Application and research of automatic password update technology based on the development of wireless network

摘要

With the rapid development of wireless communication and related technology, wireless network is becoming the foundation for people to pursue information and access information and enjoy convenient network services anytime and anywhere. The purpose is to prevent camouflage and prevent the access and access of illegal users. It plays an important role in the security of wireless network under the open environment. The key agreement, handover authentication and group key management are mainly studied in wireless network security, and a self-healing group key management scheme is proposed with revocation capability in wireless sensor networks. This scheme of group key management self-healing properties and rebellious node can undo capability through two-way key chain and broadcast polynomial, can satisfy the security requirements of wireless sensor networks in a group key management of wireless communication under the environment of high packet loss rate, and can ensure that the group key secrecy, forward secrecy and backward secrecy.