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Authorizable financial data privacy processing and sharing method on block chain

A technology for financial data and privacy processing, which is applied in the fields of cryptography and blockchain, and can solve security issues, threats, etc.

Pending Publication Date: 2021-04-20
浙江泰科数联信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although Bass can be used as a public platform for big data storage and providing powerful computing capabilities, the security issues caused by storing critical data in the cloud are still potential threats

Method used

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  • Authorizable financial data privacy processing and sharing method on block chain
  • Authorizable financial data privacy processing and sharing method on block chain
  • Authorizable financial data privacy processing and sharing method on block chain

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0021] Such as Figure 1-2 As shown, according to the authorized financial data privacy processing and sharing algorithm on the block chain of the present invention, firstly, each financial institution joins the alliance chain according to the admission criteria of the alliance chain, and each financial institution in the alliance chain utilizes the alliance chain storage and computing power to store, process and share data without leaking to unauthorized institutions. Financial institution ...

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Abstract

The invention discloses an authorizable financial data privacy processing and sharing method on a block chain, which comprises the following steps that financial data privacy processing and multi-party or multi-stage sharing on an alliance chain is achieved by combining a national cipher SM4 algorithm and BGV-based homomorphic encryption, anda financial institution performs multi-party or multi-stage data sharing on the alliance chain. A data owner performs encryption protection on written-in data by using a national cryptography SM4 algorithm, then packages and uplinks the data, and when ciphertext data needs to be shared and authorized to other cooperation or applicants, only an authorized financial institution can decrypt the data. According to the invention, the ciphertext encrypted by the authorizer SM4 is converted into the new ciphertext of the data applicant under the fully homomorphic encryption, so that the BaaS can be utilized to ensure the security processing and sharing of financial data and support the multi-level sharing of data at the same time.

Description

technical field [0001] The present invention relates to the technical fields of cryptography and block chain, in particular, to a method for authoritative financial data privacy processing and sharing on the block chain. Background technique [0002] The 21st century is the era of data processing and sharing. Data is the most valuable asset, but the value of data lies in interconnection. The British government's Competition and Markets Commission CMA2016 began to lead the Open Banking plan, and in 2018 it began to be gradually implemented in major British banks. The European Union passed the PSD2 law in 2016, stipulating that European banks must open payment services and related customer data to third-party service providers from January 13, 2018. On October 18, 2017, the U.S. Consumer Financial Protection Bureau (CFPB) released the principles of financial data sharing and integration authorized by consumers. Since then, financial data sharing has been a hot topic in financ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/60G06F21/62G06F21/64G06F16/27G06Q40/04
Inventor 魏本强刘洋程撰程小永林大亮王睿达
Owner 浙江泰科数联信息技术有限公司
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