0N/A/*
2362N/A * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A/*
0N/A * @test
0N/A * @bug 4511556
0N/A * @summary Verify BitString value containing padding bits is accepted.
0N/A */
0N/A
0N/Aimport java.io.*;
0N/Aimport java.util.Arrays;
0N/Aimport java.math.BigInteger;
0N/A
0N/Aimport sun.security.util.DerInputStream;
0N/A
0N/Apublic class PaddedBitString {
0N/A
0N/A // Relaxed the BitString parsing routine to accept bit strings
0N/A // with padding bits, ex. treat DER_BITSTRING_PAD6 as the same
0N/A // bit string as DER_BITSTRING_NOPAD.
0N/A // Note:
0N/A // 1. the number of padding bits has to be in [0...7]
0N/A // 2. value of the padding bits is ignored
0N/A
0N/A // bit string (01011101 11000000)
0N/A // With 6 padding bits (01011101 11001011)
0N/A private final static byte[] DER_BITSTRING_PAD6 = { 3, 3, 6,
0N/A (byte)0x5d, (byte)0xcb };
0N/A
0N/A // With no padding bits
0N/A private final static byte[] DER_BITSTRING_NOPAD = { 3, 3, 0,
0N/A (byte)0x5d, (byte)0xc0 };
0N/A
0N/A public static void main(String args[]) throws Exception {
0N/A byte[] ba0, ba1;
0N/A try {
0N/A DerInputStream derin = new DerInputStream(DER_BITSTRING_PAD6);
0N/A ba1 = derin.getBitString();
0N/A } catch( IOException e ) {
0N/A e.printStackTrace();
0N/A throw new Exception("Unable to parse BitString with 6 padding bits");
0N/A }
0N/A
0N/A try {
0N/A DerInputStream derin = new DerInputStream(DER_BITSTRING_NOPAD);
0N/A ba0 = derin.getBitString();
0N/A } catch( IOException e ) {
0N/A e.printStackTrace();
0N/A throw new Exception("Unable to parse BitString with no padding");
0N/A }
0N/A
0N/A if (Arrays.equals(ba1, ba0) == false ) {
0N/A throw new Exception("BitString comparison check failed");
0N/A }
0N/A }
0N/A}