Encryption.init constructor
Encryption.init()
Implementation
Encryption.init() {
final keyUtf8 = utf8.encode(_utf8);
final ivUtf8 = utf8.encode(_ivUtf8);
final key = sha256.convert(keyUtf8).toString().substring(0, 32);
final iv = sha256.convert(ivUtf8).toString().substring(0, 16);
_iv = IV.fromUtf8(iv);
_encrypter = Encrypter(AES(Key.fromUtf8(key), mode: AESMode.cbc));
}