Lightweight authentication protocol based on one-way function

Abstract

The invention discloses a lightweight authentication protocol based on a one-way function, characterized by comprising the following steps: 1) key generation: selecting required parameters based on an RSA cryptosystem, and generating a key pair for each member; 2) user registration: submitting registration information via a secure channel by a user; 3) authentication and broadcast: acknowledging user's identity in the authentication process, encrypting information and sending the encrypted information in a broadcast manner; and 4) password change: changing a password in a convenient and efficient manner. The lightweight authentication protocol has the advantages: Flood type DoS attack caused by high-complexity operation of a server due to playback success is avoided while playback attack is defended. Moreover, in consideration with the packet loss rate of the channel, the counter values of double communication parties can be allowed to have a difference within a certain range, and once the values exceed the range, the channel is regarded to have too high error rate or to be attacked.

Description

technical field [0001] The invention relates to a lightweight authentication protocol based on a one-way function, relates to safe encryption and has a lightweight authentication scheme. Background technique [0002] With the development of communication technologies such as the mobile Internet and the Internet of Things, the usage of mobile smart terminals has skyrocketed. The popularity of applications such as mobile social networks and e-commerce has brought many conveniences. However, while providing convenience, security issues are also increasingly prominent, especially how to ensure the security of identity authentication in an open network environment. In the Internet of Things environment, node capabilities are limited, and many traditional identity authentication security mechanisms cannot be directly applied to the Internet. Peris-Lopez et al. proposed an authentication protocol LMAP, which only uses simple operations such as bit XOR, and LAMP cannot resist async...

AI Technical Summary

Problems solved by technology

Its security is based on number theory and computational complexity theory: it is computationally easy to find the product of two large prime numbers, but it is computationally difficult to decompose the product of two large prime numbers to find its prime factors

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