/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* 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).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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*/
/*
* @test
* @bug 7081411
* @summary DSA keypair generation affected by Solaris bug
*/
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.Signature;
import sun.security.provider.DSAPrivateKey;
public class SolarisShortDSA {
static byte[] data = new byte[0];
public static void main(String args[]) throws Exception {
for (int i=0; i<10000; i++) {
KeyPairGenerator kpg = KeyPairGenerator.getInstance("DSA");
KeyPair kp = kpg.generateKeyPair();
DSAPrivateKey dpk = (DSAPrivateKey)kp.getPrivate();
int len = dpk.getX().bitLength();
if (len <= 152) {
if (!use(kp)) {
String os = System.getProperty("os.name");
// Solaris bug, update the following line once it's fixed
if (os.equals("SunOS")) {
throw new IllegalStateException(
"Don't panic. This is a Solaris bug");
} else {
throw new RuntimeException("Real test failure");
}
}
break;
}
}
}
static boolean use(KeyPair kp) throws Exception {
Signature sig = Signature.getInstance("SHA1withDSA");
sig.initSign(kp.getPrivate());
sig.update(data);
byte[] signed = sig.sign();
Signature sig2 = Signature.getInstance("SHA1withDSA");
sig2.initVerify(kp.getPublic());
sig2.update(data);
return sig2.verify(signed);
}
}