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/*
* Copyright (c) 2021, 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 8261502
* @summary Check that ECPrivateKey's that are not ECPrivateKeyImpl can use
* ECDHKeyAgreement
*/
import javax.crypto.KeyAgreement;
import java.math.BigInteger;
import java.security.KeyPairGenerator;
import java.security.interfaces.ECPrivateKey;
import java.security.interfaces.ECPublicKey;
import java.security.spec.ECGenParameterSpec;
import java.security.spec.ECParameterSpec;
public class ECKeyCheck {
public static final void main(String args[]) throws Exception {
ECGenParameterSpec spec = new ECGenParameterSpec("secp256r1");
KeyPairGenerator kpg = KeyPairGenerator.getInstance("EC");
kpg.initialize(spec);
ECPrivateKey privKey = (ECPrivateKey) kpg.generateKeyPair().getPrivate();
ECPublicKey pubKey = (ECPublicKey) kpg.generateKeyPair().getPublic();
generateECDHSecret(privKey, pubKey);
generateECDHSecret(new newPrivateKeyImpl(privKey), pubKey);
}
private static byte[] generateECDHSecret(ECPrivateKey privKey,
ECPublicKey pubKey) throws Exception {
KeyAgreement ka = KeyAgreement.getInstance("ECDH");
ka.init(privKey);
ka.doPhase(pubKey, true);
return ka.generateSecret();
}
// Test ECPrivateKey class
private static class newPrivateKeyImpl implements ECPrivateKey {
private ECPrivateKey p;
newPrivateKeyImpl(ECPrivateKey p) {
this.p = p;
}
public BigInteger getS() {
return p.getS();
}
public byte[] getEncoded() {
return p.getEncoded();
}
public String getFormat() {
return p.getFormat();
}
public String getAlgorithm() {
return p.getAlgorithm();
}
public ECParameterSpec getParams() {
return p.getParams();
}
}
}
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