jdk-24/test/jdk/sun/security/ec/ed/EdECKeyFormat.java
2021-01-08 21:32:54 +00:00

143 lines
4.9 KiB
Java

/*
* Copyright (c) 2020, 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 8166597
* @summary Check for correct formatting of EdDSA keys
* @library /test/lib
* @build jdk.test.lib.Convert
* @modules java.base/sun.security.util
* @run main EdECKeyFormat
*/
import java.security.*;
import java.security.spec.*;
import java.security.interfaces.*;
import java.io.*;
import java.nio.file.*;
import java.math.*;
import java.util.*;
import sun.security.util.*;
public class EdECKeyFormat {
private interface Test {
public void runTest(Provider p) throws Exception;
}
private static void forEachProvider(Test t, String algName)
throws Exception {
int tested = 0;
for (Provider p : Security.getProviders()) {
Provider.Service s = p.getService("KeyPairGenerator", algName);
if (s != null) {
t.runTest(p);
tested++;
}
}
if (tested == 0) {
throw new RuntimeException("no service found for " + algName);
}
}
private static Map<String, String> privKeys = Map.of(
"Ed25519",
"302e020100300506032b657004220420d4ee72dbf913584ad5b6d8f1f769f8ad3afe" +
"7c28cbf1d4fbe097a88f44755842",
"Ed448",
"3047020100300506032b6571043b043980998f387e05852d217c1d715b177c24aa7b" +
"f3f4c3a72223f4983597b9ab2ed4793c30d871c24388b380d80bb36d963f5c276219" +
"b0677fed00"
);
private static List<String> pubKeys = List.of(
"302a300506032b657003210019bf44096984cdfe8541bac167dc3b96c85086aa30b6" +
"b6cb0c5c38ad703166e1"
);
public static void main(String[] args) throws Exception {
privKeyTest("Ed25519");
privKeyTest("Ed448");
pubKeyTest();
}
private static void pubKeyTest() throws Exception {
forEachProvider(EdECKeyFormat::pubKeyTest, "EdDSA");
}
private static void pubKeyTest(Provider p) throws Exception {
for (String s : pubKeys) {
pubKeyTest(p, s);
}
}
private static void pubKeyTest(Provider p, String key) throws Exception {
// ensure that a properly-formatted key can be read
byte[] encodedKey = HexFormat.of().parseHex(key);
X509EncodedKeySpec keySpec = new X509EncodedKeySpec(encodedKey);
KeyFactory kf = KeyFactory.getInstance("EdDSA", p);
kf.generatePublic(keySpec);
}
private static void privKeyTest(String algName) throws Exception {
forEachProvider(p -> privKeyTest(algName, p), algName);
}
private static void privKeyTest(String algName, Provider p)
throws Exception {
System.out.println("Testing " + algName + " in " + p.getName());
// ensure format produced is correct
KeyPairGenerator kpg = KeyPairGenerator.getInstance(algName, p);
KeyPair kp = kpg.generateKeyPair();
PrivateKey priv = kp.getPrivate();
checkPrivKeyFormat(priv.getEncoded());
KeyFactory kf = KeyFactory.getInstance(algName, p);
PKCS8EncodedKeySpec keySpec =
kf.getKeySpec(priv, PKCS8EncodedKeySpec.class);
checkPrivKeyFormat(keySpec.getEncoded());
// ensure that a properly-formatted key can be read
byte[] encodedKey = HexFormat.of().parseHex(privKeys.get(algName));
keySpec = new PKCS8EncodedKeySpec(encodedKey);
kf.generatePrivate(keySpec);
}
private static void checkPrivKeyFormat(byte[] key) throws IOException {
// key value should be nested octet strings
DerValue val = new DerValue(new ByteArrayInputStream(key));
BigInteger version = val.data.getBigInteger();
DerValue algId = val.data.getDerValue();
byte[] keyValue = val.data.getOctetString();
val = new DerValue(new ByteArrayInputStream(keyValue));
if (val.tag != DerValue.tag_OctetString) {
throw new RuntimeException("incorrect format");
}
}
}