Blockchain-based electricity trading system, transaction method and bill query method
A power transaction and blockchain technology, applied in transmission systems, digital transmission systems, buying and selling/lease transactions, etc., can solve problems such as traffic analysis attacks, aggregator intrusion attacks, and traffic analysis attacks without a better solution
Active Publication Date: 2022-07-19
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology
[0006] First, there may be internal or external intruders eavesdropping or intercepting the information flow of the local P2P electric vehicle power transaction during the communication process of the electric vehicles of the supply and demand parties participating in the power transaction, so as to conduct traffic analysis attacks. Currently, there is no traffic analysis attack. better solution
[0007] Second, after the electric vehicles on both sides of the supply and demand complete the charging service, when the electric vehicles need to query their own transaction bill data, there may be unregistered electric vehicles pretending to be legal identities to interact with the key distribution center to obtain transaction bill data; and The local aggregator may be subject to an intrusion attack, resulting in a security hole in the transaction bill data returned by the local aggregator
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[0048] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention.
[0049] refer to figure 1 , an embodiment of the present invention provides a blockchain-based power trading system, including: a key distribution center, a plurality of local aggregators and a plurality of user terminals, wherein;
[0050] Key distribution center (also known as audit center or security center, which will be described in the following text), the key distribution center is mainly responsible for providing registration functions for users, and generating and updatin...
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The invention discloses a blockchain-based power trading system, a trading method and a bill query method. In the power trading system constructed by the invention, the user terminal uses different public keys as temporary identities for each power transaction to generate power supply and demand information , and send it to the local aggregator after signing with the corresponding private key, which can effectively prevent eavesdropping attacks and traffic analysis attacks, increase the difficulty of intruders stealing user transaction privacy, and protect the confidentiality of user transaction bills. Moreover, when the local aggregator saves the transaction bill, it uses the temporary identity of the client for binding, which can prevent intruders from forging temporary identities to obtain the transaction bill; and the client verifies the transaction bill returned by the local aggregator, which can also avoid transactions. Bills are tampered with by local aggregators.
Description
technical field [0001] The invention relates to the technical field of vehicle power transaction, in particular to a blockchain-based power transaction system, a transaction method and a bill query method. Background technique [0002] As an important part of the smart grid, electric vehicles are being widely used. Electric vehicles can be used as both a distributed mobile energy carrier and a flexible energy storage repository. The plug-in hybrid electric vehicle (phev), as a representative of distributed energy resources, is also integrated into the smart grid for its benefits and environmental advantages. Electric vehicles can transmit, dispatch and distribute energy in different regions, and vehicle-to-grid (V2G) networks, including electric vehicles (EVs) as energy suppliers and consumers, are rapidly emerging as an important part of the enhanced smart grid in the future. Electricity transactions are conducted between electric vehicles. After the electric vehicles with...
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IPC IPC(8): H04L9/40H04L67/12G06Q30/06G06Q50/06
CPCH04L63/06H04L63/062H04L63/0435H04L63/0442H04L63/083H04L67/12H04L63/1408G06Q30/0609G06Q50/06
Inventor 夏卓群王光辉尹波谷科王静
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY