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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.io.ByteArrayInputStream;
import java.io.InputStream;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.spec.AlgorithmParameterSpec;
import javax.crypto.CipherInputStream;
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;
/**
* CipherInputStream benchmark.
*/
public class CipherInputStreamBenchmark extends SimpleBenchmark {
private static final int DATA_SIZE = 1024 * 1024;
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;
}
}
private SecretKey key;
private byte[] output = new byte[8192];
private Cipher cipherEncrypt;
private AlgorithmParameterSpec spec;
@Override protected void setUp() throws Exception {
KeyGenerator generator = KeyGenerator.getInstance("AES");
generator.init(128);
key = generator.generateKey();
spec = new IvParameterSpec(IV);
cipherEncrypt = Cipher.getInstance("AES/CBC/PKCS5Padding");
cipherEncrypt.init(Cipher.ENCRYPT_MODE, key, spec);
}
public void timeEncrypt(int reps) throws Exception {
for (int i = 0; i < reps; ++i) {
cipherEncrypt.init(Cipher.ENCRYPT_MODE, key, spec);
InputStream is = new CipherInputStream(new ByteArrayInputStream(DATA), cipherEncrypt);
while (is.read(output) != -1) {
}
}
}
}
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