/*

 * Copyright (c) 2012, 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) 2012 IBM Corporation

 */

/* @test

 * @bug 7172149

 * @summary AIOOBE from Signature.verify after integer overflow

 * @author Jonathan Lu

 */

import java.security.KeyPair;

import java.security.KeyPairGenerator;

import java.security.PublicKey;

import java.security.Signature;

public class VerifyRangeCheckOverflow {

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

        KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("DSA");

        keyPairGenerator.initialize(1024);

        KeyPair keys = keyPairGenerator.generateKeyPair();

        PublicKey publicKey = keys.getPublic();

        byte[] sigBytes = new byte[100];

        Signature signature = Signature.getInstance("SHA1withDSA");

        signature.initVerify(publicKey);

        try {

            signature.verify(sigBytes, Integer.MAX_VALUE, 1);

        } catch (IllegalArgumentException ex) {

            // Expected

        }

    }

}