28import java.security.AlgorithmParameters; 29import java.security.CryptoPrimitive; 30import java.security.Key; 31import java.util.Set; 32import static sun.security.util.AbstractAlgorithmConstraints.getAlgorithms; 33 34/** 35 * Algorithm constraints for legacy algorithms. 36 */ 37public class LegacyAlgorithmConstraints extends AbstractAlgorithmConstraints { 38 39 // the known security property, jdk.tls.legacyAlgorithms 40 public static final String PROPERTY_TLS_LEGACY_ALGS = 41 "jdk.tls.legacyAlgorithms"; 42 43 private final String[] legacyAlgorithms; 44 45 public LegacyAlgorithmConstraints(String propertyName, 46 AlgorithmDecomposer decomposer) { 47 super(decomposer); 48 legacyAlgorithms = getAlgorithms(propertyName); 49 } 50 51 @Override 52 public final boolean permits(Set<CryptoPrimitive> primitives, 53 String algorithm, AlgorithmParameters parameters) { 54 return checkAlgorithm(legacyAlgorithms, algorithm, decomposer); 55 } 56 57 @Override 58 public final boolean permits(Set<CryptoPrimitive> primitives, Key key) { 59 return true; 60 } 61 62 @Override 63 public final boolean permits(Set<CryptoPrimitive> primitives, 64 String algorithm, Key key, AlgorithmParameters parameters) { 65 return checkAlgorithm(legacyAlgorithms, algorithm, decomposer); 66 } 67 68} 69