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/*
* Copyright (c) 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 8184359
* @summary KeyLength support test for DiffieHellman, EC, XDH.
* Arguments order <KeyExchangeAlgorithm> <Provider> <KeyGenAlgorithm> <keyLen>
* @library /test/lib
* @build jdk.test.lib.Convert
* @run main KeySizeTest DiffieHellman SunJCE DiffieHellman 512
* @run main KeySizeTest DiffieHellman SunJCE DiffieHellman 768
* @run main KeySizeTest DiffieHellman SunJCE DiffieHellman 832
* @run main KeySizeTest DiffieHellman SunJCE DiffieHellman 1024
* @run main KeySizeTest DiffieHellman SunJCE DiffieHellman 2048
* @run main KeySizeTest DiffieHellman SunJCE DiffieHellman 3072
* @run main KeySizeTest DiffieHellman SunJCE DiffieHellman 4096
* @run main KeySizeTest DiffieHellman SunJCE DiffieHellman 6144
* @run main KeySizeTest DiffieHellman SunJCE DiffieHellman 8192
* @run main KeySizeTest ECDH SunEC EC 128
* @run main KeySizeTest ECDH SunEC EC 192
* @run main KeySizeTest ECDH SunEC EC 256
* @run main KeySizeTest XDH SunEC XDH 255
* @run main KeySizeTest XDH SunEC XDH 448
*/
import java.math.BigInteger;
import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.interfaces.ECPrivateKey;
import java.security.interfaces.ECPublicKey;
import java.security.interfaces.XECPrivateKey;
import java.security.interfaces.XECPublicKey;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
import java.security.spec.NamedParameterSpec;
import java.util.Arrays;
import javax.crypto.KeyAgreement;
import javax.crypto.interfaces.DHPrivateKey;
import javax.crypto.interfaces.DHPublicKey;
import jdk.test.lib.Convert;
public class KeySizeTest {
public static void main(String[] args) throws Exception {
String kaAlgo = args[0];
String provider = args[1];
String kpgAlgo = args[2];
int keySize = Integer.parseInt(args[3]);
testKeyAgreement(provider, kaAlgo, kpgAlgo, keySize);
}
/**
* Perform KeyAgreement operation.
*/
private static void testKeyAgreement(String provider, String kaAlgo,
String kpgAlgo, int keySize) throws Exception {
KeyPairGenerator kpg = KeyPairGenerator.getInstance(kpgAlgo, provider);
kpg.initialize(keySize);
KeyPair kp = kpg.generateKeyPair();
// Test standard Key attributes.
testKeyAttributes(provider, kpgAlgo, kp, keySize);
// Test KeyAgreement.
KeyAgreement ka = KeyAgreement.getInstance(kaAlgo, provider);
ka.init(kp.getPrivate());
ka.doPhase(kp.getPublic(), true);
ka.generateSecret();
}
/**
* Test standard Key attributes.
*/
private static void testKeyAttributes(String provider, String kpgAlgo,
KeyPair kp, int keySize) throws Exception {
KeyFactory kf = KeyFactory.getInstance(kpgAlgo, provider);
switch (kpgAlgo) {
case "DiffieHellman":
// Verify PrivateKey attributes.
DHPrivateKey dhPri = (DHPrivateKey) kp.getPrivate();
BigInteger p = dhPri.getParams().getP();
if (p.bitLength() != keySize) {
throw new Exception(String.format("Invalid modulus size: "
+ "%s/%s", p.bitLength(), keySize));
}
if (!p.isProbablePrime(128)) {
throw new Exception("The modulus is composite!");
}
PKCS8EncodedKeySpec dhPriSpec
= new PKCS8EncodedKeySpec(dhPri.getEncoded());
DHPrivateKey dhPriDecod
= (DHPrivateKey) kf.generatePrivate(dhPriSpec);
equals(dhPri.getX(), dhPriDecod.getX());
equals(dhPri.getFormat(), dhPriDecod.getFormat());
equals(dhPri.getEncoded(), dhPriDecod.getEncoded());
equals(dhPri.getParams().getG(), dhPriDecod.getParams().getG());
equals(dhPri.getParams().getL(), dhPriDecod.getParams().getL());
equals(dhPri.getParams().getP(), dhPriDecod.getParams().getP());
// Verify PublicKey attributes.
DHPublicKey dhPub = (DHPublicKey) kp.getPublic();
p = dhPub.getParams().getP();
if (p.bitLength() != keySize) {
throw new Exception(String.format("Invalid modulus size: "
+ "%s/%s", p.bitLength(), keySize));
}
X509EncodedKeySpec dhPubSpec
= new X509EncodedKeySpec(dhPub.getEncoded());
DHPublicKey dhPubDecod
= (DHPublicKey) kf.generatePublic(dhPubSpec);
equals(dhPub.getY(), dhPubDecod.getY());
equals(dhPub.getFormat(), dhPubDecod.getFormat());
equals(dhPub.getEncoded(), dhPubDecod.getEncoded());
equals(dhPub.getParams().getG(), dhPubDecod.getParams().getG());
equals(dhPub.getParams().getL(), dhPubDecod.getParams().getL());
equals(dhPub.getParams().getP(), dhPubDecod.getParams().getP());
BigInteger left = BigInteger.ONE;
BigInteger right = p.subtract(BigInteger.ONE);
BigInteger x = dhPri.getX();
if ((x.compareTo(left) <= 0) || (x.compareTo(right) >= 0)) {
throw new Exception(
"X outside range [2, p - 2]: x: " + x + " p: " + p);
}
BigInteger y = dhPub.getY();
if ((y.compareTo(left) <= 0) || (y.compareTo(right) >= 0)) {
throw new Exception(
"Y outside range [2, p - 2]: x: " + x + " p: " + p);
}
break;
case "EC":
// Verify PrivateKey attributes.
ECPrivateKey ecPriv = (ECPrivateKey) kp.getPrivate();
PKCS8EncodedKeySpec ecPriSpec
= new PKCS8EncodedKeySpec(ecPriv.getEncoded());
ECPrivateKey ecPriDecod
= (ECPrivateKey) kf.generatePrivate(ecPriSpec);
equals(ecPriv.getS(), ecPriDecod.getS());
equals(ecPriv.getFormat(), ecPriDecod.getFormat());
equals(ecPriv.getEncoded(), ecPriDecod.getEncoded());
equals(ecPriv.getParams().getCofactor(),
ecPriDecod.getParams().getCofactor());
equals(ecPriv.getParams().getCurve(),
ecPriDecod.getParams().getCurve());
equals(ecPriv.getParams().getGenerator(),
ecPriDecod.getParams().getGenerator());
equals(ecPriv.getParams().getOrder(),
ecPriDecod.getParams().getOrder());
// Verify PublicKey attributes.
ECPublicKey ecPub = (ECPublicKey) kp.getPublic();
X509EncodedKeySpec ecPubSpec
= new X509EncodedKeySpec(ecPub.getEncoded());
ECPublicKey ecPubDecod
= (ECPublicKey) kf.generatePublic(ecPubSpec);
equals(ecPub.getW(), ecPubDecod.getW());
equals(ecPub.getFormat(), ecPubDecod.getFormat());
equals(ecPub.getEncoded(), ecPubDecod.getEncoded());
equals(ecPub.getParams().getCofactor(),
ecPubDecod.getParams().getCofactor());
equals(ecPub.getParams().getCurve(),
ecPubDecod.getParams().getCurve());
equals(ecPub.getParams().getGenerator(),
ecPubDecod.getParams().getGenerator());
equals(ecPub.getParams().getOrder(),
ecPubDecod.getParams().getOrder());
break;
case "XDH":
// Verify PrivateKey attributes.
XECPrivateKey xdhPri = (XECPrivateKey) kp.getPrivate();
PKCS8EncodedKeySpec xdhPriSpec
= new PKCS8EncodedKeySpec(xdhPri.getEncoded());
XECPrivateKey xdhPriDec
= (XECPrivateKey) kf.generatePrivate(xdhPriSpec);
equals(xdhPri.getScalar().get(), xdhPriDec.getScalar().get());
equals(xdhPri.getFormat(), xdhPriDec.getFormat());
equals(xdhPri.getEncoded(), xdhPriDec.getEncoded());
equals(((NamedParameterSpec) xdhPri.getParams()).getName(),
((NamedParameterSpec) xdhPriDec.getParams()).getName());
// Verify PublicKey attributes.
XECPublicKey xdhPub = (XECPublicKey) kp.getPublic();
X509EncodedKeySpec xdhPubSpec
= new X509EncodedKeySpec(xdhPub.getEncoded());
XECPublicKey xdhPubDec
= (XECPublicKey) kf.generatePublic(xdhPubSpec);
equals(xdhPub.getU(), xdhPubDec.getU());
equals(xdhPub.getFormat(), xdhPubDec.getFormat());
equals(xdhPub.getEncoded(), xdhPubDec.getEncoded());
equals(((NamedParameterSpec) xdhPub.getParams()).getName(),
((NamedParameterSpec) xdhPubDec.getParams()).getName());
break;
default:
throw new RuntimeException("Invalid Algo name " + kpgAlgo);
}
}
private static boolean equals(Object actual, Object expected) {
boolean equals = actual.equals(expected);
if (!equals) {
throw new RuntimeException(String.format("Actual: %s, Expected: %s",
actual, expected));
}
return equals;
}
private static boolean equals(byte[] actual, byte[] expected) {
boolean equals = Arrays.equals(actual, expected);
if (!equals) {
throw new RuntimeException(String.format("Actual array: %s, "
+ "Expected array:%s", Convert.byteArrayToHexString(actual),
Convert.byteArrayToHexString(expected)));
}
return equals;
}
}
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