TestECGenSpec.java revision 7753:e47569593fa0 
1/*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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7 * published by the Free Software Foundation.
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
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15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 */
23
24/**
25 * @test
26 * @bug 6405536
27 * @summary Verify that we can use ECGenParameterSpec
28 * @author Andreas Sterbenz
29 * @library ..
30 */
31
32import java.util.*;
33
34import java.security.*;
35import java.security.spec.*;
36import java.security.interfaces.ECPublicKey;
37
38public class TestECGenSpec extends PKCS11Test {
39
40    public static void main(String[] args) throws Exception {
41        main(new TestECGenSpec());
42    }
43
44    public void main(Provider p) throws Exception {
45        if (p.getService("Signature", "SHA1withECDSA") == null) {
46            System.out.println("Provider does not support ECDSA, skipping...");
47            return;
48        }
49
50        if (isNSS(p) && getNSSVersion() >= 3.11 && getNSSVersion() < 3.12) {
51            System.out.println("NSS 3.11 has a DER issue that recent " +
52                    "version do not.");
53            return;
54        }
55
56        String[] names = { "secp256r1", "NIST P-192", "sect163k1", "1.3.132.0.26",
57            "X9.62 c2tnb239v1"};
58        int curves = 1;
59        if (getNSSECC() == ECCState.Extended) {
60            curves = names.length;
61        }
62        int[] lengths = {256, 192, 163, 233, 239};
63        for (int i = 0; i < curves; i++) {
64            String name = names[i];
65            int len = lengths[i];
66            System.out.println("Testing " + name + "...");
67            ECGenParameterSpec spec = new ECGenParameterSpec(name);
68
69            AlgorithmParameters algParams = AlgorithmParameters.getInstance("EC", p);
70            algParams.init(spec);
71            ECParameterSpec ecSpec = algParams.getParameterSpec(ECParameterSpec.class);
72            System.out.println(ecSpec);
73            // no public API to get the curve name, so rely on toString();
74            if (ecSpec.toString().contains(name) == false) {
75                throw new Exception("wrong curve");
76            }
77
78            algParams = AlgorithmParameters.getInstance("EC", p);
79            algParams.init(ecSpec);
80            ECGenParameterSpec genSpec = algParams.getParameterSpec(ECGenParameterSpec.class);
81            System.out.println(genSpec.getName());
82
83            KeyPairGenerator kpg = KeyPairGenerator.getInstance("EC", p);
84            kpg.initialize(spec);
85            KeyPair kp = kpg.generateKeyPair();
86            System.out.println(kp.getPrivate());
87            ECPublicKey publicKey = (ECPublicKey)kp.getPublic();
88            if (publicKey.getParams().getCurve().getField().getFieldSize() != len) {
89                throw new Exception("wrong curve");
90            }
91            System.out.println();
92        }
93    }
94
95}
96