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A fine-grained access control method for data sharing of Internet of Vehicles based on blockchain

A blockchain, fine-grained technology, applied in the blockchain field, can solve problems such as inconsistent device performance and low data access efficiency, and achieve the effects of improving security, eliminating worthless consumption, and avoiding access congestion.

Active Publication Date: 2021-08-10
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a blockchain-based fine-grained access control method for Internet of Vehicles data sharing, which solves the problems of network attacks in the Internet of Vehicles scenario, inconsistent device performance, and low data access efficiency

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  • A fine-grained access control method for data sharing of Internet of Vehicles based on blockchain

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Embodiment Construction

[0058] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0059] Such as figure 1 As shown, a blockchain-based fine-grained access control method for Internet of Vehicles data sharing, including:

[0060] S1. Construct the system master key MSK and public key PK, store user identity information in the blockchain and generate user private key SK to complete user registration;

[0061] Step S1 comprises the following steps:

[0062] S101. The smart contract SC to which the authent...

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Abstract

The invention discloses a blockchain-based fine-grained access control method for Internet of Vehicles data sharing, which combines blockchain technology and attribute encryption technology and makes certain optimizations to eliminate the worthless brought about by blockchain mining competition. Consumption and attribute encryption have higher requirements on device performance; corresponding optimization is carried out for the Internet of Vehicles data access scenario, which is compatible with Internet of Vehicles devices with different hardware performance, and provides consistent services for the entire network; the data sharing method proposed by the present invention , which can cope with massive concurrent data scenarios of the Internet of Vehicles and effectively avoid the problem of access congestion.

Description

technical field [0001] The invention belongs to the field of block chains, and in particular relates to a fine-grained access control method for Internet of Vehicles data sharing based on block chains. Background technique [0002] With the rapid development of technologies such as mobile computing, wireless communication, and embedded devices, the Vehicular AdHoc Network (VANET) is gradually becoming mature. It provides real-time data transmission and functional interaction for different vehicles and road facilities, allowing users to access Internet resources and share data at any time, and is committed to improving the efficiency of transportation and driving safety. At the same time, VANET, as an important part of the Internet of Things, has attracted widespread attention from academia and the automotive industry. [0003] In VANET, vehicles are equipped with various sensors and communication devices such as GPS, Wi-Fi, driving recorder and other value-added service dev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04W4/40H04W4/44H04W12/033H04W12/02H04W12/06H04W12/106H04W12/122H04L9/32G06F21/60G06F21/64H04W12/08
CPCH04L63/10H04L63/0435H04L63/123H04L63/0876H04W4/40H04W4/44H04W12/02H04W12/06H04L9/3236G06F21/602G06F21/64G06F2221/2107H04W12/033H04W12/122H04W12/106
Inventor 廖丹裴黎爽李慧张明陈雪
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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