1 files changed, 154 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BenchmarkOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BenchmarkOperation.java
new file mode 100644
index 000000000..f6e157c74
--- /dev/null
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BenchmarkOperation.java
@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2015 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (C) 2015 Vincent Breitmoser <v.breitmoser@mugenguild.com>
+ * Copyright (C) 2015 Adithya Abraham Philip <adithyaphilip@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.operations;
+
+
+import java.util.Random;
+
+import android.content.Context;
+import android.support.annotation.NonNull;
+
+import org.spongycastle.bcpg.HashAlgorithmTags;
+import org.spongycastle.bcpg.S2K;
+import org.spongycastle.bcpg.SymmetricKeyAlgorithmTags;
+import org.spongycastle.openpgp.PGPException;
+import org.spongycastle.openpgp.operator.PBEDataDecryptorFactory;
+import org.spongycastle.openpgp.operator.PGPDigestCalculatorProvider;
+import org.spongycastle.openpgp.operator.jcajce.JcaPGPDigestCalculatorProviderBuilder;
+import org.spongycastle.openpgp.operator.jcajce.JcePBEDataDecryptorFactoryBuilder;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.operations.results.BenchmarkResult;
+import org.sufficientlysecure.keychain.operations.results.DecryptVerifyResult;
+import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
+import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
+import org.sufficientlysecure.keychain.operations.results.SignEncryptResult;
+import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyInputParcel;
+import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyOperation;
+import org.sufficientlysecure.keychain.pgp.Progressable;
+import org.sufficientlysecure.keychain.pgp.SignEncryptParcel;
+import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.service.BenchmarkInputParcel;
+import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
+import org.sufficientlysecure.keychain.util.Log;
+import org.sufficientlysecure.keychain.util.Passphrase;
+import org.sufficientlysecure.keychain.util.ProgressScaler;
+
+
+public class BenchmarkOperation extends BaseOperation<BenchmarkInputParcel> {
+
+    public BenchmarkOperation(Context context, ProviderHelper providerHelper, Progressable
+            progressable) {
+        super(context, providerHelper, progressable);
+    }
+
+    @NonNull
+    @Override
+    public BenchmarkResult execute(BenchmarkInputParcel consolidateInputParcel,
+                                     CryptoInputParcel cryptoInputParcel) {
+        OperationLog log = new OperationLog();
+        log.add(LogType.MSG_BENCH, 0);
+
+        // random data
+        byte[] buf = new byte[1024*1024*5];
+        new Random().nextBytes(buf);
+
+        Passphrase passphrase = new Passphrase("a");
+
+        int numRepeats = 5;
+        long totalTime = 0;
+
+        // encrypt
+        SignEncryptResult encryptResult;
+        int i = 0;
+        do {
+            SignEncryptOperation op =
+                    new SignEncryptOperation(mContext, mProviderHelper,
+                            new ProgressScaler(mProgressable, i*(50/numRepeats), (i+1)*(50/numRepeats), 100), mCancelled);
+            SignEncryptParcel input = new SignEncryptParcel();
+            input.setSymmetricPassphrase(passphrase);
+            input.setBytes(buf);
+            encryptResult = op.execute(input, new CryptoInputParcel());
+            log.add(encryptResult, 1);
+            log.add(LogType.MSG_BENCH_ENC_TIME, 2,
+                    String.format("%.2f", encryptResult.getResults().get(0).mOperationTime / 1000.0));
+            totalTime += encryptResult.getResults().get(0).mOperationTime;
+        } while (++i < numRepeats);
+
+        long encryptionTime = totalTime / numRepeats;
+        totalTime = 0;
+
+        // decrypt
+        i = 0;
+        do {
+            DecryptVerifyResult decryptResult;
+            PgpDecryptVerifyOperation op =
+                    new PgpDecryptVerifyOperation(mContext, mProviderHelper,
+                            new ProgressScaler(mProgressable, 50 +i*(50/numRepeats), 50 +(i+1)*(50/numRepeats), 100));
+            PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel(encryptResult.getResultBytes());
+            input.setAllowSymmetricDecryption(true);
+            decryptResult = op.execute(input, new CryptoInputParcel(passphrase));
+            log.add(decryptResult, 1);
+            log.add(LogType.MSG_BENCH_DEC_TIME, 2, String.format("%.2f", decryptResult.mOperationTime / 1000.0));
+            totalTime += decryptResult.mOperationTime;
+        } while (++i < numRepeats);
+
+        long decryptionTime = totalTime / numRepeats;
+        totalTime = 0;
+
+        int iterationsFor100ms;
+        try {
+            PGPDigestCalculatorProvider digestCalcProvider = new JcaPGPDigestCalculatorProviderBuilder()
+                    .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME).build();
+            PBEDataDecryptorFactory decryptorFactory = new JcePBEDataDecryptorFactoryBuilder(
+                    digestCalcProvider).setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(
+                    "".toCharArray());
+
+            byte[] iv = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
+            int iterations = 0;
+            while (iterations < 255 && totalTime < 100) {
+                iterations += 1;
+
+                S2K s2k = new S2K(HashAlgorithmTags.SHA1, iv, iterations);
+                totalTime = System.currentTimeMillis();
+                decryptorFactory.makeKeyFromPassPhrase(SymmetricKeyAlgorithmTags.AES_128, s2k);
+                totalTime = System.currentTimeMillis() -totalTime;
+
+                if ((iterations % 10) == 0) {
+                    log.add(LogType.MSG_BENCH_S2K_FOR_IT, 1, Integer.toString(iterations), Long.toString(totalTime));
+                }
+
+            }
+            iterationsFor100ms = iterations;
+
+        } catch (PGPException e) {
+            Log.e(Constants.TAG, "internal error during benchmark", e);
+            log.add(LogType.MSG_INTERNAL_ERROR, 0);
+            return new BenchmarkResult(BenchmarkResult.RESULT_ERROR, log);
+        }
+
+        log.add(LogType.MSG_BENCH_S2K_100MS_ITS, 1, Integer.toString(iterationsFor100ms));
+        log.add(LogType.MSG_BENCH_ENC_TIME_AVG, 1, String.format("%.2f", encryptionTime/1000.0));
+        log.add(LogType.MSG_BENCH_DEC_TIME_AVG, 1, String.format("%.2f", decryptionTime/1000.0));
+
+        log.add(LogType.MSG_BENCH_SUCCESS, 0);
+        return new BenchmarkResult(BenchmarkResult.RESULT_OK, log);
+    }
+
+}