1 files changed, 65 insertions, 0 deletions
diff --git a/benchmarks/src/benchmarks/regression/DigestBenchmark.java b/benchmarks/src/benchmarks/regression/DigestBenchmark.java
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+++ b/benchmarks/src/benchmarks/regression/DigestBenchmark.java
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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);
+        }
+    }
+}