Add the code.google.com/p/dalvik benchmarks to libcore.

I'll remove them from code.google.com afterwards.

Change-Id: I369a301ed0e116c7971caebc607c5a86d06d4ee2

1 files changed, 148 insertions, 0 deletions

diff --git a/benchmarks/regression/CipherBenchmark.java b/benchmarks/regression/CipherBenchmark.java
new file mode 100644
index 0000000..56d549b
--- /dev/null
+++ b/benchmarks/regression/CipherBenchmark.java
@@ -0,0 +1,148 @@
+/*
+ * 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);
+        }
+    }
+}