1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.core; 18 19 import android.test.suitebuilder.annotation.SmallTest; 20 import java.security.MessageDigest; 21 import junit.framework.TestCase; 22 23 /** 24 * Tests SHA1 message digest algorithm. 25 */ 26 public class Sha1Test extends TestCase { 27 class TestData { 28 private String input; 29 private String result; 30 31 public TestData(String i, String r) { 32 input = i; 33 result = r; 34 } 35 } 36 37 TestData[] mTestData = new TestData[]{ 38 new TestData("abc", "a9993e364706816aba3e25717850c26c9cd0d89d"), 39 new TestData("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", 40 "84983e441c3bd26ebaae4aa1f95129e5e54670f1") 41 }; 42 43 @SmallTest 44 public void testSha1() throws Exception { 45 MessageDigest digest = MessageDigest.getInstance("SHA-1"); 46 47 int numTests = mTestData.length; 48 for (int i = 0; i < numTests; i++) { 49 digest.update(mTestData[i].input.getBytes()); 50 byte[] hash = digest.digest(); 51 String encodedHash = encodeHex(hash); 52 assertEquals(encodedHash, mTestData[i].result); 53 } 54 } 55 56 private static String encodeHex(byte[] bytes) { 57 StringBuffer hex = new StringBuffer(bytes.length * 2); 58 59 for (int i = 0; i < bytes.length; i++) { 60 if (((int) bytes[i] & 0xff) < 0x10) { 61 hex.append("0"); 62 } 63 hex.append(Integer.toString((int) bytes[i] & 0xff, 16)); 64 } 65 66 return hex.toString(); 67 } 68 } 69 70
