| /* |
| * Copyright (C) 2019 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 com.android.ike.eap.crypto; |
| |
| import static com.android.ike.TestUtils.hexStringToByteArray; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| |
| import org.junit.Test; |
| |
| /** |
| * Inputs taken from RFC 2759 Section 9.3. |
| * |
| * @see <a href="https://tools.ietf.org/html/rfc2759#section-9.3">RFC 2759 Section 9.3, Examples of |
| * DES Key Generation</a> |
| */ |
| public class ParityBitUtilTest { |
| private static final byte[] INPUT_BYTES = {(byte) 0xFC, (byte) 0x0E, (byte) 0x7E, (byte) 0x37}; |
| private static final byte[] OUTPUT_BYTES = {(byte) 0xFD, (byte) 0x0E, (byte) 0x7F, (byte) 0x37}; |
| |
| private static final String[] RAW_KEYS = {"FC156AF7EDCD6C", "0EDDE3337D427F"}; |
| private static final long[] RAW_KEY_LONGS = {0xFC156AF7EDCD6CL, 0xEDDE3337D427FL}; |
| private static final String[] PARITY_CORRECTED_KEYS = {"FD0B5B5E7F6E34D9", "0E6E796737EA08FE"}; |
| |
| @Test |
| public void testGetByteWithParityBit() { |
| for (int i = 0; i < INPUT_BYTES.length; i++) { |
| assertEquals(OUTPUT_BYTES[i], ParityBitUtil.getByteWithParityBit(INPUT_BYTES[i])); |
| } |
| } |
| |
| @Test |
| public void testByteArrayToLong() { |
| for (int i = 0; i < RAW_KEYS.length; i++) { |
| byte[] rawKey = hexStringToByteArray(RAW_KEYS[i]); |
| |
| assertEquals(RAW_KEY_LONGS[i], ParityBitUtil.byteArrayToLong(rawKey)); |
| } |
| } |
| |
| @Test |
| public void testAddParityBits() { |
| for (int i = 0; i < RAW_KEYS.length; i++) { |
| byte[] rawKey = hexStringToByteArray(RAW_KEYS[i]); |
| byte[] parityCorrectedKey = hexStringToByteArray(PARITY_CORRECTED_KEYS[i]); |
| |
| assertArrayEquals(parityCorrectedKey, ParityBitUtil.addParityBits(rawKey)); |
| } |
| } |
| } |