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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).

 *

 * 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.

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/**

 * @test

 * @bug 6405536 6414980

 * @summary Basic consistency test for all curves using ECDSA and ECDH

 * @author Andreas Sterbenz

 * @library ..

 * @compile -XDignore.symbol.file TestCurves.java

 * @run main TestCurves

 */

import java.util.*;

import java.security.*;

import java.security.spec.*;

import javax.crypto.*;

// XXX no public API to enumerate supported named curves

import sun.security.ec.NamedCurve;

public class TestCurves extends PKCS11Test {

    public static void main(String[] args) throws Exception {

        main(new TestCurves());

    }

    public void main(Provider p) throws Exception {

        if (p.getService("KeyAgreement", "ECDH") == null) {

            System.out.println("Not supported by provider, skipping");

            return;

        }

        Random random = new Random();

        byte[] data = new byte[2048];

        random.nextBytes(data);

        Collection<? extends ECParameterSpec> curves =

            NamedCurve.knownECParameterSpecs();

        for (ECParameterSpec params : curves) {

            System.out.println("Testing " + params + "...");

            KeyPairGenerator kpg = KeyPairGenerator.getInstance("EC", p);

            kpg.initialize(params);

            KeyPair kp1, kp2;

            kp1 = kpg.generateKeyPair();

            kp2 = kpg.generateKeyPair();

            testSigning(p, "SHA1withECDSA", data, kp1, kp2);

            testSigning(p, "SHA256withECDSA", data, kp1, kp2);

            testSigning(p, "SHA384withECDSA", data, kp1, kp2);

            testSigning(p, "SHA512withECDSA", data, kp1, kp2);

            // System.out.println();

            KeyAgreement ka1 = KeyAgreement.getInstance("ECDH", p);

            ka1.init(kp1.getPrivate());

            ka1.doPhase(kp2.getPublic(), true);

            byte[] secret1 = ka1.generateSecret();

            KeyAgreement ka2 = KeyAgreement.getInstance("ECDH", p);

            ka2.init(kp2.getPrivate());

            ka2.doPhase(kp1.getPublic(), true);

            byte[] secret2 = ka2.generateSecret();

            if (Arrays.equals(secret1, secret2) == false) {

                throw new Exception("Secrets do not match");

            }

        }

        System.out.println("OK");

    }

    private static void testSigning(Provider p, String algorithm,

            byte[] data, KeyPair kp1, KeyPair kp2) throws Exception {

        // System.out.print("  " + algorithm);

        Signature s = Signature.getInstance(algorithm, p);

        s.initSign(kp1.getPrivate());

        s.update(data);

        byte[] sig = s.sign();

        s = Signature.getInstance(algorithm, p);

        s.initVerify(kp1.getPublic());

        s.update(data);

        boolean r = s.verify(sig);

        if (r == false) {

            throw new Exception("Signature did not verify");

        }

        s.initVerify(kp2.getPublic());

        s.update(data);

        r = s.verify(sig);

        if (r) {

            throw new Exception("Signature should not verify");

        }

    }

}