A Method for Lightweight Identity Authentication of Power Internet of Things Sensing Terminals Using Edge Agents for Secure Ciphertext Decryption and Signature Verification

Abstract

The present invention discloses a method for lightweight identity authentication of power Internet of Things sensing terminals. In step 1, the Internet of Things terminal sends ciphertext data and signature value to the edge Internet of Things agent, and then proceeds to step 2; in step 2, the edge Internet of Things agent decrypts the ciphertext data and verifies the signature value, and then proceeds to step 3; in step 3, it is determined whether the decrypted ciphertext data by the edge Internet of Things agent is correct, and whether the signature value verified by the edge Internet of Things agent is correct: if the conditions that the decrypted ciphertext data by the edge Internet of Things agent is correct and the signature value verified by the edge Internet of Things agent is correct are met at the same time, then proceed to step 4; if the decrypted ciphertext data by the edge Internet of Things agent is incorrect or the signature value verified by the edge Internet of Things agent is incorrect, then

Specification

Description:The present invention relates to a Method for Lightweight Identity Authentication
[02] BACKGROUND OF THE INVENTION
The ubiquitous electric power Internet of Things refers to the information connection and interaction between any person and any object at any time, any place, and any time. It connects electric power users and their equipment, power grid enterprises and their equipment, power generation enterprises and their equipment, suppliers and their equipment, as well as people and objects, generates shared data, and serves users, power grids, power generation, suppliers and government society.
With the construction and development of the ubiquitous electric power Internet of Things, edge computing is gradually applied to various businesses, and the demand for horizontal interaction of businesses is prominent. The scope of security boundaries is constantly expanding and difficult to define. The existing protection system based on isolation is difficult to meet the extensive interconnection needs of objects , Claims:1. A method for lightweight identity authentication of sensing terminals in a Power Internet of Things system, the method comprising:
Step 1: An Internet of Things (IoT) terminal sending ciphertext data and a signature value to an edge IoT agent.
Step 2: The edge IoT agent decrypting the ciphertext data and verifying the signature value.
Step 3: Determining whether the decrypted ciphertext data and the verified signature value by the edge IoT agent are correct; wherein if both the decrypted ciphertext data and the signature value are correct, proceeding to step 4; if either is incorrect, proceeding to step 5.
Step 4: Authenticating the IoT terminal based on the correct decryption and signature verification.
Step 5: Sending an alarm from the edge IoT agent to the IoT terminal if the decryption or signature verification fails, and proceeding with further defined steps.
2. The method of claim 1, wherein N alarms are defined, where N is an integer, and is incremented by a constant L each time an alarm is triggere

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