Multimodal Fusion Authentication Method for Handheld Operation and Maintenance Terminal Considering Multi-factors

Under the background of mass access of handheld operation and maintenance terminals in smart grid, hardware resources are limited, password resources are insufficient, and security cannot meet the requirements of sensitive information protection. To solve this problem, this paper proposes a multi-mode fusion identity authentication method and system for handheld operation and maintenance terminals in distribution network that takes into account multiple factors. It can integrate multiple factors to participate in authentication. On the premise of ensuring the identity security of the operation and maintenance terminals accessing the cloud master station, it extracts various physical and behavioral characteristics of the handheld operation and maintenance terminals to form an identity authentication fusion model with multi-mode characteristics, Continuously carry out implicit identity authentication for handheld operation and maintenance terminals, and enhance the stability of authentication, anti-forgery and anti-attack performance on the premise of improving the authentication accuracy.