Group authentication method and system in asynchronous group communication of machine type communication equipment in lte network

Abstract

IoT-related technologies are developing rapidly and are widely used. Machine type communication (MTC) can complete the exchange and sharing of data information between devices without the active participation of users. It has the characteristics of low cost, low power consumption, and large-scale information transmission. It is the most important communication in the Internet of Things. one of the ways. Therefore, it is necessary to pay attention to the security of MTC and protect the data security of users. The present invention provides a method and system for group authentication in asynchronous group communication of machine type communication equipment in an LTE network. Shamir's (t,n) secret sharing scheme is used to construct a group authentication scheme, and m (m≥t) machines are authenticated at one time. Type Communication Device (MTCD), which ensures the legitimacy of the MTCD identity accessing the network. At the same time, the ElGamal encryption algorithm is used in the token transmission process to ensure the security of the authentication token in the transmission process. With the present invention, group authentication can be completed with only one calculation, and the confidentiality can achieve computational security, and each group member only needs to carry one authentication token.

Description

technical field [0001] The invention relates to a group authentication technology of machine type communication equipment in the fields of information security and the Internet of Things, in particular to a group authentication scheme based on Shamir polynomial and ElGamal encryption algorithm, and more specifically, to a multi-device group authentication scheme in an LTE network A method and system for generating token information and performing group authentication using Shamir's (t,n) secret sharing scheme in authentication. Background technique [0002] Machine Type Communication (MTC), also known as Machine-to-Machine Communication (M2M), can complete the exchange and sharing of data and information between communication entities without the active participation of users. The characteristic of large-scale transmission of information is one of the important communication methods in the Internet of Things. [0003] The LTE network is one of the 4G wireless mobile broadba...

AI Technical Summary

Problems solved by technology

EPS-AKA is a traditional one-to-one authentication method. When a large number of devices access the network in a short period of time, this authentication mode will cause high authentication signaling congestion and communication delay.

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