| /* |
| * 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.cassandra.security; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.RandomAccessFile; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.FileChannel; |
| import java.util.HashMap; |
| import java.util.Random; |
| import javax.crypto.BadPaddingException; |
| import javax.crypto.Cipher; |
| import javax.crypto.IllegalBlockSizeException; |
| import javax.crypto.ShortBufferException; |
| |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import org.apache.cassandra.config.DatabaseDescriptor; |
| import org.apache.cassandra.config.TransparentDataEncryptionOptions; |
| import org.apache.cassandra.io.compress.ICompressor; |
| import org.apache.cassandra.io.compress.LZ4Compressor; |
| import org.apache.cassandra.io.util.RandomAccessReader; |
| |
| public class EncryptionUtilsTest |
| { |
| @BeforeClass |
| public static void initDD() |
| { |
| DatabaseDescriptor.daemonInitialization(); |
| } |
| |
| final Random random = new Random(); |
| ICompressor compressor; |
| TransparentDataEncryptionOptions tdeOptions; |
| |
| @Before |
| public void setup() |
| { |
| compressor = LZ4Compressor.create(new HashMap<>()); |
| tdeOptions = EncryptionContextGenerator.createEncryptionOptions(); |
| } |
| |
| @Test |
| public void compress() throws IOException |
| { |
| byte[] buf = new byte[(1 << 13) - 13]; |
| random.nextBytes(buf); |
| ByteBuffer compressedBuffer = EncryptionUtils.compress(ByteBuffer.wrap(buf), ByteBuffer.allocate(0), true, compressor); |
| ByteBuffer uncompressedBuffer = EncryptionUtils.uncompress(compressedBuffer, ByteBuffer.allocate(0), true, compressor); |
| Assert.assertArrayEquals(buf, uncompressedBuffer.array()); |
| } |
| |
| @Test |
| public void encrypt() throws BadPaddingException, ShortBufferException, IllegalBlockSizeException, IOException |
| { |
| byte[] buf = new byte[(1 << 12) - 7]; |
| random.nextBytes(buf); |
| |
| // encrypt |
| CipherFactory cipherFactory = new CipherFactory(tdeOptions); |
| Cipher encryptor = cipherFactory.getEncryptor(tdeOptions.cipher, tdeOptions.key_alias); |
| |
| File f = File.createTempFile("commitlog-enc-utils-", ".tmp"); |
| f.deleteOnExit(); |
| FileChannel channel = new RandomAccessFile(f, "rw").getChannel(); |
| EncryptionUtils.encryptAndWrite(ByteBuffer.wrap(buf), channel, true, encryptor); |
| channel.close(); |
| |
| // decrypt |
| Cipher decryptor = cipherFactory.getDecryptor(tdeOptions.cipher, tdeOptions.key_alias, encryptor.getIV()); |
| ByteBuffer decryptedBuffer = EncryptionUtils.decrypt(RandomAccessReader.open(f), ByteBuffer.allocate(0), true, decryptor); |
| |
| // normally, we'd just call BB.array(), but that gives you the *entire* backing array, not with any of the offsets (position,limit) applied. |
| // thus, just for this test, we copy the array and perform an array-level comparison with those offsets |
| decryptedBuffer.limit(buf.length); |
| byte[] b = new byte[buf.length]; |
| System.arraycopy(decryptedBuffer.array(), 0, b, 0, buf.length); |
| Assert.assertArrayEquals(buf, b); |
| } |
| |
| @Test |
| public void fullRoundTrip() throws IOException, BadPaddingException, ShortBufferException, IllegalBlockSizeException |
| { |
| // compress |
| byte[] buf = new byte[(1 << 12) - 7]; |
| random.nextBytes(buf); |
| ByteBuffer compressedBuffer = EncryptionUtils.compress(ByteBuffer.wrap(buf), ByteBuffer.allocate(0), true, compressor); |
| |
| // encrypt |
| CipherFactory cipherFactory = new CipherFactory(tdeOptions); |
| Cipher encryptor = cipherFactory.getEncryptor(tdeOptions.cipher, tdeOptions.key_alias); |
| File f = File.createTempFile("commitlog-enc-utils-", ".tmp"); |
| f.deleteOnExit(); |
| FileChannel channel = new RandomAccessFile(f, "rw").getChannel(); |
| EncryptionUtils.encryptAndWrite(compressedBuffer, channel, true, encryptor); |
| |
| // decrypt |
| Cipher decryptor = cipherFactory.getDecryptor(tdeOptions.cipher, tdeOptions.key_alias, encryptor.getIV()); |
| ByteBuffer decryptedBuffer = EncryptionUtils.decrypt(RandomAccessReader.open(f), ByteBuffer.allocate(0), true, decryptor); |
| |
| // uncompress |
| ByteBuffer uncompressedBuffer = EncryptionUtils.uncompress(decryptedBuffer, ByteBuffer.allocate(0), true, compressor); |
| Assert.assertArrayEquals(buf, uncompressedBuffer.array()); |
| } |
| } |