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/*
* Copyright (C) 2018 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.message;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import com.android.ike.TestUtils;
import com.android.ike.ikev2.SaProposal;
import com.android.ike.ikev2.crypto.IkeMacPrf;
import com.android.ike.ikev2.exceptions.AuthenticationFailedException;
import com.android.ike.ikev2.message.IkeSaPayload.PrfTransform;
import org.junit.Before;
import org.junit.Test;
public final class IkeAuthPayloadTest {
private static final String PSK_AUTH_PAYLOAD_HEX_STRING =
"02000000df7c038aefaaa32d3f44b228b52a332744dfb2c1";
private static final String PSK_AUTH_PAYLOAD_SIGNATURE_HEX_STRING =
"df7c038aefaaa32d3f44b228b52a332744dfb2c1";
private static final String PSK_ID_PAYLOAD_HEX_STRING = "010000000a50500d";
private static final String PSK_SKP_HEX_STRING = "094787780EE466E2CB049FA327B43908BC57E485";
private static final String PSK_SIGNED_OCTETS_APPENDIX_HEX_STRING =
"D83B20CC6A0932B2A7CEF26E4020ABAAB64F0C6A";
private static final String PSK_IKE_INIT_REQUEST_HEX_STRING =
"5f54bf6d8b48e6e1000000000000000021202208"
+ "0000000000000150220000300000002c01010004"
+ "0300000c0100000c800e00800300000803000002"
+ "0300000804000002000000080200000228000088"
+ "00020000b4a2faf4bb54878ae21d638512ece55d"
+ "9236fc5046ab6cef82220f421f3ce6361faf3656"
+ "4ecb6d28798a94aad7b2b4b603ddeaaa5630adb9"
+ "ece8ac37534036040610ebdd92f46bef84f0be7d"
+ "b860351843858f8acf87056e272377f70c9f2d81"
+ "e29c7b0ce4f291a3a72476bb0b278fd4b7b0a4c2"
+ "6bbeb08214c707137607958729000024c39b7f36"
+ "8f4681b89fa9b7be6465abd7c5f68b6ed5d3b4c7"
+ "2cb4240eb5c464122900001c00004004e54f73b7"
+ "d83f6beb881eab2051d8663f421d10b02b00001c"
+ "00004005d915368ca036004cb578ae3e3fb26850"
+ "9aeab19000000020699369228741c6d4ca094c93"
+ "e242c9de19e7b7c60000000500000500";
private static final String PSK_NONCE_RESP_HEX_STRING =
"9756112ca539f5c25abacc7ee92b73091942a9c06950f98848f1af1694c4ddff";
private static final String PSK_INIT_SIGNED_OCTETS =
"5F54BF6D8B48E6E1000000000000000021202208"
+ "0000000000000150220000300000002C01010004"
+ "0300000C0100000C800E00800300000803000002"
+ "0300000804000002000000080200000228000088"
+ "00020000B4A2FAF4BB54878AE21D638512ECE55D"
+ "9236FC5046AB6CEF82220F421F3CE6361FAF3656"
+ "4ECB6D28798A94AAD7B2B4B603DDEAAA5630ADB9"
+ "ECE8AC37534036040610EBDD92F46BEF84F0BE7D"
+ "B860351843858F8ACF87056E272377F70C9F2D81"
+ "E29C7B0CE4F291A3A72476BB0B278FD4B7B0A4C2"
+ "6BBEB08214C707137607958729000024C39B7F36"
+ "8F4681B89FA9B7BE6465ABD7C5F68B6ED5D3B4C7"
+ "2CB4240EB5C464122900001C00004004E54F73B7"
+ "D83F6BEB881EAB2051D8663F421D10B02B00001C"
+ "00004005D915368CA036004CB578AE3E3FB26850"
+ "9AEAB19000000020699369228741C6D4CA094C93"
+ "E242C9DE19E7B7C600000005000005009756112C"
+ "A539F5C25ABACC7EE92B73091942A9C06950F988"
+ "48F1AF1694C4DDFFD83B20CC6A0932B2A7CEF26E"
+ "4020ABAAB64F0C6A";
private static final int AUTH_METHOD_POSITION = 0;
private IkeMacPrf mIkeHmacSha1Prf;
@Before
public void setUp() throws Exception {
mIkeHmacSha1Prf =
IkeMacPrf.create(
new PrfTransform(SaProposal.PSEUDORANDOM_FUNCTION_HMAC_SHA1),
IkeMessage.getSecurityProvider());
}
@Test
public void testDecodeIkeAuthPayload() throws Exception {
byte[] inputPacket = TestUtils.hexStringToByteArray(PSK_AUTH_PAYLOAD_HEX_STRING);
IkeAuthPayload payload = IkeAuthPayload.getIkeAuthPayload(false, inputPacket);
assertEquals(IkeAuthPayload.AUTH_METHOD_PRE_SHARED_KEY, payload.authMethod);
assertTrue(payload instanceof IkeAuthPskPayload);
byte[] expectedSignature =
TestUtils.hexStringToByteArray(PSK_AUTH_PAYLOAD_SIGNATURE_HEX_STRING);
assertArrayEquals(expectedSignature, ((IkeAuthPskPayload) payload).signature);
}
@Test
public void testDecodeIkeAuthPayloadWithUnsupportedMethod() throws Exception {
byte[] inputPacket = TestUtils.hexStringToByteArray(PSK_AUTH_PAYLOAD_HEX_STRING);
inputPacket[AUTH_METHOD_POSITION] = 0;
try {
IkeAuthPayload payload = IkeAuthPayload.getIkeAuthPayload(false, inputPacket);
fail("Expected Exception: authentication method is not supported");
} catch (AuthenticationFailedException e) {
}
}
@Test
public void testGetSignedOctets() throws Exception {
byte[] skpBytes = TestUtils.hexStringToByteArray(PSK_SKP_HEX_STRING);
byte[] idBytes = TestUtils.hexStringToByteArray(PSK_ID_PAYLOAD_HEX_STRING);
byte[] ikeInitRequest = TestUtils.hexStringToByteArray(PSK_IKE_INIT_REQUEST_HEX_STRING);
byte[] nonceResp = TestUtils.hexStringToByteArray(PSK_NONCE_RESP_HEX_STRING);
byte[] calculatedBytes =
IkeAuthPayload.getSignedOctets(
ikeInitRequest, nonceResp, idBytes, mIkeHmacSha1Prf, skpBytes);
byte[] expectedBytes = TestUtils.hexStringToByteArray(PSK_INIT_SIGNED_OCTETS);
}
}
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