Wanxiang Blockchain Applies for Patent on "Secure Data Acquisition Method and System Based on IEC 104 Protocol," Enhancing Power Internet of Things Security

Wanxiang Blockchain Applies for Patent on "Secure Data Acquisition Method and System Based on IEC 104 Protocol," Enhancing Power Internet of Things SecurityOn November 28, 2024, the State Intellectual Property Office of China revealed that Shanghai Wanxiang Blockchain Co., Ltd

Wanxiang Blockchain Applies for Patent on "Secure Data Acquisition Method and System Based on IEC 104 Protocol," Enhancing Power Internet of Things Security

On November 28, 2024, the State Intellectual Property Office of China revealed that Shanghai Wanxiang Blockchain Co., Ltd. submitted a patent application for a "Secure Data Acquisition Method and System Based on IEC 104 Protocol," with publication number CN119030778A and an application date of September 2024. This patent application focuses on enhancing the security of data acquisition systems for the power Internet of Things (IoT) based on the IEC 104 protocol. It achieves this by incorporating digital signature technology and the AES-256 encryption algorithm to effectively address device authentication and data transmission security issues within the power IoT.

The patent abstract details the method and system workflow, encompassing five steps: First, the gateway device generates and sends an IEC 104 protocol STARTDT request frame containing extended information. Second, the terminal device receives this request frame, authenticates the gateway device, constructs an authentication reply message, and sends an extended STARTDT confirmation frame to the gateway device. Third, the gateway device verifies the correctness of the received authentication reply message. Fourth, the terminal device prepares the data, constructs a data I-frame, encrypts the Application Service Data Unit (ASDU) using a pre-set key with AES-256, and sends it to the gateway device. Finally, the gateway device receives the data I-frame and decrypts the ASDU portion using the decryption key to obtain the required data.

The core of this patent application lies in its security mechanisms. Traditional IEC 104 protocols have inherent vulnerabilities in data transmission security, susceptible to man-in-the-middle attacks and data tampering. Wanxiang Blockchain's proposed method integrates digital signature technology at the IEC 104 protocol layer, resolving device authentication issues and ensuring only authorized devices participate in data acquisition and transmission. Simultaneously, the AES-256 encryption algorithm encrypts data transmission, preventing data leakage and tampering, and guaranteeing data confidentiality and integrity.

The AES-256 encryption algorithm is an advanced symmetric encryption algorithm widely used in data security, boasting a 256-bit key length and exceptionally high security, effectively resisting various cryptographic attacks. Encrypting the ASDU during data transmission ensures confidentiality; even if intercepted, attackers cannot decipher the content.

Digital signature technology ensures data integrity and authentication. Data signing verifies integrity, preventing tampering. It also authenticates identity, ensuring only authorized devices can acquire and transmit data. This technology integrates seamlessly with the existing IEC 104 protocol framework, requiring no significant modifications, enhancing security while minimizing implementation complexity and maximizing practicality.

This patented technology is crucial for power IoT security. With the rapid growth of the power IoT, increasing numbers of devices connect to the network, exacerbating data security concerns. Traditional security measures often struggle against complex network environments and emerging attack methods. Wanxiang Blockchain's patented technology offers an effective solution to power IoT data security, improving power system stability and security, and mitigating risks.

The patent's innovation lies in integrating security mechanisms at the IEC 104 protocol layer, not at a higher application layer. This ensures better compatibility and scalability, facilitating easier integration with existing power systems. It also maintains high efficiency without significantly impacting data acquisition real-time performance.

Furthermore, this successful patent application reflects Wanxiang Blockchain's continuous innovation and technical accumulation in blockchain technology and IoT security. As a company focused on blockchain applications, Wanxiang Blockchain is committed to promoting blockchain technology across various industries, contributing to improved information security. This patent solidifies Wanxiang Blockchain's leading position in IoT security and lays a solid foundation for its future development.

In conclusion, Wanxiang Blockchain's patent application for a "Secure Data Acquisition Method and System Based on IEC 104 Protocol" effectively enhances the security of IEC 104-based power IoT data acquisition systems by cleverly combining digital signature technology and the AES-256 encryption algorithm. This provides crucial technological support for the secure development of the power IoT, protecting data security within power systems and offering valuable experience and guidance for other IoT applications, exhibiting broad application prospects. This technology will contribute to the safer and more reliable development of the power IoT, fostering the construction of a smarter, more efficient, and secure power system.