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/*
* Copyright (c) 2016, 2018, 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
* @bug 8072452
* @summary Support DHE sizes up to 8192-bits and DSA sizes up to 3072-bits
* @library /test/lib ..
* @modules jdk.crypto.cryptoki
* @run main/othervm SupportedDHKeys
* @run main/othervm SupportedDHKeys sm
*/
import java.math.BigInteger;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.Provider;
import javax.crypto.interfaces.DHPrivateKey;
import javax.crypto.interfaces.DHPublicKey;
import javax.crypto.spec.DHParameterSpec;
public class SupportedDHKeys extends PKCS11Test {
/*
* Sizes and values for various lengths.
*/
private enum SupportedKeySize {
dhp512(512), dhp768(768), dhp832(832),
dhp1024(1024), dhp1536(1536), dhp2048(2048);
// the underlying pkcs11 may not support the following sizes yet
//
// dhp3072(3072), dhp4096(4096), dhp6144(6144),
// dhp8192(8192);
final int primeSize;
SupportedKeySize(int primeSize) {
this.primeSize = primeSize;
}
}
@Override
public void main(Provider provider) throws Exception {
if (provider.getService("KeyPairGenerator", "DiffieHellman") == null) {
System.out.println("No support of DH KeyPairGenerator, skipping");
return;
}
for (SupportedKeySize keySize : SupportedKeySize.values()) {
System.out.println("Checking " + keySize.primeSize + " ...");
KeyPairGenerator kpg =
KeyPairGenerator.getInstance("DiffieHellman", provider);
kpg.initialize(keySize.primeSize);
KeyPair kp = kpg.generateKeyPair();
checkKeyPair(kp, keySize.primeSize, provider);
DHPublicKey publicKey = (DHPublicKey)kp.getPublic();
BigInteger p = publicKey.getParams().getP();
BigInteger g = publicKey.getParams().getG();
kpg.initialize(new DHParameterSpec(p, g));
kp = kpg.generateKeyPair();
checkKeyPair(kp, keySize.primeSize, provider);
}
}
private static void checkKeyPair(KeyPair kp, int pSize,
Provider provider) throws Exception {
DHPrivateKey privateKey = (DHPrivateKey)kp.getPrivate();
BigInteger p = privateKey.getParams().getP();
if (p.bitLength() != pSize) {
throw new Exception(
"Invalid modulus size: " + p.bitLength() + "/" + pSize);
}
// System.out.println("P(" + pSize + "): " + p.toString());
if (!p.isProbablePrime(128)) {
throw new Exception("Good luck, the modulus is composite!");
}
DHPublicKey publicKey = (DHPublicKey)kp.getPublic();
p = publicKey.getParams().getP();
if (p.bitLength() != pSize) {
throw new Exception(
"Invalid modulus size: " + p.bitLength() + "/" + pSize);
}
BigInteger leftOpen = BigInteger.ONE;
BigInteger rightOpen = p.subtract(BigInteger.ONE);
// ignore the private key range checking on Solaris at present
if (!provider.getName().equals("SunPKCS11-Solaris")) {
BigInteger x = privateKey.getX();
if ((x.compareTo(leftOpen) <= 0) ||
(x.compareTo(rightOpen) >= 0)) {
throw new Exception(
"X outside range [2, p - 2]: x: " + x + " p: " + p);
}
}
BigInteger y = publicKey.getY();
if ((y.compareTo(leftOpen) <= 0) ||
(y.compareTo(rightOpen) >= 0)) {
throw new Exception(
"Y outside range [2, p - 2]: y: " + y + " p: " + p);
}
}
public static void main(String[] args) throws Exception {
main(new SupportedDHKeys(), args);
}
}
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