| /* |
| * 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.eap.crypto; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.fail; |
| |
| import com.android.ike.TestUtils; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| /** |
| * The test vectors in this file come directly from NIST: |
| * |
| * <p>The original link to the test vectors was here: |
| * http://csrc.nist.gov/publications/fips/fips186-2/fips186-2-change1.pdf |
| * |
| * <p>But has since been removed. A cached copy was found here: |
| * https://web.archive.org/web/20041031202951/http://www.csrc.nist.gov/CryptoToolkit/dss/Examples- |
| * 1024bit.pdf |
| */ |
| public final class Fips186_2PrfTest { |
| private static final String SEED = "bd029bbe7f51960bcf9edb2b61f06f0feb5a38b6"; |
| private static final String EXPECTED_RESULT = |
| "2070b3223dba372fde1c0ffc7b2e3b498b2606143c6c18bacb0f6c55babb13788e20d737a3275116"; |
| |
| private Fips186_2Prf mFipsPrf; |
| |
| @Before |
| public void setUp() { |
| mFipsPrf = new Fips186_2Prf(); |
| } |
| |
| @Test |
| public void testFips186_2Prf_Invalid_Seed() throws Exception { |
| try { |
| mFipsPrf.getRandom(new byte[0], 40); |
| fail("Expected exception for invalid length seed"); |
| } catch (IllegalArgumentException expected) { |
| } |
| } |
| |
| @Test |
| public void testFips186_2Prf() throws Exception { |
| byte[] seed = TestUtils.hexStringToByteArray(SEED); |
| byte[] actual = mFipsPrf.getRandom(seed, 40); |
| |
| assertArrayEquals(TestUtils.hexStringToByteArray(EXPECTED_RESULT), actual); |
| } |
| |
| // TODO: (b/136177143) Add more test vectors |
| } |