Privacy-protected distributed account book transaction method and system
A privacy protection and transaction method technology, applied in the field of distributed ledger transaction methods and systems, can solve problems such as blockchain system conflicts and dependence on supervisory nodes, and achieve high flexibility, high privacy, and privacy protection effects
Active Publication Date: 2019-11-26
BUBI BEIJING NETWORK TECH CO LTD
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Problems solved by technology
The problem with this patent is that the query requirements of the entire network nodes are met by the supervisory nodes, resulting in a certain degree of centralization. From the perspective of processing performance and security, there is a certain conflict with the blockchain system.
Other patents, such as CN106845960B blockchain-based secure transaction method and system effective patents, etc., protect privacy through key permissions, but there are also problems of relying too much on supervisory nodes
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[0023] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0024] The main steps of the present invention are illustrated below through an example:
[0025] Such as figure 1 As shown, user A, user B, and user C are ordinary users of the distributed ledger, and they want to conduct some private transactions among them. These transactions are only open to the three participating users and some nodes. Specific transactions such as (A->C, 10), (A->B, 20), (B->C, 10). (A->C,10) means that A s...
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The invention discloses a privacy-protected distributed account book transaction method and system. The privacy-protected distributed account book transaction method comprises the steps: generating atransaction secret key which is only open to a participant, an agent node and a supervision node; creating an original transaction, and encrypting the transaction; selecting an agent node by the transaction participant; sending the encrypted transaction to the agent node by the transaction participant; creating a public transaction based on the encrypted transaction by the proxy node; and publishing the public transaction to the whole network and participating in consensus verification, and after the public transaction passes the consensus verification, bringing the public transaction into a blockchain distributed account book for permanent storage. The privacy-protected distributed account book transaction method has the advantages that (1) the privacy is high: the user autonomously selects public data and private data, and the private data is strictly confidential and not public; (2) the performance is high, and the overall distributed proportion performance is not affected; and (3)high flexibility: agency nodes and public transaction generation intervals are flexibly adjusted, and the problem that transactions cannot be normally operated due to the fact that the nodes occupy too many resources is avoided.
Description
technical field [0001] The invention belongs to the technical field of block chains, and in particular relates to a privacy-protected distributed ledger transaction method and system. Background technique [0002] At present, with the rapid development of distributed ledgers based on blockchain technology, transaction privacy issues have also received more and more attention. In the traditional distributed ledger, due to the consensus mechanism, verification process and other factors, it is determined that the transaction information must be made public and kept by the whole network to ensure the fairness and non-tampering of the transaction. [0003] However, although most distributed ledger technologies can realize anonymous transactions, if the transaction information is made public, the transaction history and transaction analysis can be traced back to the transaction rules and the transaction content can be leaked. This is what most users don't want to see. Therefore,...
Claims
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IPC IPC(8): G06F21/60G06F21/62G06Q20/38H04L9/08H04L29/08
CPCG06F21/602G06F21/6245G06Q20/3829G06Q20/389H04L9/0861H04L67/56
Inventor 蒋海翟海滨张珺李军王璟赵正涌
Owner BUBI BEIJING NETWORK TECH CO LTD