SignatureGetAlgorithm.java revision 8705:f731d096530f
1/* 2 * Copyright (c) 2013, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* 25 * Portions Copyright (c) 2013 IBM Corporation 26 */ 27 28/* 29 * @test 30 * @bug 8014620 31 * @summary Signature.getAlgorithm return null in special case 32 * @run main/othervm SignatureGetAlgorithm 33 * @author youdwei 34 */ 35import java.security.*; 36 37public class SignatureGetAlgorithm { 38 39 public static void main(String[] args) throws Exception { 40 Provider testProvider = new TestProvider(); 41 Security.addProvider(testProvider); 42 Signature sig = Signature.getInstance("MySignatureAlg"); 43 String algorithm = sig.getAlgorithm(); 44 System.out.println("Algorithm Name: " + algorithm); 45 if (algorithm == null) { 46 throw new Exception("algorithm name should be 'MySignatureAlg'"); 47 } 48 } 49 50 public static class TestProvider extends Provider { 51 TestProvider() { 52 super("testSignatureGetAlgorithm", 1.0, "test Signatures"); 53 put("Signature.MySignatureAlg", 54 "SignatureGetAlgorithm$MySignatureAlg"); 55 } 56 } 57 58 public static class MySignatureAlg extends Signature { 59 60 public MySignatureAlg() { 61 super(null); 62 } 63 64 MySignatureAlg(String s) { 65 super(s); 66 } 67 68 @Override 69 protected void engineInitVerify(PublicKey publicKey) 70 throws InvalidKeyException { 71 } 72 73 @Override 74 protected void engineInitSign(PrivateKey privateKey) 75 throws InvalidKeyException { 76 } 77 78 @Override 79 protected void engineUpdate(byte b) throws SignatureException { 80 } 81 82 @Override 83 protected void engineUpdate(byte[] b, int off, int len) 84 throws SignatureException { 85 } 86 87 @Override 88 protected byte[] engineSign() 89 throws SignatureException { 90 return new byte[0]; 91 } 92 93 @Override 94 protected boolean engineVerify(byte[] sigBytes) 95 throws SignatureException { 96 return false; 97 } 98 99 @Override 100 @Deprecated 101 protected void engineSetParameter(String param, Object value) 102 throws InvalidParameterException { 103 } 104 105 @Override 106 @Deprecated 107 protected Object engineGetParameter(String param) 108 throws InvalidParameterException { 109 return null; 110 } 111 } 112} 113