1 /* 2 * Copyright (C) 2012 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package benchmarks.regression; 18 19 import com.google.caliper.Param; 20 import com.google.caliper.SimpleBenchmark; 21 import java.security.KeyPair; 22 import java.security.KeyPairGenerator; 23 import java.security.spec.AlgorithmParameterSpec; 24 25 import javax.crypto.KeyGenerator; 26 import javax.crypto.SecretKey; 27 import java.util.HashMap; 28 import java.util.Map; 29 30 import javax.crypto.Cipher; 31 import javax.crypto.spec.IvParameterSpec; 32 33 /** 34 * Cipher benchmarks. Only runs on AES currently because of the combinatorial 35 * explosion of the test as it stands. 36 */ 37 public class CipherBenchmark extends SimpleBenchmark { 38 39 private static final int DATA_SIZE = 8192; 40 private static final byte[] DATA = new byte[DATA_SIZE]; 41 42 private static final int IV_SIZE = 16; 43 44 private static final byte[] IV = new byte[IV_SIZE]; 45 46 static { 47 for (int i = 0; i < DATA_SIZE; i++) { 48 DATA[i] = (byte) i; 49 } 50 for (int i = 0; i < IV_SIZE; i++) { 51 IV[i] = (byte) i; 52 } 53 } 54 55 @Param private Algorithm algorithm; 56 57 public enum Algorithm { 58 AES, 59 }; 60 61 @Param private Mode mode; 62 63 public enum Mode { 64 CBC, 65 CFB, 66 CTR, 67 ECB, 68 OFB, 69 }; 70 71 @Param private Padding padding; 72 73 public enum Padding { 74 NOPADDING, 75 PKCS1PADDING, 76 }; 77 78 @Param({"128", "192", "256"}) private int keySize; 79 80 @Param({"16", "32", "64", "128", "1024", "8192"}) private int inputSize; 81 82 @Param private Implementation implementation; 83 84 public enum Implementation { OpenSSL, BouncyCastle }; 85 86 private String providerName; 87 88 // Key generation isn't part of the benchmark so cache the results 89 private static Map<Integer, SecretKey> KEY_SIZES = new HashMap<Integer, SecretKey>(); 90 91 private String cipherAlgorithm; 92 private SecretKey key; 93 94 private byte[] output = new byte[DATA.length]; 95 96 private Cipher cipherEncrypt; 97 98 private Cipher cipherDecrypt; 99 100 private AlgorithmParameterSpec spec; 101 setUp()102 @Override protected void setUp() throws Exception { 103 cipherAlgorithm = algorithm.toString() + "/" + mode.toString() + "/" 104 + padding.toString(); 105 106 String keyAlgorithm = algorithm.toString(); 107 key = KEY_SIZES.get(keySize); 108 if (key == null) { 109 KeyGenerator generator = KeyGenerator.getInstance(keyAlgorithm); 110 generator.init(keySize); 111 key = generator.generateKey(); 112 KEY_SIZES.put(keySize, key); 113 } 114 115 switch (implementation) { 116 case OpenSSL: 117 providerName = "AndroidOpenSSL"; 118 break; 119 case BouncyCastle: 120 providerName = "BC"; 121 break; 122 default: 123 throw new RuntimeException(implementation.toString()); 124 } 125 126 if (mode != Mode.ECB) { 127 spec = new IvParameterSpec(IV); 128 } 129 130 cipherEncrypt = Cipher.getInstance(cipherAlgorithm, providerName); 131 cipherEncrypt.init(Cipher.ENCRYPT_MODE, key, spec); 132 133 cipherDecrypt = Cipher.getInstance(cipherAlgorithm, providerName); 134 cipherDecrypt.init(Cipher.DECRYPT_MODE, key, spec); 135 } 136 timeEncrypt(int reps)137 public void timeEncrypt(int reps) throws Exception { 138 for (int i = 0; i < reps; ++i) { 139 cipherEncrypt.doFinal(DATA, 0, inputSize, output); 140 } 141 } 142 timeDecrypt(int reps)143 public void timeDecrypt(int reps) throws Exception { 144 for (int i = 0; i < reps; ++i) { 145 cipherDecrypt.doFinal(DATA, 0, inputSize, output); 146 } 147 } 148 } 149