84 lines
3.2 KiB
Java
84 lines
3.2 KiB
Java
/*
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* Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8297878
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* @summary Generate large number of Secret Keys using same KEM
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* @library /test/lib
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* @run main/othervm -Djava.security.egd=file:/dev/urandom GenLargeNumberOfKeys
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*/
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import java.security.KeyPair;
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import java.security.KeyPairGenerator;
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import java.util.Arrays;
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import javax.crypto.KEM;
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import javax.crypto.SecretKey;
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import java.security.spec.ECGenParameterSpec;
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import jdk.test.lib.Asserts;
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public class GenLargeNumberOfKeys {
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private static final int COUNT = 1000;
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public static void main(String[] args) throws Exception {
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KEM kem = KEM.getInstance("DHKEM");
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testAlgo(kem, "X448", null);
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testAlgo(kem, "EC", "secp521r1");
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}
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private static void testAlgo(KEM kem, String algo, String curveId) throws Exception {
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KeyPair kp = genKeyPair(algo, curveId);
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KEM.Encapsulator e = kem.newEncapsulator(kp.getPublic());
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KEM.Decapsulator d = kem.newDecapsulator(kp.getPrivate());
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for (int i = 0; i < COUNT; i++) {
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test(e, d);
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}
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System.out.println(algo + ": test Successful");
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}
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private static KeyPair genKeyPair(String algo, String curveId) throws Exception {
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KeyPairGenerator kpg = KeyPairGenerator.getInstance(algo);
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if (curveId != null) {
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kpg.initialize(new ECGenParameterSpec(curveId));
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}
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return kpg.generateKeyPair();
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}
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private static void test(KEM.Encapsulator e, KEM.Decapsulator d)
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throws Exception {
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KEM.Encapsulated enc = e.encapsulate();
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SecretKey sk = enc.key();
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Asserts.assertEQ(d.encapsulationSize(), enc.encapsulation().length);
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Asserts.assertEQ(d.secretSize(), enc.key().getEncoded().length);
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Asserts.assertTrue(Arrays.equals(d.decapsulate(enc.encapsulation()).getEncoded(),
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sk.getEncoded()));
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// Repeated calls to encapsulation() on Encapsulated object don't change anything
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Asserts.assertTrue(Arrays.equals(d.decapsulate(enc.encapsulation()).getEncoded(),
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sk.getEncoded()));
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Asserts.assertTrue(Arrays.equals(d.decapsulate(enc.encapsulation()).getEncoded(),
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enc.key().getEncoded()));
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}
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}
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