Combining method and system for protecting power utilization privacy and integrity in smart power grid

A technology of integrity protection and smart grid, which is applied in transmission systems, digital data protection, digital transmission systems, etc., and can solve problems such as inability to effectively resist collusion attacks

Active Publication Date: 2015-05-20
杭州云渊盛旅科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Combining method and system for protecting power utilization privacy and integrity in smart power grid
  • Combining method and system for protecting power utilization privacy and integrity in smart power grid
  • Combining method and system for protecting power utilization privacy and integrity in smart power grid

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Embodiment Construction

[0067] The present invention will be further described in detail below in combination with specific embodiments.

[0068] An aggregation method for electricity privacy and integrity protection in a smart grid, in which the smart meter installed in the user records and reports the user's electricity consumption in real time; the gateway with computing power is responsible for the data aggregation function and relay function ;The control center is responsible for collecting, processing and analyzing real-time power consumption data of each user, and providing reliable services; the trusted center is responsible for managing the entire system, the specific steps are as follows:

[0069] System initialization phase:

[0070] 1) The trusted center runs the following algorithm Gen(k) according to the input security parameter k to obtain the parameter , where q is a large safe prime of length k, and chooses the generator of the group G1 ;

[0071] Gen(k): Select two cyclic grou...

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Abstract

The invention discloses a combining method and system for protecting power utilization privacy and integrity in a smart power grid. According to the method, a smart electric meter arranged for a user is used for recording and reporting the power consumption of the user in real time; a gateway having computing capability is responsible for a data combining function and a relay function; a control center is used for collecting, processing and analyzing the real-time power consumption data of each user, and providing reliable services; a credible center is used for managing a whole system. The method comprises a system initialization stage (1), a user data reporting stage (2), a security data combining stage (3) and combined data recovery extremism (4). By adopting the combining method and system, a safe data combining system is implemented, and the power utilization privacy of the user is protected; meanwhile, the integrity of data is ensured, namely, data communication errors are detected and reported technically, the user is prevented from reporting illegally with a false name, and the reported power consumption is prevented from being illegally captured, modified, faked and the like.

Description

technical field [0001] The invention belongs to the technical field of smart grids, and in particular relates to an aggregation method and system for electricity privacy and integrity protection in smart grids. Background technique [0002] In the field of smart grid technology, Peng Liu et al. proposed a data aggregation scheme based on the network topology association mechanism, which can effectively collect the electricity consumption of users. First, by designing a data aggregation tree, the power control center can collect the power consumption of all users from bottom to top. Secondly, by adopting homomorphic encryption technology, each node in the tree can aggregate the data of all its child nodes in the ciphertext space, thus protecting the user's privacy without revealing the plaintext of the user's power consumption. However, in the smart grid application system, in the application scenarios of accidental data communication errors and malicious tampering of com...

Claims

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Application Information

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IPC IPC(8): H04L9/00G06F17/30H04L9/08G06F21/60G06F21/64
CPCY02D10/00
Inventor 鲍海勇陆荣幸陈乐曹珍富董晓蕾
Owner 杭州云渊盛旅科技有限公司
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