Secure access method of lora terminal based on dh algorithm

An access method and terminal security technology, applied in the field of Internet of Things communications, can solve problems such as legal LoRa terminals not being able to access, and achieve the effect of reducing complexity and improving security

Active Publication Date: 2022-07-01
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, the network server judges the legitimacy of the LoRa terminal by whether the random numbers of both parties are equal, but the replay attack will cause the request of the legitimate LoRa terminal to be rejected due to the asynchronous update of the random number, so that the legitimate LoRa terminal cannot access application server

Method used

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  • Secure access method of lora terminal based on dh algorithm
  • Secure access method of lora terminal based on dh algorithm
  • Secure access method of lora terminal based on dh algorithm

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Embodiment Construction

[0058] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0059] refer to figure 1 , the present invention comprises the steps:

[0060] Step 1) Initialize communication network parameters:

[0061] LoRa Terminal E i The number of access request rounds LE i Initialized to 0, the number of successful accesses LN of the network server NS i Initialized to 0. Network server NS and LoRa terminal E i There is a shared secret key between the LoRa terminal E i stored as AKey in i , stored as AKey in web server NS i ', via AKey i and AKey i 'generate random numbers and The formula is:

[0062]

[0063]

[0064] Among them, sha1(q) represents the message digest of q, and hval(p,q) has the following meanings. First, the 160bits sha1(q) is split from left to right into an array with an array element size of 8bits and an array size of 20. hval (p,q) represents the p+1th array element....

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Abstract

The present invention proposes a LoRa terminal security access method based on the DH algorithm, which is used to solve the problem in the prior art that the LoRa terminal requests access caused by the rejection of the legal LoRa terminal E accessing the application server AS request due to the replay attack. Technical issues with poor security. The implementation steps are: initialize communication network parameters; each E sends an access request JR to the network server NS; the NS sends a request response message JA to each JR legal terminal E', and sends an application session key to the AS; each E' Verify whether JA is legal and complete; each E' sends an application authorization request message AAR to AS; AS sends an application authorization message AAA to each AAR legal terminal E''; each E' verifies whether AAA meets the time-limited requirements, completeness and correctness ;Each E" sends an authorization confirmation message M to the AS; the AS verifies M and connects the terminal E" to itself successfully.

Description

technical field [0001] The invention belongs to the technical field of Internet of Things communication, and relates to a LoRa terminal access method, in particular to a LoRa terminal security access method based on a DH algorithm, which can be used in the LoRa terminal request access process in the Internet of Things communication technical field. Background technique [0002] IoT communication means that various information sensors are connected to the Internet through various possible networks to realize the communication between objects and objects and between objects and people. LoRa is a communication technology for information sensors to connect to the Internet. Its biggest feature is that it can transmit signals farther than other communication technologies under the same power consumption conditions, and realize the unity of long distance and low power consumption. The LoRa terminal is an information sensor that uses LoRa technology to access the application server,...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04W12/06H04W12/08H04W12/106H04W12/0431H04W12/0433H04W12/03H04W12/122H04L9/32H04L9/40
CPCH04W12/08H04L9/3242H04L9/3297H04L63/0435
Inventor方建平李姣
OwnerXIDIAN UNIV