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/*
* Copyright (C) 2012 Google Inc.
*
* 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 benchmarks.regression;
import com.google.caliper.Param;
import com.google.caliper.SimpleBenchmark;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.spec.AlgorithmParameterSpec;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import java.util.HashMap;
import java.util.Map;
import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
/**
* Cipher benchmarks. Only runs on AES currently because of the combinatorial
* explosion of the test as it stands.
*/
public class CipherBenchmark extends SimpleBenchmark {
private static final int DATA_SIZE = 8192;
private static final byte[] DATA = new byte[DATA_SIZE];
private static final int IV_SIZE = 16;
private static final byte[] IV = new byte[IV_SIZE];
static {
for (int i = 0; i < DATA_SIZE; i++) {
DATA[i] = (byte) i;
}
for (int i = 0; i < IV_SIZE; i++) {
IV[i] = (byte) i;
}
}
@Param private Algorithm algorithm;
public enum Algorithm {
AES,
};
@Param private Mode mode;
public enum Mode {
CBC,
CFB,
CTR,
ECB,
OFB,
};
@Param private Padding padding;
public enum Padding {
NOPADDING,
PKCS1PADDING,
};
@Param({"128", "192", "256"}) private int keySize;
@Param({"16", "32", "64", "128", "1024", "8192"}) private int inputSize;
@Param private Implementation implementation;
public enum Implementation { OpenSSL, BouncyCastle };
private String providerName;
// Key generation isn't part of the benchmark so cache the results
private static Map<Integer, SecretKey> KEY_SIZES = new HashMap<Integer, SecretKey>();
private String cipherAlgorithm;
private SecretKey key;
private byte[] output = new byte[DATA.length];
private Cipher cipherEncrypt;
private Cipher cipherDecrypt;
private AlgorithmParameterSpec spec;
@Override protected void setUp() throws Exception {
cipherAlgorithm = algorithm.toString() + "/" + mode.toString() + "/"
+ padding.toString();
String keyAlgorithm = algorithm.toString();
key = KEY_SIZES.get(keySize);
if (key == null) {
KeyGenerator generator = KeyGenerator.getInstance(keyAlgorithm);
generator.init(keySize);
key = generator.generateKey();
KEY_SIZES.put(keySize, key);
}
switch (implementation) {
case OpenSSL:
providerName = "AndroidOpenSSL";
break;
case BouncyCastle:
providerName = "BC";
break;
default:
throw new RuntimeException(implementation.toString());
}
if (mode != Mode.ECB) {
spec = new IvParameterSpec(IV);
}
cipherEncrypt = Cipher.getInstance(cipherAlgorithm, providerName);
cipherEncrypt.init(Cipher.ENCRYPT_MODE, key, spec);
cipherDecrypt = Cipher.getInstance(cipherAlgorithm, providerName);
cipherDecrypt.init(Cipher.DECRYPT_MODE, key, spec);
}
public void timeEncrypt(int reps) throws Exception {
for (int i = 0; i < reps; ++i) {
cipherEncrypt.doFinal(DATA, 0, inputSize, output);
}
}
public void timeDecrypt(int reps) throws Exception {
for (int i = 0; i < reps; ++i) {
cipherDecrypt.doFinal(DATA, 0, inputSize, output);
}
}
}