Data authorization method for block chain

Abstract

A data authorization method of a block chain comprises the steps of 1, enabling a user to carry out segmented encryption according to the confidentiality degree of a field and a displayable object; 2,storing the encrypted information on a block chain by the user; 3, according to the authorization request of the user to the field, decrypting the related field; and 4 for the use of the authority, using the authority according to the principle of applying once and using once, or according to the principle that after applying once, the authority can be checked in an unlimited manner within a period of time, or combining the two authorizations to use. According to the technical scheme, by dividing the fields of the data, a whole piece of information is divided into a plurality of independent fields to be managed, controlled and authorized, the authorization time control is increased, a user can truly and flexibly control the data, so that the authorization management of the personal data on the block chain is achieved, and the refined management and control of the personal data are achieved.

Description

technical field [0001] The invention relates to data authorization of block chains, in particular to a data authorization method of block chains. Background technique [0002] At present, there are no strong protection measures for user data on the blockchain. The principle of operation authorization is very simple, but there are obvious disadvantages: for operation authorization, it can only simply control "with permission" or "without permission", and for "how long Time permissions" did not control. Users only have integrated operations to control information, they cannot manage data in a finer granularity, and there are no effective control measures for data information of different confidentiality levels. [0003] Considering that the existing data authorization methods are relatively rough, the present invention implements a scheme for fine-grained management and authorization of data. By dividing the data fields, a whole segment of information is divided into multiple...

AI Technical Summary

Problems solved by technology

[0002] At present, there are no strong protection measures for user data on the blockchain. The principle of operation authorization is very simple, but there are obvious disadvantages: for operation authorization, it can only simply control "with permission" or "without permission", and for "how long time permissions" does not control

Users only have integrated operations to control information, and cannot manage data at a finer granularity, and have no effective control measures for data information of different confidentiality levels

[0003] Considering that the existing data authorization methods are relatively rough, the present invention implements a scheme for fine-grained management and authorization of data. By dividing the data fields, a whole segment of information is divided into multiple independent fields for management and control authorization, and Increased control of authorization time, truly allowing users to flexibly control data

Images