A low-power consumption authentication method and auxiliary device for smart device access to the Internet of Things
A technology for power Internet of things and smart devices, applied in encryption devices with shift registers/memory, security devices, secure communication devices, etc., can solve the problems of large storage space, many resources, endangering power system security, etc. The effect of storage resources, high security and saving storage space
Active Publication Date: 2022-05-10
STATE GRID HEBEI ELECTRIC POWER RES INST +1
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Problems solved by technology
[0003] However, when short-distance wireless is used for communication, the existing technology has the following problems: 1. External attackers can attack the power Internet of Things system through the short-distance wireless network between SGW and STD, endangering the security of the power system. Poor security; 2. Calculation consumes a lot of resources and takes up a lot of storage space
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[0100] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0101] It should be noted that, in the present invention, the term "one-time" means that every time an access request is involved, a new P g , P d , V s,d , C s,d and other data information, and the values are not the same. If the SGW or STD receives the same value as the previous time within the effective time Δt, it will consider that the received information is retransmitted by a malicious terminal and may be attacked by a man-in-the-middle. Therefore,...
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The invention discloses an STD access authentication method of the electric power Internet of Things and its auxiliary device, belonging to the technical field of secure communication of the electric power Internet of Things. The method includes a server preliminary authentication stage and a terminal authentication stage, and the server preliminary authentication stage includes querying a designated gateway and a terminal , Calculation of one-time identification, calculation of tamper-proof CAAS authentication credential information, encrypted gateway ID g One-time identity information and send access instructions. In the technical solution of the present invention, in terms of computing resource consumption, the SGW needs to consume less computing resources to complete identity authentication and key negotiation. Short-distance wireless communication devices only need three hash operations to complete identity authentication. In terms of storage resource consumption, neither communication party needs to store the information of the other party in advance, which can save a lot of storage space, especially when there are many STDs that the gateway needs to link. There are more storage resources in terms of communication resources.
Description
technical field [0001] The invention belongs to the technical field of electric power Internet of Things security communication, and in particular relates to an access authentication method and an auxiliary device for an electric power Internet of Things intelligent terminal device. Background technique [0002] The massive smart sensors, energy meters, controllers, charging piles, electricity sales terminals and other smart terminal devices deployed in the power grid, hereinafter referred to as STD, constitute a huge power Internet of Things. From the point of view of spatial distribution characteristics, STDs are generally distributed in a wide range of regions, with huge types and quantities, but they are usually deployed in sets or groups in a relatively small equipment room or wiring cabinet locally. In view of this, the existing technology uses a smart gateway, hereinafter referred to as SGW, to route or relay a certain number of STDs within a certain local area to the...
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IPC IPC(8): H04L9/32H04W4/30H04W12/041H04W12/106G16Y10/35G16Y30/10
CPCH04W4/30H04W12/06H04L9/32H04L9/06G06Q50/06G16Y10/35G16Y30/10H04L9/40Y02D30/70
Inventor 赵百捷曾四鸣赵建利王卓然刘婷冯海燕王志辉
Owner STATE GRID HEBEI ELECTRIC POWER RES INST