156 lines
7 KiB
Java
156 lines
7 KiB
Java
/*
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* Copyright (C) 2017 Schürmann & Breitmoser GbR
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.operations;
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import java.util.Random;
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import android.content.Context;
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import androidx.annotation.NonNull;
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import org.bouncycastle.bcpg.HashAlgorithmTags;
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import org.bouncycastle.bcpg.S2K;
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import org.bouncycastle.bcpg.SymmetricKeyAlgorithmTags;
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import org.bouncycastle.openpgp.PGPException;
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import org.bouncycastle.openpgp.operator.PBEDataDecryptorFactory;
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import org.bouncycastle.openpgp.operator.PGPDigestCalculatorProvider;
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import org.bouncycastle.openpgp.operator.jcajce.JcaPGPDigestCalculatorProviderBuilder;
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import org.bouncycastle.openpgp.operator.jcajce.JcePBEDataDecryptorFactoryBuilder;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.operations.results.BenchmarkResult;
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import org.sufficientlysecure.keychain.operations.results.DecryptVerifyResult;
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import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
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import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
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import org.sufficientlysecure.keychain.operations.results.SignEncryptResult;
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import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyInputParcel;
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import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyOperation;
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import org.sufficientlysecure.keychain.pgp.PgpSignEncryptData;
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import org.sufficientlysecure.keychain.pgp.Progressable;
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import org.sufficientlysecure.keychain.pgp.SignEncryptParcel;
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import org.sufficientlysecure.keychain.daos.KeyWritableRepository;
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import org.sufficientlysecure.keychain.service.BenchmarkInputParcel;
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import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
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import org.sufficientlysecure.keychain.util.Passphrase;
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import org.sufficientlysecure.keychain.util.ProgressScaler;
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import timber.log.Timber;
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public class BenchmarkOperation extends BaseOperation<BenchmarkInputParcel> {
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public BenchmarkOperation(Context context, KeyWritableRepository databaseInteractor, Progressable
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progressable) {
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super(context, databaseInteractor, progressable);
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}
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@NonNull
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@Override
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public BenchmarkResult execute(BenchmarkInputParcel consolidateInputParcel,
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CryptoInputParcel cryptoInputParcel) {
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OperationLog log = new OperationLog();
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log.add(LogType.MSG_BENCH, 0);
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// random data
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byte[] buf = new byte[1024*1024*10];
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new Random().nextBytes(buf);
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Passphrase passphrase = new Passphrase("a");
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int numRepeats = 5;
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long totalTime = 0;
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// encrypt
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SignEncryptResult encryptResult;
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int i = 0;
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do {
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SignEncryptOperation op =
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new SignEncryptOperation(mContext, mKeyRepository,
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new ProgressScaler(mProgressable, i*(50/numRepeats), (i+1)*(50/numRepeats), 100), mCancelled);
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PgpSignEncryptData.Builder data = PgpSignEncryptData.builder();
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data.setSymmetricPassphrase(passphrase);
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data.setSymmetricEncryptionAlgorithm(SymmetricKeyAlgorithmTags.AES_128);
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SignEncryptParcel input = SignEncryptParcel.createSignEncryptParcel(data.build(), buf);
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encryptResult = op.execute(input, CryptoInputParcel.createCryptoInputParcel());
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log.add(encryptResult, 1);
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log.add(LogType.MSG_BENCH_ENC_TIME, 2,
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String.format("%.2f", encryptResult.getResults().get(0).mOperationTime / 1000.0));
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totalTime += encryptResult.getResults().get(0).mOperationTime;
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} while (++i < numRepeats);
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long encryptionTime = totalTime / numRepeats;
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totalTime = 0;
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// decrypt
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i = 0;
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do {
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DecryptVerifyResult decryptResult;
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PgpDecryptVerifyOperation op =
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new PgpDecryptVerifyOperation(mContext, mKeyRepository,
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new ProgressScaler(mProgressable, 50 +i*(50/numRepeats), 50 +(i+1)*(50/numRepeats), 100));
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PgpDecryptVerifyInputParcel.Builder builder = PgpDecryptVerifyInputParcel.builder()
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.setInputBytes(encryptResult.getResultBytes())
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.setAllowSymmetricDecryption(true);
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decryptResult = op.execute(builder.build(), CryptoInputParcel.createCryptoInputParcel(passphrase));
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log.add(decryptResult, 1);
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log.add(LogType.MSG_BENCH_DEC_TIME, 2, String.format("%.2f", decryptResult.mOperationTime / 1000.0));
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totalTime += decryptResult.mOperationTime;
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} while (++i < numRepeats);
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long decryptionTime = totalTime / numRepeats;
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totalTime = 0;
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int iterationsFor100ms;
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try {
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PGPDigestCalculatorProvider digestCalcProvider = new JcaPGPDigestCalculatorProviderBuilder()
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.setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME).build();
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PBEDataDecryptorFactory decryptorFactory = new JcePBEDataDecryptorFactoryBuilder(
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digestCalcProvider).setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(
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"".toCharArray());
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byte[] iv = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
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int iterations = 0;
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while (iterations < 255 && totalTime < 100) {
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iterations += 1;
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S2K s2k = new S2K(HashAlgorithmTags.SHA1, iv, iterations);
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totalTime = System.currentTimeMillis();
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decryptorFactory.makeKeyFromPassPhrase(SymmetricKeyAlgorithmTags.AES_128, s2k);
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totalTime = System.currentTimeMillis() -totalTime;
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if ((iterations % 10) == 0) {
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log.add(LogType.MSG_BENCH_S2K_FOR_IT, 1, Integer.toString(iterations), Long.toString(totalTime));
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}
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}
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iterationsFor100ms = iterations;
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} catch (PGPException e) {
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Timber.e(e, "internal error during benchmark");
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log.add(LogType.MSG_INTERNAL_ERROR, 0);
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return new BenchmarkResult(BenchmarkResult.RESULT_ERROR, log);
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}
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log.add(LogType.MSG_BENCH_S2K_100MS_ITS, 1, Integer.toString(iterationsFor100ms));
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log.add(LogType.MSG_BENCH_ENC_TIME_AVG, 1, String.format("%.2f", encryptionTime/1000.0));
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log.add(LogType.MSG_BENCH_DEC_TIME_AVG, 1, String.format("%.2f", decryptionTime/1000.0));
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log.add(LogType.MSG_BENCH_SUCCESS, 0);
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return new BenchmarkResult(BenchmarkResult.RESULT_OK, log);
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}
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}
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