Among the following options, what are the ones that Huawei Lighting IoT Solution provides end-to- end security solutions to guarantee ( )? (Multiple choice)

The Huawei Lighting IoT Solution provides a comprehensive, end-to-end security architecture. At the device level (A), terminals have built-in hardware encryption engines and implement security at the MAC and transport layers (e.g., DTLS). For network transmission (B), the backhaul from the IoT gateway to the cloud platform is secured using various VPN technologies, including IPsec, to ensure data integrity and confidentiality. At the application level (C), access to the management platform and its services is secured using HTTPS, which encrypts the communication between the user/application and the server.

D. MD5 is an outdated hashing algorithm, not an encryption method. It is considered cryptographically insecure for modern applications and would not be used for data encryption in a robust security solution.

1. Huawei. (2018). Agile IoT Solution Technical White Paper. Section 3.3 "E2E Security" describes the three-layer security architecture: Device-level security (hardware secure storage), Network-level security (IPsec VPN, DTLS), and Platform-level security (HTTPS).

2. Huawei. HCIA-IoT V2.5 Training Material. Chapter on "Huawei IoT Solution Security Technology" details the security mechanisms at the terminal, network, and platform layers, confirming the use of hardware encryption, IPsec, and HTTPS.