private byte[] setZID() { SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this); try { byte[] zid = new byte[12]; SecureRandom.getInstance("SHA1PRNG").nextBytes(zid); String encodedZid = Base64.encodeBytes(zid); preferences.edit().putString("ZID", encodedZid).commit(); return zid; } catch (NoSuchAlgorithmException e) { throw new IllegalArgumentException(e); } }
public void serializeToFile(Context context) { if (this.bloomFilter == null) return; try { FileOutputStream fout = context.openFileOutput(DIRECTORY_FILE, 0); String numberFilter = Base64.encodeBytes(bloomFilter.getFilter()); NumberFilterStorage storage = new NumberFilterStorage(numberFilter, bloomFilter.getHashCount()); storage.serializeToStream(fout); fout.close(); } catch (IOException ioe) { Log.w("NumberFilter", ioe); } }