open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/KeychainApplication.java

76 lines
2.6 KiB
Java

/*
* Copyright (C) 2012-2013 Dominik Schürmann <dominik@dominikschuermann.de>
*
* 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;
import android.app.Application;
import android.os.Environment;
import org.spongycastle.jce.provider.BouncyCastleProvider;
import org.sufficientlysecure.keychain.util.Log;
import org.sufficientlysecure.keychain.util.PRNGFixes;
import java.io.File;
import java.security.Provider;
import java.security.Security;
public class KeychainApplication extends Application {
/**
* Called when the application is starting, before any activity, service, or receiver objects
* (excluding content providers) have been created.
*/
@Override
public void onCreate() {
super.onCreate();
/*
* Sets Bouncy (Spongy) Castle as preferred security provider
*
* insertProviderAt() position starts from 1
*/
Security.insertProviderAt(new BouncyCastleProvider(), 1);
/*
* apply RNG fixes
*
* among other things, executes Security.insertProviderAt(new
* LinuxPRNGSecureRandomProvider(), 1) for Android <= SDK 17
*/
PRNGFixes.apply();
Log.d(Constants.TAG, "Bouncy Castle set and PRNG Fixes applied!");
if (Constants.DEBUG) {
Provider[] providers = Security.getProviders();
Log.d(Constants.TAG, "Installed Security Providers:");
for (Provider p : providers) {
Log.d(Constants.TAG, "provider class: " + p.getClass().getName());
}
}
// Create APG directory on sdcard if not existing
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
File dir = new File(Constants.Path.APP_DIR);
if (!dir.exists() && !dir.mkdirs()) {
// ignore this for now, it's not crucial
// that the directory doesn't exist at this point
}
}
}
}