Main.java Source code

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Here is the source code for Main.java

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//package com.java2s;
/*
 * Copyright (C) 2014 Markus Grieder
 *
 * 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/gpl-3.0.html>. 
 */

import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import android.accounts.Account;
import android.accounts.AccountManager;

import android.text.TextUtils;
import android.util.Base64;

public class Main {
    private static final String PRIVATE_KEY = "com.myllih.android.sync.key";

    /**
     * 
     * Get Private Key or return null.
     * 
     * @param account
     *            the account we're syncing
     * @return Private Key
     */
    public static SecretKey getPrivateKey(Account account, AccountManager accountManager) {
        // TODO: Redesign more secure location to safe private key?
        String keyString = accountManager.getUserData(account, PRIVATE_KEY);
        SecretKey key = null;
        if (!TextUtils.isEmpty(keyString)) {
            key = new SecretKeySpec(Base64.decode(keyString, Base64.DEFAULT), "AES");
        }
        return key;
    }
}