1 /* 2 * Copyright (C) 2012 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.content.pm; 18 19 import android.test.AndroidTestCase; 20 21 import java.io.ByteArrayInputStream; 22 import java.util.Arrays; 23 24 import javax.crypto.Mac; 25 import javax.crypto.SecretKey; 26 import javax.crypto.spec.SecretKeySpec; 27 28 import libcore.io.Streams; 29 30 public class MacAuthenticatedInputStreamTest extends AndroidTestCase { 31 32 private static final SecretKey HMAC_KEY_1 = new SecretKeySpec("test_key_1".getBytes(), "HMAC"); 33 34 private static final byte[] TEST_STRING_1 = "Hello, World!".getBytes(); 35 36 /** 37 * Generated with: 38 * 39 * echo -n 'Hello, World!' | openssl dgst -hmac 'test_key_1' -binary -sha1 | recode ..//x1 | 40 * sed 's/0x/(byte) 0x/g' 41 */ 42 private static final byte[] TEST_STRING_1_MAC = { 43 (byte) 0x29, (byte) 0xB1, (byte) 0x87, (byte) 0x6B, (byte) 0xFE, (byte) 0x83, 44 (byte) 0x96, (byte) 0x51, (byte) 0x61, (byte) 0x02, (byte) 0xAF, (byte) 0x7B, 45 (byte) 0xBA, (byte) 0x05, (byte) 0xE6, (byte) 0xA4, (byte) 0xAB, (byte) 0x36, 46 (byte) 0x18, (byte) 0x02 47 }; 48 49 /** 50 * Same as TEST_STRING_1_MAC but with the first byte as 0x28 instead of 51 * 0x29. 52 */ 53 private static final byte[] TEST_STRING_1_MAC_BROKEN = { 54 (byte) 0x28, (byte) 0xB1, (byte) 0x87, (byte) 0x6B, (byte) 0xFE, (byte) 0x83, 55 (byte) 0x96, (byte) 0x51, (byte) 0x61, (byte) 0x02, (byte) 0xAF, (byte) 0x7B, 56 (byte) 0xBA, (byte) 0x05, (byte) 0xE6, (byte) 0xA4, (byte) 0xAB, (byte) 0x36, 57 (byte) 0x18, (byte) 0x02 58 }; 59 60 private ByteArrayInputStream mTestStream1; 61 62 @Override 63 protected void setUp() throws Exception { 64 super.setUp(); 65 66 mTestStream1 = new ByteArrayInputStream(TEST_STRING_1); 67 } 68 69 public void testString1Authenticate_Success() throws Exception { 70 Mac mac = Mac.getInstance("HMAC-SHA1"); 71 mac.init(HMAC_KEY_1); 72 73 MacAuthenticatedInputStream is = new MacAuthenticatedInputStream(mTestStream1, mac); 74 75 assertTrue(Arrays.equals(TEST_STRING_1, Streams.readFully(is))); 76 77 assertTrue(is.isTagEqual(TEST_STRING_1_MAC)); 78 } 79 80 public void testString1Authenticate_WrongTag_Failure() throws Exception { 81 Mac mac = Mac.getInstance("HMAC-SHA1"); 82 mac.init(HMAC_KEY_1); 83 84 MacAuthenticatedInputStream is = new MacAuthenticatedInputStream(mTestStream1, mac); 85 86 assertTrue(Arrays.equals(TEST_STRING_1, Streams.readFully(is))); 87 88 assertFalse(is.isTagEqual(TEST_STRING_1_MAC_BROKEN)); 89 } 90 91 public void testString1Authenticate_NullTag_Failure() throws Exception { 92 Mac mac = Mac.getInstance("HMAC-SHA1"); 93 mac.init(HMAC_KEY_1); 94 95 MacAuthenticatedInputStream is = new MacAuthenticatedInputStream(mTestStream1, mac); 96 97 assertTrue(Arrays.equals(TEST_STRING_1, Streams.readFully(is))); 98 99 assertFalse(is.isTagEqual(null)); 100 } 101 102 public void testString1Authenticate_ReadSingleByte_Success() throws Exception { 103 Mac mac = Mac.getInstance("HMAC-SHA1"); 104 mac.init(HMAC_KEY_1); 105 106 MacAuthenticatedInputStream is = new MacAuthenticatedInputStream(mTestStream1, mac); 107 108 int numRead = 0; 109 while (is.read() != -1) { 110 numRead++; 111 112 if (numRead > TEST_STRING_1.length) { 113 fail("read too many bytes"); 114 } 115 } 116 assertEquals(TEST_STRING_1.length, numRead); 117 118 assertTrue(is.isTagEqual(TEST_STRING_1_MAC)); 119 } 120 } 121
