Intelligent contract supply chain trusted service method based on block chain

A smart contract and service method technology, applied in the field of blockchain, can solve problems such as blockchain is not suitable for application

Active Publication Date: 2021-05-14
农夫铺子发展集团有限公司
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  • Intelligent contract supply chain trusted service method based on block chain

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Embodiment Construction

[0020] The following and accompanying appendices illustrating the principles of the invention Figure 1 A detailed description of one or more embodiments of the invention is provided together. The invention is described in connection with such embodiments, but the invention is not limited to any embodiment. The scope of the invention is limited only by the claims and the invention encompasses numerous alternatives, modifications and equivalents. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. These details are provided for the purpose of example and the invention may be practiced according to the claims without some or all of these specific details.

[0021] One aspect of the present invention provides a blockchain-based smart contract supply chain trusted service method. figure 1 It is a flowchart of a blockchain-based smart contract supply chain trusted service method according to...

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Abstract

The invention provides an intelligent contract supply chain trusted service method based on a block chain. The method comprises the following steps: when a new intelligent contract is created, generating a public and private key pair; encrypting data related to the smart contract by using the public key; encoding the related encrypted data to a first block of the block chain; distributing the first block to a plurality of verification nodes of the block chain; receiving an access request from the contract node, and requesting to send the encrypted data related to the new smart contract to the contract node; judging whether the supply chain node has related permission or not; if the supply chain node has permission, determining a related access level of the contract node; and transmitting the private key of the new smart contract to the contract node. On the basis of keeping the openness of the block chain, based on an intelligent contract mechanism, access of a single node to confidential transaction information stored in the block chain is realized through authorization control, and trusted data privacy protection of the supply chain is effectively realized.

Description

technical field [0001] The present invention relates to block chains, in particular to a trusted service method for smart contract supply chains based on block chains. Background technique [0002] In the supply chain domain, business-to-customer, business-to-business interactions often require multiple pieces of information to be verified before a transaction takes place. This verification is usually achieved by participants contacting a trusted centralized institution. A centralized authority can then verify specific information and communicate it to participants. A centralized authority is associated with a unique database that is used to track transactions and transaction-related information. Participants must reconcile the database to reach a consensus on the validity of the information stored in the database. A centralized institution acts as a consensus arbitrator. Unlike traditional schemes that use centralized servers, blockchains cannot unilaterally alter distr...

Claims

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Application Information

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IPC IPC(8): G06Q20/38G06Q20/40G06F21/60G06F21/62G06F21/64
CPCG06Q20/3825G06Q20/3827G06Q20/3829G06Q20/401G06F21/602G06F21/6245G06F21/64
Inventor 刘文强刘国堂
Owner 农夫铺子发展集团有限公司
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