224 lines
9.5 KiB
Java
224 lines
9.5 KiB
Java
/*
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* Copyright (c) 2020, 2024, 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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import static javax.crypto.Cipher.PRIVATE_KEY;
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import static javax.crypto.Cipher.PUBLIC_KEY;
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import java.security.InvalidKeyException;
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import java.security.Key;
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import java.security.KeyFactory;
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import java.security.KeyPair;
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import java.security.KeyPairGenerator;
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import java.security.NoSuchAlgorithmException;
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import java.security.NoSuchProviderException;
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import java.security.SecureRandom;
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import java.security.interfaces.EdECPrivateKey;
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import java.security.interfaces.EdECPublicKey;
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import java.security.spec.PKCS8EncodedKeySpec;
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import java.security.spec.X509EncodedKeySpec;
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import java.security.spec.EdECPrivateKeySpec;
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import java.security.spec.EdECPublicKeySpec;
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import java.security.spec.InvalidKeySpecException;
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import java.security.spec.NamedParameterSpec;
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import java.util.Arrays;
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import java.util.HexFormat;
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import jdk.test.lib.Convert;
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/*
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* @test
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* @bug 8209632
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* @summary Verify KeyLength for EDDSA, ED25519, ED448.
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* @library /test/lib
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* @build jdk.test.lib.Convert
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* @run main EdDSAKeySize
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*/
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public class EdDSAKeySize {
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private static final String EDDSA = "EDDSA";
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private static final String ED25519 = "ED25519";
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private static final String ED448 = "ED448";
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private static final String OIDN25519 = "1.3.101.112";
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private static final String OID25519 = "OID.1.3.101.112";
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private static final String OIDN448 = "1.3.101.113";
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private static final String OID448 = "OID.1.3.101.113";
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private static final String PROVIDER = System.getProperty("test.provider.name", "SunEC");
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private static final SecureRandom RND = new SecureRandom(new byte[]{0x1});
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public static void main(String[] args) throws Exception {
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for (boolean initWithRandom : new boolean[]{true, false}) {
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// As per rfc8032 the generated keysize for ED25519 is
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// 32 octets(256 bits) and ED448 is 57 octets(456 bits).
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// Case with default parameter
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testKeyAttributes(PROVIDER, EDDSA, initWithRandom, null, 256);
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testKeyAttributes(PROVIDER, ED25519, initWithRandom, null, 256);
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testKeyAttributes(PROVIDER, ED448, initWithRandom, null, 456);
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// With named parameter
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testKeyAttributes(PROVIDER, EDDSA, initWithRandom, ED25519, 256);
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testKeyAttributes(PROVIDER, ED25519, initWithRandom, ED25519, 256);
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testKeyAttributes(PROVIDER, OIDN25519, initWithRandom, ED25519, 256);
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testKeyAttributes(PROVIDER, OID25519, initWithRandom, ED25519, 256);
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testKeyAttributes(PROVIDER, ED448, initWithRandom, ED448, 456);
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testKeyAttributes(PROVIDER, OIDN448, initWithRandom, ED448, 456);
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testKeyAttributes(PROVIDER, OID448, initWithRandom, ED448, 456);
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// With size parameter
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testKeyAttributes(PROVIDER, EDDSA, initWithRandom, 255, 256);
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testKeyAttributes(PROVIDER, ED25519, initWithRandom, 255, 256);
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testKeyAttributes(PROVIDER, OIDN25519, initWithRandom, 255, 256);
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testKeyAttributes(PROVIDER, OID25519, initWithRandom, 255, 256);
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testKeyAttributes(PROVIDER, ED448, initWithRandom, 448, 456);
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testKeyAttributes(PROVIDER, OIDN448, initWithRandom, 448, 456);
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testKeyAttributes(PROVIDER, OID448, initWithRandom, 448, 456);
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}
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}
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/**
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* Test standard Key attributes.
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*/
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private static void testKeyAttributes(String provider, String name,
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boolean initWithRandom, Object param, int keySize) throws Exception {
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System.out.printf("Case name: %s, param: %s, Expected keysize: %s, "
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+ "Initiate with random: %s%n", name, param, keySize,
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initWithRandom);
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KeyPairGenerator kpg = KeyPairGenerator.getInstance(name, provider);
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if (initWithRandom) {
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if (param instanceof Integer) {
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kpg.initialize((Integer) param, RND);
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} else if (param instanceof String) {
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kpg.initialize(new NamedParameterSpec((String) param), RND);
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}
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} else {
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if (param instanceof Integer) {
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kpg.initialize((Integer) param);
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} else if (param instanceof String) {
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kpg.initialize(new NamedParameterSpec((String) param));
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}
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}
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KeyPair kp = kpg.generateKeyPair();
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NamedParameterSpec namedSpec = getNamedParamSpec(name);
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// Verify original PrivateKey with it's different representation
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Key[] privs = manipulateKey(provider, name, PRIVATE_KEY,
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kp.getPrivate(), namedSpec);
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Arrays.stream(privs).forEach(
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priv -> testPrivateKey((EdECPrivateKey) kp.getPrivate(),
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(EdECPrivateKey) priv, keySize));
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// Verify original PublicKey with it's different representation
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Key[] pubs = manipulateKey(provider, name, PUBLIC_KEY,
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kp.getPublic(), namedSpec);
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Arrays.stream(pubs).forEach(
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pub -> testPublicKey((EdECPublicKey) kp.getPublic(),
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(EdECPublicKey) pub));
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System.out.println("Passed.");
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}
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private static NamedParameterSpec getNamedParamSpec(String algo) {
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NamedParameterSpec namedSpec = switch (algo) {
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case EDDSA
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, OIDN25519, OID25519 -> new NamedParameterSpec(ED25519);
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case OIDN448
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, OID448 -> new NamedParameterSpec(ED448);
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default->
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new NamedParameterSpec(algo);
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};
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return namedSpec;
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}
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private static Key[] manipulateKey(String provider, String algo, int type,
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Key key, NamedParameterSpec namedSpec)
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throws NoSuchAlgorithmException, InvalidKeySpecException,
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NoSuchProviderException, InvalidKeyException {
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KeyFactory kf = KeyFactory.getInstance(algo, provider);
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switch (type) {
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case PUBLIC_KEY:
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return new Key[]{
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kf.generatePublic(new X509EncodedKeySpec(key.getEncoded())),
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kf.generatePublic(kf.getKeySpec(
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key, EdECPublicKeySpec.class)),
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kf.generatePublic(new EdECPublicKeySpec(namedSpec,
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((EdECPublicKey) key).getPoint())),
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kf.translateKey(key)
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};
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case PRIVATE_KEY:
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return new Key[]{
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kf.generatePrivate(new PKCS8EncodedKeySpec(key.getEncoded())),
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kf.generatePrivate(
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kf.getKeySpec(key, EdECPrivateKeySpec.class)),
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kf.generatePrivate(new EdECPrivateKeySpec(namedSpec,
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((EdECPrivateKey) key).getBytes().get())),
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kf.translateKey(key)
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};
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}
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throw new RuntimeException("We shouldn't reach here");
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}
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/**
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* Basic PrivateKey Test cases
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*/
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private static void testPrivateKey(EdECPrivateKey orig,
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EdECPrivateKey generated, int size) {
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equals(orig.getBytes().get().length * 8, size);
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equals(generated.getBytes().get().length * 8, size);
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equals(orig.getBytes().get(), generated.getBytes().get());
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equals(orig.getFormat(), generated.getFormat());
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equals(orig.getEncoded(), generated.getEncoded());
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equals(((NamedParameterSpec) orig.getParams()).getName(),
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((NamedParameterSpec) generated.getParams()).getName());
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}
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/**
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* Basic PublicKey Test cases
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*/
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private static void testPublicKey(EdECPublicKey orig,
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EdECPublicKey generated) {
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equals(orig.getPoint().getY(), generated.getPoint().getY());
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equals(orig.getPoint().isXOdd(), generated.getPoint().isXOdd());
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equals(orig.getFormat(), generated.getFormat());
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equals(orig.getEncoded(), generated.getEncoded());
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equals(((NamedParameterSpec) orig.getParams()).getName(),
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((NamedParameterSpec) generated.getParams()).getName());
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}
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private static void equals(Object actual, Object expected) {
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if (!actual.equals(expected)) {
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throw new RuntimeException(String.format("Actual: %s, Expected: %s",
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actual, expected));
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}
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}
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private static void equals(byte[] actual, byte[] expected) {
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if (!Arrays.equals(actual, expected)) {
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throw new RuntimeException(String.format("Actual array: %s, "
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+ "Expected array:%s", HexFormat.of().withUpperCase().formatHex(actual),
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HexFormat.of().withUpperCase().formatHex(expected)));
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}
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}
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}
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