| /* |
| * Copyright (C) 2009 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package tests.targets.security; |
| |
| import dalvik.annotation.TestLevel; |
| import dalvik.annotation.TestTargetNew; |
| import dalvik.annotation.TestTargets; |
| |
| import junit.framework.TestCase; |
| |
| import java.security.NoSuchAlgorithmException; |
| import java.security.SecureRandom; |
| import java.util.Arrays; |
| public abstract class SecureRandomTest extends TestCase { |
| |
| |
| private final String algorithmName; |
| |
| private int counter=0; |
| |
| protected SecureRandomTest(String name) { |
| this.algorithmName = name; |
| } |
| |
| protected void setUp() throws Exception { |
| super.setUp(); |
| } |
| |
| @TestTargets({ |
| @TestTargetNew( |
| level=TestLevel.ADDITIONAL, |
| method="getInstance", |
| args={String.class} |
| ), |
| @TestTargetNew( |
| level=TestLevel.ADDITIONAL, |
| method="setSeed", |
| args={long.class} |
| ), |
| @TestTargetNew( |
| level=TestLevel.ADDITIONAL, |
| method="nextBytes", |
| args={byte[].class} |
| ), |
| @TestTargetNew( |
| level=TestLevel.COMPLETE, |
| method="method", |
| args={} |
| ) |
| }) |
| public void testSecureRandom() { |
| SecureRandom secureRandom1 = null; |
| try { |
| secureRandom1 = SecureRandom.getInstance(algorithmName); |
| } catch (NoSuchAlgorithmException e) { |
| fail(e.getMessage()); |
| } |
| |
| SecureRandom secureRandom2 = null; |
| try { |
| secureRandom2 = SecureRandom.getInstance(algorithmName); |
| } catch (NoSuchAlgorithmException e) { |
| fail(e.getMessage()); |
| } |
| |
| byte[] testRandom1 = getRandomBytes(secureRandom1); |
| byte[] testRandom2 = getRandomBytes(secureRandom2); |
| |
| assertFalse(Arrays.equals(testRandom1, testRandom2)); |
| |
| |
| } |
| |
| private byte[] getRandomBytes(SecureRandom random) { |
| byte[] randomData = new byte[64]; |
| |
| random.setSeed(System.currentTimeMillis()+counter); |
| counter++; |
| |
| random.nextBytes(randomData); |
| |
| return randomData; |
| } |
| } |