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Attribute-based access control method for smart grid based on Bloom Filter

An access control and smart grid technology, applied in electrical components, transmission systems, etc., can solve problems such as poor performance and complex attribute encryption algorithms, achieve the effects of small storage space, improve efficiency, and avoid algorithmic operation access control structures

Active Publication Date: 2016-11-09
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the complexity of attribute encryption algorithms, these schemes perform poorly in terms of requirements (3) and (4)

Method used

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  • Attribute-based access control method for smart grid based on Bloom Filter
  • Attribute-based access control method for smart grid based on Bloom Filter
  • Attribute-based access control method for smart grid based on Bloom Filter

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Embodiment Construction

[0022] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0023] Such as figure 1 A simple smart grid access structure model is shown, which includes entities involved in the present invention and connection requests between entities.

[0024] The invention involves four entities: RTU (Remote Terminal Unit), Database, Authorization Center and User Group. RTU collects data, encrypts and uploads the data to the data center, and can also specify an authorization set and send the authorization set to the authorization center. The authorization center perfo...

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Abstract

The invention discloses an attribute-based access control method for a smart grid based on Bloom Filter. The method comprises the following steps that (1) a data owner stores data into a data center; (2) if a user wants to visit the data, the user submits an access request and an attribute set to the control center; (3) the control center utilizes a Bloom Filter algorithm to judge whether the user belongs to an authorization set; and (4) if judging that the user belongs to the authorization set, a key is obtained and is decrypted to obtain plaintext data, otherwise the data is inaccessible. The method adopts a bit array to represent the attribute set of the user concisely and utilizes the Bloom Filter to carry out quick attribute belonging judgement on the user, so that the efficient attribute-based access control is realized. In comparison with the conventional algorithm, the requirements of a program for the server memory is greatly reduced, and meanwhile, the matching efficiency is improved and the complexity for attribute encryption of mass data in the smart grid is reduced.

Description

technical field [0001] The invention relates to a smart grid attribute access control method based on Bloom Filter, which belongs to the technical field of smart grid security. Background technique [0002] Today, with the increasingly tense power situation, the construction of smart grids has become an inevitable choice for power companies. The smart grid system has a large amount of data and a large number of users. Different users have different access rights to the data. Therefore, it is necessary to realize the judgment and access control of users with different attributes, and the attribute encryption algorithm has been widely used. [0003] The ciphertext security access mechanism based on Attribute Based Encryption (ABE) has become one of the research hotspots of public key encryption system in recent years because of its flexible and elastic granularity access control. According to the deployment of its access control structure, the ABE scheme can be divided into A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L63/0435H04L63/062H04L63/0876H04L63/102
Inventor 万长胜苏清玲
Owner SOUTHEAST UNIV
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