/*
* Copyright (c) 2010, 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.
*/
/* @test
* @summary Validation of signatures succeed when it should fail
* @bug 6896700
*/
import java.io.InputStream;
import java.io.ByteArrayInputStream;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
import java.security.PublicKey;
import java.security.SignatureException;
public class InvalidBitString {
// Test cert for CN=CA
static String signerCertStr =
"-----BEGIN CERTIFICATE-----\n" +
"MIIBtDCCAR2gAwIBAgIEemxRHjANBgkqhkiG9w0BAQUFADANMQswCQYDVQQDEwJDQTAeFw0xMDA2\n" +
"MDMwODA2MjlaFw0xMDA5MDEwODA2MjlaMA0xCzAJBgNVBAMTAkNBMIGfMA0GCSqGSIb3DQEBAQUA\n" +
"A4GNADCBiQKBgQCp2G7pGwMOw4oM7zFFeRKrByuPLNAXClGsh+itdRiOeUgEby6OB9IAgXm93086\n" +
"Z9dWCfRYbzJbDRSnUE7FS1iQsIRIeOEuFMIMogcBK+sOf364ONwMXsI4gtYVmxn4BaaajVWt6C/g\n" +
"FBGZQxp81aORDyUIrlCkMIxhZBSsNPIJYwIDAQABoyEwHzAdBgNVHQ4EFgQUKrvzNhJmdKoqq2li\n" +
"utCzKkwA1N0wDQYJKoZIhvcNAQEFBQADgYEAEIaegsW7fWWjXk4YOMlcl893vx6tnU8ThuQSjwGI\n" +
"rIs93sBYuY7lQIpQw8+XM89WT1XuBB6R2SsnxeW+gHtsU/EE6iJJAEMeCILwEGUL02blwHBQWmpa\n" +
"i3YeGXw+IFe/4OAysPT7ZRbUb7mPt37Ht6hIjain71ShR5anXIuawVE=\n" +
"-----END CERTIFICATE-----\n";
// Test cert for CN=A, happens to have a zero at the beginning of signature
static String normalCertStr =
"-----BEGIN CERTIFICATE-----\n" +
"MIIB1DCCAT2gAwIBAgIEae+u1TANBgkqhkiG9w0BAQUFADANMQswCQYDVQQDEwJDQTAeFw0xMDA2\n" +
"MDMwODA2NTNaFw0xMDA5MDEwODA2NTNaMAwxCjAIBgNVBAMTAUEwgZ8wDQYJKoZIhvcNAQEBBQAD\n" +
"gY0AMIGJAoGBAKZ7C6bC8AJmXIRNwuPJcgIPW1ygN3rE5PIKPAkeK/dYnPmUJNuiSxOFPJCrLMuL\n" +
"sweQh82Dq/viu+KBb27xVzJ4pK02fbcWdJDo7cIms0Wm+HckK5myA6xmqnpmPOjb/vWCLE6pN2Xg\n" +
"pJyrdeWV77eBvqE9OiCsMTP8WgHI9zLvAgMBAAGjQjBAMB0GA1UdDgQWBBTtIKqCHnL9QeFn+YrX\n" +
"+k00NUk9mjAfBgNVHSMEGDAWgBQqu/M2EmZ0qiqraWK60LMqTADU3TANBgkqhkiG9w0BAQUFAAOB\n" +
"gQAAOcQsEruDAY/z3eXJ7OtWSZlLC0yTVNVdUVNLQ58xNqPrmKNBXNpj/72N8xrTB++ApW+DLgLy\n" +
"cwGU5PVRtsYeiV6prUkpqUf62SQgwI4guAQy1ileeP1CNQJI3cHQExMAHvQT8fJtlD0WZD3nfesq\n" +
"mmQDOpoJLkmO/73Z7IibVA==\n" +
"-----END CERTIFICATE-----\n";
// normalCertStr with an extra zero at the beginning of signature
static String longerCertStr =
"-----BEGIN CERTIFICATE-----\n" +
"MIIB1TCCAT2gAwIBAgIEae+u1TANBgkqhkiG9w0BAQUFADANMQswCQYDVQQDEwJDQTAeFw0xMDA2\n" +
"MDMwODA2NTNaFw0xMDA5MDEwODA2NTNaMAwxCjAIBgNVBAMTAUEwgZ8wDQYJKoZIhvcNAQEBBQAD\n" +
"gY0AMIGJAoGBAKZ7C6bC8AJmXIRNwuPJcgIPW1ygN3rE5PIKPAkeK/dYnPmUJNuiSxOFPJCrLMuL\n" +
"sweQh82Dq/viu+KBb27xVzJ4pK02fbcWdJDo7cIms0Wm+HckK5myA6xmqnpmPOjb/vWCLE6pN2Xg\n" +
"pJyrdeWV77eBvqE9OiCsMTP8WgHI9zLvAgMBAAGjQjBAMB0GA1UdDgQWBBTtIKqCHnL9QeFn+YrX\n" +
"+k00NUk9mjAfBgNVHSMEGDAWgBQqu/M2EmZ0qiqraWK60LMqTADU3TANBgkqhkiG9w0BAQUFAAOB\n" +
"ggAAADnELBK7gwGP893lyezrVkmZSwtMk1TVXVFTS0OfMTaj65ijQVzaY/+9jfMa0wfvgKVvgy4C\n" +
"8nMBlOT1UbbGHoleqa1JKalH+tkkIMCOILgEMtYpXnj9QjUCSN3B0BMTAB70E/HybZQ9FmQ9533r\n" +
"KppkAzqaCS5Jjv+92eyIm1Q=\n" +
"-----END CERTIFICATE-----\n";
// normalCertStr without the initial zero at the beginning of signature
static String shorterCertStr =
"-----BEGIN CERTIFICATE-----\n" +
"MIIB0zCCAT2gAwIBAgIEae+u1TANBgkqhkiG9w0BAQUFADANMQswCQYDVQQDEwJDQTAeFw0xMDA2\n" +
"MDMwODA2NTNaFw0xMDA5MDEwODA2NTNaMAwxCjAIBgNVBAMTAUEwgZ8wDQYJKoZIhvcNAQEBBQAD\n" +
"gY0AMIGJAoGBAKZ7C6bC8AJmXIRNwuPJcgIPW1ygN3rE5PIKPAkeK/dYnPmUJNuiSxOFPJCrLMuL\n" +
"sweQh82Dq/viu+KBb27xVzJ4pK02fbcWdJDo7cIms0Wm+HckK5myA6xmqnpmPOjb/vWCLE6pN2Xg\n" +
"pJyrdeWV77eBvqE9OiCsMTP8WgHI9zLvAgMBAAGjQjBAMB0GA1UdDgQWBBTtIKqCHnL9QeFn+YrX\n" +
"+k00NUk9mjAfBgNVHSMEGDAWgBQqu/M2EmZ0qiqraWK60LMqTADU3TANBgkqhkiG9w0BAQUFAAOB\n" +
"gAA5xCwSu4MBj/Pd5cns61ZJmUsLTJNU1V1RU0tDnzE2o+uYo0Fc2mP/vY3zGtMH74Clb4MuAvJz\n" +
"AZTk9VG2xh6JXqmtSSmpR/rZJCDAjiC4BDLWKV54/UI1AkjdwdATEwAe9BPx8m2UPRZkPed96yqa\n" +
"ZAM6mgkuSY7/vdnsiJtU\n" +
"-----END CERTIFICATE-----\n";
public static void main(String args[]) throws Exception {
Certificate signer = generate(signerCertStr);
// the valid certificate
Certificate normal = generate(normalCertStr);
// the invalid certificate with extra signature bits
Certificate longer = generate(longerCertStr);
// the invalid certificate without enough signature bits
Certificate shorter = generate(shorterCertStr);
if (!test(normal, signer, " normal", true) ||
!test(longer, signer, " longer", false) ||
!test(shorter, signer, "shorter", false)) {
throw new Exception("Test failed.");
}
}
private static Certificate generate(String certStr) throws Exception {
InputStream is = null;
try {
CertificateFactory cf = CertificateFactory.getInstance("X.509");
is = new ByteArrayInputStream(certStr.getBytes());
return cf.generateCertificate(is);
} finally {
if (is != null) {
is.close();
}
}
}
private static boolean test(Certificate target, Certificate signer,
String title, boolean expected) throws Exception {
System.out.print("Checking " + title + ": expected: " +
(expected ? " verified" : "NOT verified"));
boolean actual;
try {
PublicKey pubKey = signer.getPublicKey();
target.verify(pubKey);
actual = true;
} catch (SignatureException se) {
actual = false;
}
System.out.println(", actual: " +
(actual ? " verified" : "NOT verified"));
return actual == expected;
}
}