1 /*

     2  * Copyright (c) 2018, 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  * @test

    26  * @bug 8214096

    27  * @summary Make sure SignatureUtil can accept null algorithm parameters

    28  * @modules java.base/sun.security.util

    29  */

    30 import java.security.*;

    31 import java.security.spec.AlgorithmParameterSpec;

    32 import sun.security.util.SignatureUtil;

    33 

    34 public class SetNullSigParams {

    35 

    36     public static void main(String[] args) throws Exception {

    37         Signature sig = new SpecialSigImpl();

    38         SignatureUtil.specialSetParameter(sig, (byte[]) null);

    39         SignatureUtil.specialSetParameter(sig, (AlgorithmParameters) null);

    40     }

    41 

    42     // Sample Signature impl class which simulates 3rd party provider behavior

    43     // and throws NPE when given null algorithm parameters

    44     // For max backward-compatibility, sun.security.util.SignatureUtil class

    45     // now calls setParameter() only when algorithm parameters is non-null

    46     private static class SpecialSigImpl extends Signature {

    47         SpecialSigImpl() {

    48             super("ANY");

    49         }

    50         @Override

    51         protected void engineInitVerify(PublicKey publicKey)

    52                 throws InvalidKeyException {}

    53         @Override

    54         protected void engineInitSign(PrivateKey privateKey)

    55                 throws InvalidKeyException {}

    56         @Override

    57         protected void engineUpdate(byte b) throws SignatureException {}

    58         @Override

    59         protected void engineUpdate(byte[] b, int off, int len)

    60                 throws SignatureException {}

    61         @Override

    62         protected byte[] engineSign() throws SignatureException { return null; }

    63         @Override

    64         protected boolean engineVerify(byte[] sigBytes)

    65                 throws SignatureException { return false; }

    66         @Override

    67         protected void engineSetParameter(String param, Object value)

    68                 throws InvalidParameterException {}

    69         @Override

    70         protected void engineSetParameter(AlgorithmParameterSpec params)

    71                 throws InvalidAlgorithmParameterException {

    72             if (params == null) throw new NullPointerException("Test Failed");

    73         }

    74         @Override

    75         protected Object engineGetParameter(String param)

    76                 throws InvalidParameterException { return null; }

    77     }

    78 }