126 lines
3.9 KiB
Java
126 lines
3.9 KiB
Java
/*
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* Copyright (c) 2015, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.io.Serializable;
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import java.security.KeyPair;
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import java.security.KeyPairGenerator;
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import java.security.Signature;
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import java.security.SignedObject;
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/*
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* @test
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* @bug 8050374
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* @summary Checks if a signed object is a copy of an original object
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* @run main Copy DSA 512
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* @run main Copy SHA256withDSA 2048
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*/
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public class Copy {
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private static final String DSA = "DSA";
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private static final int MAGIC = 123;
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public static void main(String args[]) throws Exception {
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int keySize = Integer.parseInt(args[1]);
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KeyPairGenerator kg = KeyPairGenerator.getInstance(DSA);
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kg.initialize(keySize);
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KeyPair kp = kg.genKeyPair();
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String signAlgo = args[0];
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Signature signature = Signature.getInstance(signAlgo);
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Test original = new Test();
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SignedObject so = new SignedObject(original, kp.getPrivate(),
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signature);
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System.out.println("Signature algorithm: " + so.getAlgorithm());
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signature = Signature.getInstance(signAlgo,
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System.getProperty("test.provider.name", "SUN"));
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if (!so.verify(kp.getPublic(), signature)) {
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throw new RuntimeException("Verification failed");
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}
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kg = KeyPairGenerator.getInstance(DSA);
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kg.initialize(keySize);
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kp = kg.genKeyPair();
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if (so.verify(kp.getPublic(), signature)) {
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throw new RuntimeException("Unexpected success");
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}
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Object copy = so.getObject();
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if (!original.equals(copy)) {
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throw new RuntimeException("Signed object is not equal "
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+ "to original one: " + copy);
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}
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/*
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* The signed object is a copy of an original one.
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* Once the copy is made, further manipulation
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* of the original object shouldn't has any effect on the copy.
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*/
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original.set(MAGIC - 1);
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copy = so.getObject();
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if (original.equals(copy)) {
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throw new RuntimeException("Signed object is not a copy "
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+ "of original one: " + copy);
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}
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System.out.println("Test passed");
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}
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private static class Test implements Serializable {
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private int number = MAGIC;
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public int get() {
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return number;
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}
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public void set(int magic) {
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this.number = magic;
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}
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@Override
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public int hashCode() {
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return number;
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}
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@Override
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public boolean equals(Object obj) {
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if (obj == null) {
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return false;
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}
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if (!(obj instanceof Test)) {
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return false;
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}
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Test other = (Test) obj;
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return number == other.number;
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}
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@Override
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public String toString() {
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return "" + number;
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}
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}
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}
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