public KeyData getEncryptionKeyData() {
KeyData encryptionData = null;
String savedValue = this.prefs.getString(preferenceKey, null);
if (savedValue != null) {
JSONObject savedObject = null;
try {
savedObject = new JSONObject(savedValue);
encryptionData = new KeyData(DPKEncryptionUtil.hexStringToByteArray(savedObject
.getString(KEY_DPK)), DPKEncryptionUtil.hexStringToByteArray
(savedObject.getString(KEY_SALT)), DPKEncryptionUtil
.hexStringToByteArray(savedObject.getString(KEY_IV)), savedObject.getInt
(KEY_ITERATIONS), savedObject.getString(KEY_VERSION));
} catch (JSONException e) {
LOGGER.log(Level.SEVERE, e.getLocalizedMessage(), e);
return null;
} catch (DecoderException e) {
LOGGER.log(Level.SEVERE, e.getLocalizedMessage(), e);
return null;
}
}
return encryptionData;
}