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/*
* Copyright (c) 2013, 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.
*
* 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,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* Portions Copyright (c) 2013 IBM Corporation
*/
/*
* @test
* @bug 8014620 8130181
* @summary Signature.getAlgorithm return null in special case
* @run main/othervm SignatureGetAlgorithm
* @author youdwei
*/
import java.security.*;
public class SignatureGetAlgorithm {
public static void main(String[] args) throws Exception {
Provider testProvider = new TestProvider();
Security.addProvider(testProvider);
Signature sig = Signature.getInstance("MySignatureAlg");
String algorithm = sig.getAlgorithm();
System.out.println("Algorithm Name: " + algorithm);
if (algorithm == null) {
throw new Exception("algorithm name should be 'MySignatureAlg'");
}
}
public static class TestProvider extends Provider {
TestProvider() {
super("testSignatureGetAlgorithm", "1.0", "test Signatures");
put("Signature.MySignatureAlg",
"SignatureGetAlgorithm$MySignatureAlg");
}
}
public static class MySignatureAlg extends Signature {
public MySignatureAlg() {
super(null);
}
MySignatureAlg(String s) {
super(s);
}
@Override
protected void engineInitVerify(PublicKey publicKey)
throws InvalidKeyException {
}
@Override
protected void engineInitSign(PrivateKey privateKey)
throws InvalidKeyException {
}
@Override
protected void engineUpdate(byte b) throws SignatureException {
}
@Override
protected void engineUpdate(byte[] b, int off, int len)
throws SignatureException {
}
@Override
protected byte[] engineSign()
throws SignatureException {
return new byte[0];
}
@Override
protected boolean engineVerify(byte[] sigBytes)
throws SignatureException {
return false;
}
@Override
@Deprecated
protected void engineSetParameter(String param, Object value)
throws InvalidParameterException {
}
@Override
@Deprecated
protected Object engineGetParameter(String param)
throws InvalidParameterException {
return null;
}
}
}
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