Cross-Domain Authentication Scheme for IoT Devices Based on BlockChain
Wenzheng Li, Shengnan Zhang, Chen Zhu, Liu Sen
Abstract
With the popularity of Internet of Things (IoT) technology, the scale of IoT is gradually becoming huge and demand-driven to form multi-domain IoT, and the demand for cross-domain access of devices in multi-domain scenarios has greatly increased. Secure cross-domain authentication is an important step in securing multi-domain IoT. The current cross-domain authentication architecture for IoT devices has limitations such as single point of failure, low authentication efficiency, poor scalability and other limitations. To address these problems, this paper designs a blockchain-based cross-domain authentication scheme for IoT terminals, which adopts an authentication architecture based on a combination of blockchain and edge computing technology to eliminate the problems of traditional cross-domain authentication for IoT devices and achieve distributed authentication. Considering that IoT devices have the characteristics of heterogeneity, massiveness, and limited resources, a lightweight and secure certificateless signature scheme is introduced in the cross-domain authentication process, eliminating complex certificate management and key escrow, and achieving secure and efficient cross-domain authentication of IoT terminals.