private String get(@NonNull String key, @Nullable String defValue) {
String target = sp.getString(Digest.MD5.getHex(key), null);
if (target == null) {
return defValue;
} else {
try {
return new String(
Crypt.AES.decrypt(secret, iv, Base64.decode(target, Base64.DEFAULT)), CHARSET_UTF_8);
} catch (Crypt.CryptException e) {
Log.e(TAG, "value decrypt error at key :" + key, e);
return defValue;
}
}
}
