| /* |
| * 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.ikev2; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| |
| import com.android.ike.ikev2.message.TestUtils; |
| |
| import org.junit.Test; |
| |
| public final class SaRecordTest { |
| private static final String IKE_INIT_SPI = "5F54BF6D8B48E6E1"; |
| private static final String IKE_RESP_SPI = "909232B3D1EDCB5C"; |
| |
| private static final String IKE_NONCE_INIT_HEX_STRING = |
| "C39B7F368F4681B89FA9B7BE6465ABD7C5F68B6ED5D3B4C72CB4240EB5C46412"; |
| private static final String IKE_NONCE_RESP_HEX_STRING = |
| "9756112CA539F5C25ABACC7EE92B73091942A9C06950F98848F1AF1694C4DDFF"; |
| |
| private static final String IKE_SHARED_DH_KEY_HEX_STRING = |
| "C14155DEA40056BD9C76FB4819687B7A397582F4CD5AFF4B" |
| + "8F441C56E0C08C84234147A0BA249A555835A048E3CA2980" |
| + "7D057A61DD26EEFAD9AF9C01497005E52858E29FB42EB849" |
| + "6731DF96A11CCE1F51137A9A1B900FA81AEE7898E373D4E4" |
| + "8B899BBECA091314ECD4B6E412EF4B0FEF798F54735F3180" |
| + "7424A318287F20E8"; |
| |
| private static final String IKE_SKEYSEED_HEX_STRING = |
| "8C42F3B1F5F81C7BAAC5F33E9A4F01987B2F9657"; |
| private static final String IKE_SK_D_HEX_STRING = "C86B56EFCF684DCC2877578AEF3137167FE0EBF6"; |
| private static final String IKE_SK_AUTH_INIT_HEX_STRING = |
| "554FBF5A05B7F511E05A30CE23D874DB9EF55E51"; |
| private static final String IKE_SK_AUTH_RESP_HEX_STRING = |
| "36D83420788337CA32ECAA46892C48808DCD58B1"; |
| private static final String IKE_SK_ENCR_INIT_HEX_STRING = "5CBFD33F75796C0188C4A3A546AEC4A1"; |
| private static final String IKE_SK_ENCR_RESP_HEX_STRING = "C33B35FCF29514CD9D8B4A695E1A816E"; |
| private static final String IKE_SK_PRF_INIT_HEX_STRING = |
| "094787780EE466E2CB049FA327B43908BC57E485"; |
| private static final String IKE_SK_PRF_RESP_HEX_STRING = |
| "A30E6B08BE56C0E6BFF4744143C75219299E1BEB"; |
| private static final String IKE_KEY_MAT = |
| IKE_SK_D_HEX_STRING |
| + IKE_SK_AUTH_INIT_HEX_STRING |
| + IKE_SK_AUTH_RESP_HEX_STRING |
| + IKE_SK_ENCR_INIT_HEX_STRING |
| + IKE_SK_ENCR_RESP_HEX_STRING |
| + IKE_SK_PRF_INIT_HEX_STRING |
| + IKE_SK_PRF_RESP_HEX_STRING; |
| |
| private static final int IKE_AUTH_ALGO_KEY_LEN = 20; |
| private static final int IKE_ENCR_ALGO_KEY_LEN = 16; |
| private static final int IKE_PRF_KEY_LEN = 20; |
| private static final int IKE_SK_D_KEY_LEN = IKE_PRF_KEY_LEN; |
| |
| private static final String FIRST_CHILD_ENCR_INIT_HEX_STRING = |
| "1B865CEA6E2C23973E8C5452ADC5CD7D"; |
| private static final String FIRST_CHILD_ENCR_RESP_HEX_STRING = |
| "5E82FEDACC6DCB0756DDD7553907EBD1"; |
| private static final String FIRST_CHILD_AUTH_INIT_HEX_STRING = |
| "A7A5A44F7EF4409657206C7DC52B7E692593B51E"; |
| private static final String FIRST_CHILD_AUTH_RESP_HEX_STRING = |
| "CDE612189FD46DE870FAEC04F92B40B0BFDBD9E1"; |
| private static final String FIRST_CHILD_KEY_MAT = |
| FIRST_CHILD_ENCR_INIT_HEX_STRING |
| + FIRST_CHILD_AUTH_INIT_HEX_STRING |
| + FIRST_CHILD_ENCR_RESP_HEX_STRING |
| + FIRST_CHILD_AUTH_RESP_HEX_STRING; |
| |
| private static final int FIRST_CHILD_AUTH_ALGO_KEY_LEN = 20; |
| private static final int FIRST_CHILD_ENCR_ALGO_KEY_LEN = 16; |
| |
| private static final String PRF_HMAC_SHA1_ALGO_NAME = "HmacSHA1"; |
| |
| @Test |
| public void testCalculateSKeySeed() throws Exception { |
| byte[] nonceInit = TestUtils.hexStringToByteArray(IKE_NONCE_INIT_HEX_STRING); |
| byte[] nonceResp = TestUtils.hexStringToByteArray(IKE_NONCE_RESP_HEX_STRING); |
| byte[] sharedDhKey = TestUtils.hexStringToByteArray(IKE_SHARED_DH_KEY_HEX_STRING); |
| |
| byte[] calculatedSKeySeed = |
| SaRecord.generateSKeySeed( |
| PRF_HMAC_SHA1_ALGO_NAME, nonceInit, nonceResp, sharedDhKey); |
| |
| byte[] expectedSKeySeed = TestUtils.hexStringToByteArray(IKE_SKEYSEED_HEX_STRING); |
| assertArrayEquals(expectedSKeySeed, calculatedSKeySeed); |
| } |
| |
| @Test |
| public void testSignWithPrfPlusForIke() throws Exception { |
| byte[] prfKey = TestUtils.hexStringToByteArray(IKE_SKEYSEED_HEX_STRING); |
| byte[] prfData = |
| TestUtils.hexStringToByteArray( |
| IKE_NONCE_INIT_HEX_STRING |
| + IKE_NONCE_RESP_HEX_STRING |
| + IKE_INIT_SPI |
| + IKE_RESP_SPI); |
| int keyMaterialLen = |
| IKE_SK_D_KEY_LEN |
| + IKE_AUTH_ALGO_KEY_LEN * 2 |
| + IKE_ENCR_ALGO_KEY_LEN * 2 |
| + IKE_PRF_KEY_LEN * 2; |
| |
| byte[] calculatedKeyMat = |
| SaRecord.generateKeyMat(PRF_HMAC_SHA1_ALGO_NAME, prfKey, prfData, keyMaterialLen); |
| |
| byte[] expectedKeyMat = TestUtils.hexStringToByteArray(IKE_KEY_MAT); |
| assertArrayEquals(expectedKeyMat, calculatedKeyMat); |
| } |
| |
| @Test |
| public void testSignWithPrfPlusForFirstChild() throws Exception { |
| byte[] prfKey = TestUtils.hexStringToByteArray(IKE_SK_D_HEX_STRING); |
| byte[] prfData = |
| TestUtils.hexStringToByteArray( |
| IKE_NONCE_INIT_HEX_STRING + IKE_NONCE_RESP_HEX_STRING); |
| int keyMaterialLen = FIRST_CHILD_AUTH_ALGO_KEY_LEN * 2 + FIRST_CHILD_ENCR_ALGO_KEY_LEN * 2; |
| |
| byte[] calculatedKeyMat = |
| SaRecord.generateKeyMat(PRF_HMAC_SHA1_ALGO_NAME, prfKey, prfData, keyMaterialLen); |
| |
| byte[] expectedKeyMat = TestUtils.hexStringToByteArray(FIRST_CHILD_KEY_MAT); |
| assertArrayEquals(expectedKeyMat, calculatedKeyMat); |
| } |
| } |