Example usage for android.util Base64 decode

Introduction

In this page you can find the example usage for android.util Base64 decode.

Prototype

public static byte[] decode(byte[] input, int flags) 

Source Link

Document

Decode the Base64-encoded data in input and return the data in a new byte array.

Usage

From source file:im.whistle.crypt.Crypt.java

/**
 * Decrypts a message./* ww  w  .  j  av a  2 s.com*/
 * @param args Arguments: enc, privateKey, sig, publicKey
 * @param callback Callback
 */
public static void decrypt(JSONArray args, AsyncCallback<JSONArray> callback) {
    try {
        // Get the arguments
        String enc = args.getString(0);
        String key = args.getString(1);
        String sig = null;
        String pub = null;
        if (args.length() == 4) {
            sig = args.getString(2);
            pub = args.getString(3);
        }
        Boolean ver = null;

        // Convert everything into byte arrays
        byte[] encRaw = Base64.decode(enc, Base64.DEFAULT);
        byte[] keyRaw = Base64.decode(stripKey(key), Base64.DEFAULT);

        // Verify signature
        if (sig != null && pub != null) {
            try {
                byte[] sigRaw = Base64.decode(sig, Base64.DEFAULT);
                byte[] pubRaw = Base64.decode(stripKey(pub), Base64.DEFAULT);
                X509EncodedKeySpec publicKeySpec = new X509EncodedKeySpec(pubRaw);
                KeyFactory kf = KeyFactory.getInstance("RSA", "BC");
                Signature s = Signature.getInstance("SHA1withRSA", "BC");
                s.initVerify(kf.generatePublic(publicKeySpec));
                s.update(encRaw);
                ver = s.verify(sigRaw);
            } catch (Exception ex) {
                Log.i("whistle", "Verification failed: " + ex.getMessage());
                ver = false;
            }
        }

        // Split enc into encrypted aes data and remaining enc
        byte[] encSplit = encRaw;
        byte[] aesRaw = new byte[RSA_BYTES];
        System.arraycopy(encSplit, 0, aesRaw, 0, aesRaw.length);
        encRaw = new byte[encSplit.length - RSA_BYTES];
        System.arraycopy(encSplit, RSA_BYTES, encRaw, 0, encRaw.length);

        // Decrypt encrypted aes data using RSAES-OAEP
        PKCS8EncodedKeySpec privateKeySpec = new PKCS8EncodedKeySpec(keyRaw);
        KeyFactory kf = KeyFactory.getInstance("RSA", "BC");
        Cipher c = Cipher.getInstance("RSA/None/OAEPWithSHA-1AndMGF1Padding");
        c.init(Cipher.DECRYPT_MODE, kf.generatePrivate(privateKeySpec));
        aesRaw = c.doFinal(aesRaw);

        // Decrypted enc using AES-CBC
        byte[] aesKey = new byte[AES_BYTES];
        byte[] aesIv = new byte[aesRaw.length - aesKey.length];
        System.arraycopy(aesRaw, 0, aesKey, 0, aesKey.length);
        System.arraycopy(aesRaw, aesKey.length, aesIv, 0, aesIv.length);
        c = Cipher.getInstance("AES/CBC/PKCS7Padding");
        c.init(Cipher.DECRYPT_MODE, new SecretKeySpec(aesKey, "AES"), new IvParameterSpec(aesIv));
        byte[] dec = c.doFinal(encRaw);

        JSONArray res = new JSONArray();
        res.put(new String(dec, "utf-8"));
        res.put(ver);
        callback.success(res);
    } catch (Exception ex) {
        Log.w("whistle", "Decrypt error:" + ex.getMessage(), ex);
        callback.error(ex);
    }
}

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From source file:com.jefftharris.passwdsafe.SavedPasswordsMgr.java

/**
 * Load a saved password for a file/*from w ww.  ja  v a  2  s. c om*/
 */
public String loadSavedPassword(Uri fileUri, Cipher cipher)
        throws IOException, BadPaddingException, IllegalBlockSizeException {
    String keyName = getPrefsKey(fileUri);
    SharedPreferences prefs = getPrefs();
    String encStr = prefs.getString(keyName, null);
    if (TextUtils.isEmpty(encStr)) {
        throw new IOException(itsContext.getString(R.string.password_not_found, fileUri));
    }

    byte[] enc = Base64.decode(encStr, Base64.NO_WRAP);
    byte[] decPassword = cipher.doFinal(enc);
    return new String(decPassword, "UTF-8");
}

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From source file:org.n52.geoar.newdata.PluginLoader.java

/**
 * Restores the state of plugins from {@link SharedPreferences}. If an error
 * occurs, e.g. if a previously selected plugin got removed, this function
 * will quit silently./* w  w w . j  a v  a 2 s  . com*/
 */
private static void restoreState() {
    try {
        SharedPreferences preferences = GeoARApplication.applicationContext
                .getSharedPreferences(GeoARApplication.PREFERENCES_FILE, Context.MODE_PRIVATE);

        byte[] data = Base64.decode(preferences.getString(PLUGIN_STATE_PREF, ""), Base64.DEFAULT);
        PluginStateInputStream objectInputStream = new PluginStateInputStream(new ByteArrayInputStream(data));

        int stateVersion = objectInputStream.readInt();
        if (stateVersion != PLUGIN_STATE_VERSION) {
            // Do not read state if preferences contains old/invalid state
            // information
            return;
        }

        // Restore plugin state
        int count = objectInputStream.readInt();
        for (int i = 0; i < count; i++) {

            InstalledPluginHolder plugin = getPluginByIdentifier(objectInputStream.readUTF());
            if (plugin == null) {
                return;
            }
            try {
                plugin.restoreState(objectInputStream);
                plugin.postConstruct();
            } catch (IOException e) {
                LOG.warn("Exception while restoring state of plugin " + plugin.getName(), e);
            }
        }
        objectInputStream.close();
    } catch (Exception e) {
        LOG.error("Exception while restoring state ", e);
        // TODO
    }
}

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From source file:com.ericrgon.postmark.BaseFragmentActivity.java

protected String decrypt(SecretKey key, String destinationPreference) {
    SharedPreferences preferences = getSharedPreferences(CREDENTIALS_PREF_FILE, MODE_PRIVATE);
    String encryptedValue = preferences.getString(destinationPreference, "");
    return SecurityUtil.decrypt(key, Base64.decode(encryptedValue, Base64.DEFAULT));
}

---

From source file:cc.flydev.launcher.InstallShortcutReceiver.java

private static ArrayList<PendingInstallShortcutInfo> getAndClearInstallQueue(SharedPreferences sharedPrefs) {
    synchronized (sLock) {
        Set<String> strings = sharedPrefs.getStringSet(APPS_PENDING_INSTALL, null);
        if (DBG)/*  w w  w .  j  a v  a 2  s.co  m*/
            Log.d(TAG, "Getting and clearing APPS_PENDING_INSTALL: " + strings);
        if (strings == null) {
            return new ArrayList<PendingInstallShortcutInfo>();
        }
        ArrayList<PendingInstallShortcutInfo> infos = new ArrayList<PendingInstallShortcutInfo>();
        for (String json : strings) {
            try {
                JSONObject object = (JSONObject) new JSONTokener(json).nextValue();
                Intent data = Intent.parseUri(object.getString(DATA_INTENT_KEY), 0);
                Intent launchIntent = Intent.parseUri(object.getString(LAUNCH_INTENT_KEY), 0);
                String name = object.getString(NAME_KEY);
                String iconBase64 = object.optString(ICON_KEY);
                String iconResourceName = object.optString(ICON_RESOURCE_NAME_KEY);
                String iconResourcePackageName = object.optString(ICON_RESOURCE_PACKAGE_NAME_KEY);
                if (iconBase64 != null && !iconBase64.isEmpty()) {
                    byte[] iconArray = Base64.decode(iconBase64, Base64.DEFAULT);
                    Bitmap b = BitmapFactory.decodeByteArray(iconArray, 0, iconArray.length);
                    data.putExtra(Intent.EXTRA_SHORTCUT_ICON, b);
                } else if (iconResourceName != null && !iconResourceName.isEmpty()) {
                    Intent.ShortcutIconResource iconResource = new Intent.ShortcutIconResource();
                    iconResource.resourceName = iconResourceName;
                    iconResource.packageName = iconResourcePackageName;
                    data.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, iconResource);
                }
                data.putExtra(Intent.EXTRA_SHORTCUT_INTENT, launchIntent);
                PendingInstallShortcutInfo info = new PendingInstallShortcutInfo(data, name, launchIntent);
                infos.add(info);
            } catch (org.json.JSONException e) {
                Log.d(TAG, "Exception reading shortcut to add: " + e);
            } catch (java.net.URISyntaxException e) {
                Log.d(TAG, "Exception reading shortcut to add: " + e);
            }
        }
        sharedPrefs.edit().putStringSet(APPS_PENDING_INSTALL, new HashSet<String>()).commit();
        return infos;
    }
}

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From source file:com.aegiswallet.utils.WalletUtils.java

/**
 * This file will check the password provided when importing a backup file. If the password is correct,
 * it will return true, if not, false.//from  ww  w .j a va2  s  .c  om
 *
 * @param fileName
 * @param password
 * @return
 */
public static boolean checkPasswordForBackupFile(String fileName, String password) {
    boolean result = false;

    try {
        if (Constants.WALLET_BACKUP_DIRECTORY.exists() && Constants.WALLET_BACKUP_DIRECTORY.isDirectory()) {

            File file = new File(Constants.WALLET_BACKUP_DIRECTORY, fileName);

            FileInputStream fileInputStream = new FileInputStream(file);
            final BufferedReader in = new BufferedReader(
                    new InputStreamReader(fileInputStream, Constants.UTF_8));

            while (true) {
                final String line = in.readLine();
                if (line == null)
                    break; // eof

                if (line.startsWith("#X2:")) {

                    String[] splitStr = line.split(":");
                    String x2Base64 = splitStr[1];

                    String x2Encrypted = new String(Base64.decode(x2Base64.getBytes(), Base64.NO_WRAP));
                    String x2Decrypted = WalletUtils.decryptString(x2Encrypted, password);
                    x2Decrypted = x2Decrypted.split(":")[1];

                    if (x2Decrypted != null) {
                        return true;
                    }
                }
            }
        }
    } catch (FileNotFoundException e) {
        Log.e(TAG, "File not found: " + e.getMessage());
    } catch (IOException e) {
        Log.e(TAG, "IO Exception: " + e.getMessage());
    } catch (Exception e) {
        Log.e(TAG, "some other exception: " + e.getMessage());
    }

    return result;
}

---

From source file:com.primitive.applicationmanager.ApplicationManager.java

/**
 * ApplicationSummary??????//from   w w  w.  j  a  va2s .com
 * @return ApplicationSummary
 * @throws ApplicationManagerException
 */
private ApplicationSummary requestApplicationSummary() throws ApplicationManagerException {
    Logger.start();
    final String url = this.config.buildServerURL(ApplicationManager.ApplicationURI);
    final Map<String, String> params = new HashMap<String, String>();
    params.put("id", this.applicationID);
    final JSONObject json = this.requestToResponse(url, params);
    try {
        final boolean success = json.getBoolean("sucess");
        if (!success) {
            return this.beforeSummary;
        }
        final String hash = json.getString("hash");
        final String result = json.getString("result");
        final String passphrase = HashMacHelper.getHMACBase64(HashMacHelper.Algorithm.HmacSHA256,
                hash.getBytes("UTF-8"), this.config.passPhrase.getBytes("UTF-8"));

        byte[] passPhraseBytes = new byte[256 / 8];
        System.arraycopy(passphrase.getBytes(), 0, passPhraseBytes, 0, 256 / 8);

        final byte[] decriptDataByte = CipherHelper.decrypt(CipherHelper.Algorithm.AES, Mode.CBC,
                Padding.PKCS7Padding, Base64.decode(result.getBytes("UTF-8"), Base64.DEFAULT),
                hash.getBytes("UTF-8"), passPhraseBytes);

        final String decriptData = new String(decriptDataByte, "UTF-8");

        final JSONObject decript = new JSONObject(decriptData);
        final ApplicationSummary summary = new ApplicationSummary(decript);
        if (this.isUpgrade(summary)) {
            this.beforeSummary = summary;
        }
        this.beforeSummary = summary;
    } catch (final JSONException ex) {
        Logger.err(ex);
    } catch (final UnsupportedEncodingException ex) {
        Logger.err(ex);
    } catch (CipherException ex) {
        Logger.err(ex);
    }
    return this.beforeSummary;
}

---

From source file:com.crawlersick.nettool.GetattchmentFromMail1.java

public void resultAnalyst(String restr, int delaynum, int speednum, String targetoutputfolder)
        throws IOException {

    String[] tempgetudplist = restr.split("sickjohnsisick1122356l112355iaaaoss");

    //     System.out.println(tempgetudplist[1]);

    String[] tempstrs = tempgetudplist[0].split("\\r\\n");

    for (int i = 10; i < tempstrs.length; i++) {

        String[] tempstrsxxxx = tempstrs[i].split(",");
        //vpn539246233|182.216.181.220|508611|35|41230804|Korea Republic of|KR|13|
        //#HostName|IP|Score|Ping|Speed|CountryLong|CountryShort|NumVpnSessions|Uptime|TotalUsers|TotalTraffic|LogType|Operator|Message|OpenVPN_ConfigData_Base64|\

        if (tempstrsxxxx.length > 14) {
            //Base64 decoder = new Base64();

            byte[] decodedBytes = Base64.decode(tempstrsxxxx[14], Base64.DEFAULT);
            tempstrsxxxx[14] = new String(decodedBytes, "UTF-8");
            tempstrsxxxx[14] = tempstrsxxxx[14].replaceAll("#.+?\r\n", "");

            // System.out.println
            log.info(tempstrsxxxx[0] + "|" + tempstrsxxxx[1] + "|" + tempstrsxxxx[2] + "|" + tempstrsxxxx[3]
                    + "|" + tempstrsxxxx[4] + "|" + tempstrsxxxx[5] + "|" + tempstrsxxxx[6] + "|"
                    + tempstrsxxxx[7] + "|" + tempstrsxxxx[8] + "|" + tempstrsxxxx[9] + "|" + tempstrsxxxx[10]
                    + "|" + tempstrsxxxx[11] + "|" + tempstrsxxxx[12] + "|" + tempstrsxxxx[13] + "|"
            // +udplist.get(tempudpportnum+1)+"|" //+tempstrsxxxx[14]
            );/*ww  w  .  j a v  a 2  s .c  o m*/

            if (isNumericInt(tempstrsxxxx[7]) && isNumericInt(tempstrsxxxx[3]) && isNumericInt(tempstrsxxxx[4])
                    &&
                    //tempstrsxxxx[14].indexOf("proto udp")!=-1 &&
                    // Integer.valueOf(tempstrsxxxx[7])>0        &&
                    Integer.valueOf(tempstrsxxxx[3]) < delaynum
                    && Integer.valueOf(tempstrsxxxx[4]) > speednum) {

                //  tempgetudplist[1].split(",");
                List<String> udplist = Arrays.asList(tempgetudplist[1].split(","));

                int tempudpportnum = udplist.indexOf(tempstrsxxxx[0]);

                if (tempudpportnum != -1) {

                    tempstrsxxxx[14] = tempstrsxxxx[14].replace("proto tcp", "proto udp");
                    tempstrsxxxx[14] = tempstrsxxxx[14].replaceFirst(
                            "remote [0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+ [0-9]+",
                            "remote " + tempstrsxxxx[1] + " " + udplist.get(tempudpportnum + 1));

                    int performrank = Integer.valueOf(tempstrsxxxx[2]) / 10000;

                    File tempfile = new File(targetoutputfolder + tempstrsxxxx[1] + "_" + tempstrsxxxx[6]
                            + "_udp_" + "Rank" + performrank + ".ovpn");
                    FileOutputStream osss = new FileOutputStream(tempfile);
                    osss.write(tempstrsxxxx[14].getBytes("UTF-8"));
                    osss.close();

                    //System.out.println
                    log.info(tempfile.getAbsoluteFile().toString());
                    tempfile = null;

                }
                //+tempstrsxxxx[14]+"|");
            }

        }

    }

}

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From source file:com.securekey.sdk.sample.VerifyQuickCodeActivity.java

/**
 * Implements VerifyQuickCodeListener.verifyQuickCodeComplete
 * <p>/*  w  w  w. j  av  a2s . co m*/
 * If successful, will forward received txnId for final verification by the RP Server
 * 
 */
@Override
public void verifyQuickCodeComplete(int status, String transactionId) {
    if (status == Briidge.STATUS_OK) {
        if (this.jwsExpected) {
            // The JWT should be provide to a third party to be verify
            // It could be parse to see what's inside 

            dismissProgressDialog();
            String[] jwtSegment = getJWSSegments(transactionId);
            try {
                final StringBuilder message = new StringBuilder();
                message.append(new String(Base64.decode(jwtSegment[0], Base64.NO_WRAP), "UTF-8") + "\n");
                message.append(new String(Base64.decode(jwtSegment[1], Base64.NO_WRAP), "UTF-8") + "\n\n\n");
                showDialog(message.toString());

                verifyJWT(transactionId);
            } catch (UnsupportedEncodingException e) {
                Log.e(VerifyQuickCodeActivity.class.toString(), e.getMessage());
            }

        } else {

            rpQuickCodeVerify(transactionId);
        }
    } else if (status == Briidge.STATUS_TRY_LATER_TOO_MANY_INVALID_ATTEMPTS) {
        showDialog("User suspended!");
    } else if (status == Briidge.STATUS_WRONG_CODE) {
        showDialog("Invalid code!");
    } else {
        dismissProgressDialog();
        showDialog("Failed during verification process.");
    }

}

---

From source file:com.marekscholtz.bluetify.utilities.BluetoothChatService.java

private synchronized void connected(BluetoothSocket socket) {
    if (mAcceptThread != null) {
        mAcceptThread.cancel();/*from   www.j ava  2s  . com*/
        mAcceptThread = null;
    }
    if (mConnectThread != null) {
        mConnectThread.cancel();
        mConnectThread = null;
    }
    if (mConnectedThread != null) {
        mConnectedThread.cancel();
        mConnectedThread = null;
    }
    mConnectedThread = new ConnectedThread(socket);
    mConnectedThread.start();
    BluetoothAdapter bluetoothAdapter = ((BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE))
            .getAdapter();

    if (mSharedPreferences == null) {
        mSharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
    }

    byte[] usernameBytes = ("&u" + mSharedPreferences.getString("username", bluetoothAdapter.getName()) + "&p")
            .getBytes();
    if (mSharedPreferences.getString("profile_photo", null) == null) {
        write(usernameBytes);
    } else {
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        try {
            outputStream.write(usernameBytes);
            outputStream
                    .write(Base64.decode(mSharedPreferences.getString("profile_photo", null), Base64.DEFAULT));
        } catch (IOException e) {
            e.printStackTrace();
        }
        write(outputStream.toByteArray());
    }
}

---

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