Internet-of-Things dynamic NTRU access authentication method based on time information

Abstract

The invention relates to the field of communication, in particular to an Internet-of-Things dynamic NTRU access authentication method based on time information, which comprises the following steps: asystem user HSS server sends initialization information, and power Internet-of-Things terminal equipment encrypts the initialization information by using an NTRU security encryption algorithm with anMD5 function to form authentication information containing the time information, and sends the authentication information to an edge computing MME server; after the edge computing MME server receivesthe authentication information, MD5 functions of three adjacent time points are calculated to achieve system synchronization, the edge computing MME server uses the MD5 functions for calculation to obtain returned authentication information, and the electric power Internet-of-Things terminal device compares and verifies the returned authentication information of the edge computing MME server and local information; and if verification succeeds, an encrypted secure channel is established.

Description

technical field [0001] The invention relates to the communication field, in particular to a time information-based dynamic NTRU access authentication method for the Internet of Things. Background technique [0002] Due to the large number of terminal devices at the perception layer of the electric power Internet of Things and low computing power, the existing security access protocols of the Internet of Things cannot meet the application requirements for secure access to the electric power Internet of Things. Resource constraints make it difficult to implement complex authentication and encryption algorithms. At present, most IoT network authentication schemes use Elliptic Curve Cryptography (ECC), but the ECC algorithm involves point multiplication operations, and the calculation efficiency is low, so it is not suitable for application in IoT network terminals with low-power embedded technology. . At the same time, the security of the ECC algorithm is sensitive to the dis...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the deficiencies in the prior art, the present invention provides a dynamic NTRU access authentication method based on time information, using dynamically changing time series as MD5 Function secret key, which solves the internal attack security problem generated by the fixed MD5 function

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