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/*
* Copyright (C) 2010 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 com.android.org.bouncycastle.crypto.Digest;
public class DigestBenchmark extends SimpleBenchmark {
private static final int DATA_SIZE = 8192;
private static final byte[] DATA = new byte[DATA_SIZE];
static {
for (int i = 0; i < DATA_SIZE; i++) {
DATA[i] = (byte)i;
}
}
@Param private Algorithm algorithm;
public enum Algorithm { MD5, SHA1, SHA256, SHA384, SHA512 };
@Param private Implementation implementation;
public enum Implementation { OPENSSL, BOUNCYCASTLE };
private Class<? extends Digest> digestClass;
@Override protected void setUp() throws Exception {
String className = "com.android.org.bouncycastle.crypto.digests.";
switch (implementation) {
case OPENSSL:
className += ("OpenSSLDigest$" + algorithm);
break;
case BOUNCYCASTLE:
className += (algorithm + "Digest");
break;
default:
throw new RuntimeException(implementation.toString());
}
this.digestClass = (Class<? extends Digest>)Class.forName(className);
}
public void time(int reps) throws Exception {
for (int i = 0; i < reps; ++i) {
Digest digest = digestClass.newInstance();
digest.update(DATA, 0, DATA_SIZE);
digest.doFinal(new byte[digest.getDigestSize()], 0);
}
}
}
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