Method for supervisor to share sensitive data in alliance chain scene based on group negotiation key

Abstract

The embodiment of the invention relates to a method for a supervisor to share sensitive data in an alliance chain scene based on a group negotiation key in the technical field of alliance chain content supervision, and the method comprises the following steps: S1, generating system parameters by an authentication center, and submitting the related system parameters to an alliance chain; s2, a supervisor group joins the alliance chain network, completes respective secret key registration and generation according to information such as system parameters on the chain, and submits public information such as a public key and registration identification information to the alliance chain; and S3, obtaining the public information from the alliance chain by each supervisor, calculating to obtain corresponding broadcast information, uploading the broadcast information to the alliance chain, and storing a private message value locally at the same time. The method has the beneficial effects that the block chain which has the characteristics of decentralization, tampering difficulty, traceability and the like is proposed, the safe sharing of account book data can be realized by applying means of data encryption, timestamps, distributed consensus, economic incentive and the like, and the healthy and sustainable development of the block chain industry is ensured.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of consortium chain content supervision, in particular to a method for supervisors to share sensitive data in a consortium chain scenario based on group negotiation keys. Background technique [0002] Consortium chain content supervision is divided by organizational structure and landing application mode. Blockchain can be divided into three types: public chain, consortium chain and private chain. Among them, the nodes in the public chain are completely equal, and the nodes' ability to manage information is extremely limited. ; Nodes in the private chain are strictly restricted, and write permissions are controlled by certain organizations and institutions. [0003] The existing publication number is CN108055274A, which is based on an encryption and sharing method of alliance chain storage data and the system proposes and solves the technical defects in customer service existing boo...

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Problems solved by technology

[0003] The existing publication number is CN108055274A, which is based on an encryption and sharing method of alliance chain storage data and the system proposes and solves the technical defects in customer service existing book encryption methods and sharing, but the problem of trust building has gradually become a pain point in the industry. On the one hand, centralized institutions generally have problems such as high cost, low efficiency, and insecure data storage; on the other hand, it is difficult for groups that do not trust each other in the network to quickly establish trust at a low cost, which affects the efficient and orderly nature of digital economic activities. , credibly, the supervisor is usually not undertaken by a single node, but multiple nodes from different interest groups share the supervision responsibility to prevent the control of powerful organizations and avoid problems such as single point of failure

Therefore, there are scenarios where multiple regulators need to know the private data of a certain transaction, which brings about the efficiency of session key sharing. For this reason, we propose a group-negotiated key-based consortium chain supervision ways to share sensitive data

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