Intelligent power grid data encryption method and decryption method with forward security

A technology of forward security and smart grid, which is applied in the field of data encryption and decryption of smart grid, which can solve the problems of easy theft of keys, high equipment cost, and large calculation cost.

Active Publication Date: 2019-11-15
湖南匡安网络技术有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a smart grid data encryption method and decryption method and decryp

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  • Intelligent power grid data encryption method and decryption method with forward security
  • Intelligent power grid data encryption method and decryption method with forward security
  • Intelligent power grid data encryption method and decryption method with forward security

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Embodiment Construction

[0063] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0064] The present invention proposes a smart grid data encryption method with forward security, which can use the national secret SM2 elliptic curve public key encryption algorithm to realize the encryption of electricity data, and can be encrypted without using bilinear pairing , using the forward security theory and the strong RSA assumption, the signature private key is dynamically updated w...

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Abstract

The invention discloses an intelligent power grid data encryption method with forward security. The method comprises the following steps: a control center registers an aggregation gateway after receiving a registration request sent to the control center by the aggregation gateway, a public key K used for encrypting plaintext data is sent to the aggregation gateway; the aggregation gateway registers the intelligent electric meter after receiving a registration request sent to the aggregation gateway by the ith intelligent electric meter Ii, sends a public key K to the intelligent electric meter; a counter j=0 is set, whether j is less than or equal to a time period T is judged; and if yes, the ith intelligent electric meter Ii selects the ID number of the ith intelligent electric meter Ii and generates a random number ti,j, calculates and discloses a time reference variable Ri,j according to the random number ti,j, and sends the random number ti,j, the ID number IDi of the ith intelligent electric meter Ii and the time reference variable Ri,j to the control center. According to the invention, the signature private key is updated in a fixed time period, the forward security of signature information is ensured, and the aggregation and verification of digital signatures are completed without using bilinear pairs.

Description

technical field [0001] The invention belongs to the technical field of smart grid security, and more specifically, relates to a smart grid data encryption method and decryption method with forward security. Background technique [0002] Smart grid is a modern transmission network that integrates communication, sensing, automation, computer, control and other technologies. The smart grid uses communication technology to collect power supply status data at the supply end and power usage data at the user end, and achieves the goals of reducing losses, saving energy, and enhancing grid communication security through coordination and control. As one of the important public infrastructures for the development of countries and cities today, the smart grid has the characteristics of safety and reliability, two-way interaction, cost-effectiveness, compatibility and self-healing. In recent years, due to the rapid development of my country's economy and network technology, my country'...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L9/32H04L9/30G06Q50/06G06F21/64
CPCG06F21/64G06Q50/06H04L9/3066H04L9/3247H04L63/0428
Inventor 王远亮李肯立徐晓阳杨志邦时晴刘俊
Owner 湖南匡安网络技术有限公司
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