| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.kerby.kerberos.kerb.crypto; |
| |
| import org.apache.kerby.kerberos.kerb.type.base.CheckSum; |
| import org.apache.kerby.kerberos.kerb.type.base.CheckSumType; |
| import org.apache.kerby.kerberos.kerb.type.base.EncryptionKey; |
| import org.apache.kerby.kerberos.kerb.type.base.EncryptionType; |
| import org.apache.kerby.kerberos.kerb.type.base.KeyUsage; |
| import org.apache.kerby.util.HexUtil; |
| import org.junit.Test; |
| |
| import static org.assertj.core.api.Assertions.fail; |
| |
| /** |
| * Only used to test for rsa-md4-des and rsa-md5-des |
| */ |
| public class CheckSumTest { |
| |
| static class CksumTest { |
| CheckSumType cksumType; |
| String plainText; |
| String knownChecksum; |
| |
| CksumTest(CheckSumType cksumType, String plainText, String knownChecksum) { |
| this.cksumType = cksumType; |
| this.plainText = plainText; |
| this.knownChecksum = knownChecksum; |
| } |
| } |
| |
| static CksumTest[] testCases = new CksumTest[] { |
| new CksumTest( |
| CheckSumType.RSA_MD4_DES, |
| "this is a test", |
| "e3f76a07f3401e3536b43a3f54226c39422c35682c354835" |
| ), |
| new CksumTest( |
| CheckSumType.RSA_MD5_DES, |
| "this is a test", |
| "e3f76a07f3401e351143ee6f4c09be1edb4264d55015db53" |
| ) |
| }; |
| |
| static final byte[] TESTKEY = {(byte) 0x45, (byte) 0x01, (byte) 0x49, (byte) 0x61, (byte) 0x58, |
| (byte) 0x19, (byte) 0x1a, (byte) 0x3d}; |
| |
| @Test |
| public void testCheckSums() { |
| for (CksumTest tc : testCases) { |
| try { |
| testWith(tc); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| } |
| |
| private void testWith(CksumTest testCase) throws Exception { |
| byte[] knownChecksum = HexUtil.hex2bytes(testCase.knownChecksum); |
| byte[] plainData = testCase.plainText.getBytes(); |
| |
| if (!CheckSumHandler.isImplemented(testCase.cksumType)) { |
| fail("Checksum type not supported yet: " |
| + testCase.cksumType.getName()); |
| return; |
| } |
| |
| EncryptionKey key = new EncryptionKey(EncryptionType.DES_CBC_CRC, TESTKEY); |
| |
| CheckSum newCksum = CheckSumHandler.checksumWithKey(testCase.cksumType, |
| plainData, key.getKeyData(), KeyUsage.NONE); |
| |
| if (!CheckSumHandler.verifyWithKey(newCksum, plainData, key.getKeyData(), KeyUsage.NONE)) { |
| fail("Checksum verifying failed for " + testCase.cksumType.getName()); |
| } |
| |
| // corrupt and verify again |
| byte[] cont = newCksum.getChecksum(); |
| cont[0]++; |
| newCksum.setChecksum(cont); |
| if (CheckSumHandler.verifyWithKey(newCksum, plainData, key.getKeyData(), KeyUsage.NONE)) { |
| fail("Checksum verifying failed with corrupt data for " + testCase.cksumType.getName()); |
| } |
| |
| CheckSum knwnCksum = new CheckSum(testCase.cksumType, knownChecksum); |
| if (!CheckSumHandler.verifyWithKey(knwnCksum, plainData, key.getKeyData(), KeyUsage.NONE)) { |
| fail("Checksum verifying failed with known checksum for " + testCase.cksumType.getName()); |
| } |
| } |
| } |