Privacy protection communication method based on chaotic system, server and communication system

Abstract

The invention provides a privacy protection communication method based on a chaotic system, a server and a communication system. The method comprises the following steps: receiving a communication request information packet sent by initiator equipment, searching corresponding chaotic system parameters and key values; verifying the verification code in the communication request information packet;after verification is passed, through the searched key value, decrypting the ciphertext in the communication request information packet; obtaining a recipient device identity, searching a chaotic system parameter and a key value corresponding to the receiver equipment; generating a chaotic system parameter and a key value for the session between the initiator device and the receiver device; calculating a first verification information packet and a second verification information packet, and sending the first verification packet to the initiator device to enable the initiator device and the receiver device to establish an encrypted session, and sending the second verification packet to the receiver device to enable the receiver device to send the communication establishment information packet to the initiator device. The method can save the storage space of the communication parameters and protect the privacy security of the user.

Description

technical field [0001] The invention belongs to the technical field of communication, and more specifically relates to a privacy protection communication method, server and communication system based on a chaotic system. Background technique [0002] IoT devices discover and use the resources and data provided by each other through communication. However, due to the limitations of device resources and other conditions, user data is mostly transmitted in clear text in unreliable channels, and attackers can easily intercept and tamper with user data. Causing user privacy information to be leaked and tampered with. To protect user privacy, an end-to-end encrypted transmission scheme can be used. [0003] The prior art proposes a communication protocol and an asynchronous key update scheme based on a chaotic system. Specifically, a Logistic map is used as the chaotic system, and its mapping formula is: x i+1 =μx i (1-x i ), where 1<μ≤4, 0<x i <1, i is a positive in...

AI Technical Summary

Problems solved by technology

This scheme stores two parameters, which are used for encryption and decryption and calculation of authentication codes respectively, and the parameters in the initialization phase are transmitted in plain text, which is easy to be obtained by attackers, resulting in leakage of user information, which will still pose a greater threat to user privacy and security. Therefore, this prior art solution has the problems of large storage space occupied by communication parameters and low communication security

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