| /* |
| * Copyright (c) 2003, 2012, 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 4923484 |
| * @summary encryption/decryption test for using OAEPParameterSpec. |
| * @author Valerie Peng |
| */ |
| |
| import java.util.*; |
| |
| import java.security.*; |
| import java.security.spec.MGF1ParameterSpec; |
| import javax.crypto.*; |
| import javax.crypto.spec.PSource; |
| import javax.crypto.spec.OAEPParameterSpec; |
| |
| public class TestOAEPWithParams { |
| |
| private static Provider cp; |
| |
| private static PrivateKey privateKey; |
| |
| private static PublicKey publicKey; |
| |
| private static Random random = new Random(); |
| |
| private static String MD[] = { |
| "MD5", "SHA1", "SHA-224", "SHA-256" |
| }; |
| private static int DATA_LENGTH[] = { |
| 62, 54, 34, 30 |
| }; |
| public static void main(String[] args) throws Exception { |
| long start = System.currentTimeMillis(); |
| cp = Security.getProvider("SunJCE"); |
| System.out.println("Testing provider " + cp.getName() + "..."); |
| Provider kfp = Security.getProvider("SunRsaSign"); |
| KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA", kfp); |
| kpg.initialize(768); |
| KeyPair kp = kpg.generateKeyPair(); |
| privateKey = kp.getPrivate(); |
| publicKey = kp.getPublic(); |
| |
| for (int i = 0; i < MD.length; i++) { |
| // basic test using MD5 |
| testEncryptDecrypt(MD[i], DATA_LENGTH[i]); |
| } |
| |
| long stop = System.currentTimeMillis(); |
| System.out.println("Done (" + (stop - start) + " ms)."); |
| } |
| |
| private static void testEncryptDecrypt(String hashAlg, int dataLength) |
| throws Exception { |
| System.out.println("Testing OAEP with hash " + hashAlg + ", " + dataLength + " bytes"); |
| Cipher c = Cipher.getInstance("RSA/ECB/OAEPwith" + hashAlg + |
| "andMGF1Padding", cp); |
| byte[] pSrc1 = { (byte) 0x01, (byte) 0x01, (byte) 0x01, (byte) 0x01, |
| (byte) 0x02, (byte) 0x02, (byte) 0x02, (byte) 0x02 |
| }; |
| byte[] pSrc2 = { (byte) 0x01, (byte) 0x01, (byte) 0x01, (byte) 0x01, |
| (byte) 0x02, (byte) 0x02, (byte) 0x03, (byte) 0x04 |
| }; |
| OAEPParameterSpec spec1 = new OAEPParameterSpec(hashAlg, |
| "MGF1", MGF1ParameterSpec.SHA1, new PSource.PSpecified(pSrc1)); |
| OAEPParameterSpec spec2 = new OAEPParameterSpec(hashAlg, |
| "MGF1", MGF1ParameterSpec.SHA1, new PSource.PSpecified(pSrc2)); |
| byte[] plainText = new byte[dataLength]; |
| byte[] cipherText, recovered; |
| // do encryption with parameters#1 |
| System.out.println("Testing with user-supplied parameters..."); |
| c.init(Cipher.ENCRYPT_MODE, publicKey, spec1); |
| cipherText = c.doFinal(plainText); |
| |
| // test#1: decrypt with parameters#1 |
| c.init(Cipher.DECRYPT_MODE, privateKey, spec1); |
| recovered = c.doFinal(cipherText); |
| if (Arrays.equals(plainText, recovered) == false) { |
| throw new Exception("Decrypted data does not match"); |
| } |
| |
| // test#2: decrypt without parameters |
| c.init(Cipher.DECRYPT_MODE, privateKey); |
| try { |
| recovered = c.doFinal(cipherText); |
| throw new Exception("Should throw BadPaddingException"); |
| } catch (BadPaddingException bpe) { |
| // expected |
| } |
| // test#3: decrypt with different parameters |
| c.init(Cipher.DECRYPT_MODE, privateKey, spec2); |
| try { |
| recovered = c.doFinal(cipherText); |
| throw new Exception("Should throw BadPaddingException"); |
| } catch (BadPaddingException bpe) { |
| // expected |
| } |
| // do encryption without parameters |
| System.out.println("Testing with cipher default parameters..."); |
| c.init(Cipher.ENCRYPT_MODE, publicKey); |
| cipherText = c.doFinal(plainText); |
| |
| // test#1: decrypt with parameters got from cipher |
| AlgorithmParameters params = c.getParameters(); |
| c.init(Cipher.DECRYPT_MODE, privateKey, params); |
| recovered = c.doFinal(cipherText); |
| if (Arrays.equals(plainText, recovered) == false) { |
| throw new Exception("Decrypted data does not match"); |
| } |
| |
| // test#2: decrypt without parameters |
| c.init(Cipher.DECRYPT_MODE, privateKey); |
| recovered = c.doFinal(cipherText); |
| if (Arrays.equals(plainText, recovered) == false) { |
| throw new Exception("Decrypted data does not match"); |
| } |
| |
| // test#3: decrypt with different parameters |
| c.init(Cipher.DECRYPT_MODE, privateKey, spec2); |
| try { |
| recovered = c.doFinal(cipherText); |
| throw new Exception("Should throw BadPaddingException"); |
| } catch (BadPaddingException bpe) { |
| // expected |
| } |
| } |
| } |