| /* |
| * Copyright (c) 2015, 2016, 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. |
| */ |
| import java.security.InvalidKeyException; |
| import java.security.Key; |
| import java.security.KeyFactory; |
| import java.security.KeyPair; |
| import java.security.KeyPairGenerator; |
| import java.security.NoSuchAlgorithmException; |
| import java.security.NoSuchProviderException; |
| import java.security.PrivateKey; |
| import java.security.PublicKey; |
| import java.security.Signature; |
| import java.security.SignatureException; |
| import java.security.interfaces.RSAPrivateKey; |
| import java.security.interfaces.RSAPublicKey; |
| import java.security.spec.InvalidKeySpecException; |
| import java.security.spec.PKCS8EncodedKeySpec; |
| import java.security.spec.RSAPrivateKeySpec; |
| import java.security.spec.RSAPublicKeySpec; |
| import java.security.spec.X509EncodedKeySpec; |
| import java.util.Arrays; |
| import java.util.stream.IntStream; |
| import static javax.crypto.Cipher.PRIVATE_KEY; |
| import static javax.crypto.Cipher.PUBLIC_KEY; |
| |
| /** |
| * @test |
| * @bug 8044199 |
| * @summary Create a signature for RSA and get its signed data. re-initiate |
| * the signature with the public key. The signature can be verified |
| * by acquired signed data. |
| * @run main SignatureTest 512 |
| * @run main SignatureTest 768 |
| * @run main SignatureTest 1024 |
| * @run main SignatureTest 2048 |
| * @run main/timeout=240 SignatureTest 4096 |
| * @run main/timeout=240 SignatureTest 5120 |
| * @run main/timeout=240 SignatureTest 6144 |
| */ |
| public class SignatureTest { |
| /** |
| * ALGORITHM name, fixed as RSA. |
| */ |
| private static final String KEYALG = "RSA"; |
| |
| /** |
| * JDK default RSA Provider. |
| */ |
| private static final String PROVIDER = "SunRsaSign"; |
| |
| /** |
| * How much times signature updated. |
| */ |
| private static final int UPDATE_TIMES_FIFTY = 50; |
| |
| /** |
| * How much times signature initial updated. |
| */ |
| private static final int UPDATE_TIMES_HUNDRED = 100; |
| |
| /** |
| * Signature algorithms to test |
| */ |
| private static final String[] SIGN_ALG = {"MD2withRSA", "MD5withRSA", |
| "SHA1withRSA", "SHA256withRSA"}; |
| |
| public static void main(String[] args) throws Exception { |
| int testSize = Integer.parseInt(args[0]); |
| |
| byte[] data = new byte[100]; |
| IntStream.range(0, data.length).forEach(j -> { |
| data[j] = (byte) j; |
| }); |
| |
| // create a key pair |
| KeyPair kpair = generateKeys(KEYALG, testSize); |
| Key[] privs = manipulateKey(PRIVATE_KEY, kpair.getPrivate()); |
| Key[] pubs = manipulateKey(PUBLIC_KEY, kpair.getPublic()); |
| // For signature algorithm, create and verify a signature |
| |
| Arrays.stream(privs).forEach(priv |
| -> Arrays.stream(pubs).forEach(pub |
| -> Arrays.stream(SIGN_ALG).forEach(testAlg -> { |
| try { |
| checkSignature(data, (PublicKey) pub, (PrivateKey) priv, |
| testAlg); |
| } catch (NoSuchAlgorithmException | InvalidKeyException | |
| SignatureException | NoSuchProviderException ex) { |
| throw new RuntimeException(ex); |
| } |
| } |
| ))); |
| |
| } |
| |
| private static KeyPair generateKeys(String keyalg, int size) |
| throws NoSuchAlgorithmException { |
| KeyPairGenerator kpg = KeyPairGenerator.getInstance(keyalg); |
| kpg.initialize(size); |
| return kpg.generateKeyPair(); |
| } |
| |
| private static Key[] manipulateKey(int type, Key key) |
| throws NoSuchAlgorithmException, InvalidKeySpecException, NoSuchProviderException { |
| KeyFactory kf = KeyFactory.getInstance(KEYALG, PROVIDER); |
| |
| switch (type) { |
| case PUBLIC_KEY: |
| try { |
| kf.getKeySpec(key, RSAPrivateKeySpec.class); |
| throw new RuntimeException("Expected InvalidKeySpecException " |
| + "not thrown"); |
| } catch (InvalidKeySpecException expected) { |
| } |
| |
| return new Key[]{ |
| kf.generatePublic(kf.getKeySpec(key, RSAPublicKeySpec.class)), |
| kf.generatePublic(new X509EncodedKeySpec(key.getEncoded())), |
| kf.generatePublic(new RSAPublicKeySpec( |
| ((RSAPublicKey) key).getModulus(), |
| ((RSAPublicKey) key).getPublicExponent())) |
| }; |
| case PRIVATE_KEY: |
| try { |
| kf.getKeySpec(key, RSAPublicKeySpec.class); |
| throw new RuntimeException("Expected InvalidKeySpecException" |
| + " not thrown"); |
| } catch (InvalidKeySpecException expected) { |
| } |
| return new Key[]{ |
| kf.generatePrivate(kf.getKeySpec(key, |
| RSAPrivateKeySpec.class)), |
| kf.generatePrivate(new PKCS8EncodedKeySpec( |
| key.getEncoded())), |
| kf.generatePrivate(new RSAPrivateKeySpec(((RSAPrivateKey) key).getModulus(), |
| ((RSAPrivateKey) key).getPrivateExponent())) |
| }; |
| } |
| throw new RuntimeException("We shouldn't reach here"); |
| } |
| |
| private static void checkSignature(byte[] data, PublicKey pub, |
| PrivateKey priv, String sigalg) throws NoSuchAlgorithmException, |
| InvalidKeyException, SignatureException, NoSuchProviderException { |
| Signature sig = Signature.getInstance(sigalg, PROVIDER); |
| sig.initSign(priv); |
| for (int i = 0; i < UPDATE_TIMES_HUNDRED; i++) { |
| sig.update(data); |
| } |
| byte[] signedData = sig.sign(); |
| |
| // Make sure signature verifies with original data |
| sig.initVerify(pub); |
| for (int i = 0; i < UPDATE_TIMES_HUNDRED; i++) { |
| sig.update(data); |
| } |
| if (!sig.verify(signedData)) { |
| throw new RuntimeException("Failed to verify " + sigalg |
| + " signature"); |
| } |
| |
| // Make sure signature does NOT verify when the original data |
| // has changed |
| sig.initVerify(pub); |
| for (int i = 0; i < UPDATE_TIMES_FIFTY; i++) { |
| sig.update(data); |
| } |
| |
| if (sig.verify(signedData)) { |
| throw new RuntimeException("Failed to detect bad " + sigalg |
| + " signature"); |
| } |
| } |
| } |