Future<Uint8List> getChallenge() async {
    Uint8List challengeApdu =
        Uint8List.fromList([0x00, 0x84, 0x00, 0x00, 0x08]);
    var response = await FlutterNfcKit.transceive(challengeApdu);

    // Vérifier que la réponse contient bien 8 octets
    if (response.length >= 8) {
      Uint8List rndIc = Uint8List.fromList(response.sublist(0, 8));
      print("Challenge correct (rndIc) : ${uint8ListToHex(rndIc)}");
      return rndIc;
    } else {
      throw Exception("Challenge trop court !");
    }
  } 

it gives me a correct challenge but when i try this one :

Uint8List apduCommand =
          Uint8List.fromList([0x00, 0x82, 0x00, 0x00, 0x28, ...cmdData, 0x28]);
      print("APDU envoyée : ${uint8ListToHex(apduCommand)}");
      logMessage("APDU : ${uint8ListToHex(apduCommand)}");

      // Envoi de la commande APDU
      var response = await FlutterNfcKit.transceive(apduCommand);
      print(
          "Réponse brute de la carte : ${uint8ListToHex(Uint8List.fromList(response))}");
      logMessage(
          "Réponse brute de la carte : ${uint8ListToHex(Uint8List.fromList(response))}");

      // Vérification du code d'erreur dans la réponse APDU
      if (response.length >= 2) {
        int statusCode1 = response[
            response.length - 2]; // Penultimate byte (first byte of status)
        int statusCode2 =
            response[response.length - 1]; // Last byte (second byte of status)

        print(
            "Code d'erreur de la carte : 0x${statusCode1.toRadixString(16).padLeft(2, '0')} 0x${statusCode2.toRadixString(16).padLeft(2, '0')}");

        // Vérification si l'authentification a réussi
        if (statusCode1 == 0x90 && statusCode2 == 0x00) {
          print("✅ Authentification externe réussie !");
        } else {
          print("❌ Authentification externe échouée !");
        }
      }
    } catch (e) {
      print("Erreur lors de l'envoi de l'APDU : $e");
    }
  } 

the result is 6A88 error instead of 9000 the "cmd_data" has been calculated with the documentation of icao (when i try with the reference values from the docs i get the same results as the example)