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/*
* Copyright (c) 2015, 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.
*/
import java.security.InvalidKeyException;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.Signature;
import java.security.SignatureException;
import java.util.List;
/*
* Utilities for testing the signature algorithm OIDs.
*/
public class TestSignatureOidHelper {
private static final byte[] INPUT = "1234567890".getBytes();
private final String algorithm;
private final String provider;
private final int keySize;
private final List<OidAlgorithmPair> data;
public TestSignatureOidHelper(String algorithm, String provider,
int keySize, List<OidAlgorithmPair> data) {
this.algorithm = algorithm;
this.provider = provider;
this.keySize = keySize;
this.data = data;
}
public void execute() throws Exception {
KeyPair keyPair = createKeyPair();
for (OidAlgorithmPair oidAlgorithmPair : data) {
runTest(oidAlgorithmPair, keyPair);
System.out.println("passed");
}
System.out.println("All tests passed");
}
private KeyPair createKeyPair()
throws NoSuchAlgorithmException, NoSuchProviderException {
KeyPairGenerator keyGen = KeyPairGenerator.getInstance(algorithm,
provider);
keyGen.initialize(keySize);
return keyGen.generateKeyPair();
}
private void runTest(OidAlgorithmPair oidAlgorithmPair, KeyPair keyPair)
throws NoSuchAlgorithmException, NoSuchProviderException,
InvalidKeyException, SignatureException {
Signature sgAlgorithm =
Signature.getInstance(oidAlgorithmPair.algorithm, provider);
Signature sgOid = Signature.getInstance(oidAlgorithmPair.oid, provider);
if (sgAlgorithm == null) {
throw new RuntimeException(String.format(
"Test failed: algorithm string %s getInstance failed.%n",
oidAlgorithmPair.algorithm));
}
if (sgOid == null) {
throw new RuntimeException(
String.format("Test failed: OID %s getInstance failed.%n",
oidAlgorithmPair.oid));
}
if (!sgAlgorithm.getAlgorithm().equals(oidAlgorithmPair.algorithm)) {
throw new RuntimeException(String.format(
"Test failed: algorithm string %s getInstance "
+ "doesn't generate expected algorithm.%n",
oidAlgorithmPair.algorithm));
}
sgAlgorithm.initSign(keyPair.getPrivate());
sgAlgorithm.update(INPUT);
sgOid.initVerify(keyPair.getPublic());
sgOid.update(INPUT);
if (!sgOid.verify(sgAlgorithm.sign())) {
throw new RuntimeException(
"Signature verification failed unexpectedly");
}
}
}
class OidAlgorithmPair {
public final String oid;
public final String algorithm;
public OidAlgorithmPair(String oid, String algorithm) {
this.oid = oid;
this.algorithm = algorithm;
}
@Override
public String toString() {
return "[oid=" + oid + ", algorithm=" + algorithm + "]";
}
}
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