CN113434909B

CN113434909B - Data on-demand evidence-storing method based on blockchain

Info

Publication number: CN113434909B
Application number: CN202110711660.0A
Authority: CN
Inventors: 洪薇; 洪健; 李京昆; 刘文思
Original assignee: Hubei Yangzhong Jushi Information Technology Co ltd
Current assignee: Hubei Yangzhong Jushi Information Technology Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2023-12-29
Anticipated expiration: 2041-06-25
Also published as: CN113434909A

Abstract

The utility model discloses a data on-demand evidence storage method based on a blockchain, which relates to the field of blockchains, and comprises the following steps: s1, establishing an attribute dictionary table, wherein fields are data types, data attribute names and whether to be uplink; s2, storing the data type and all attribute names of the source data to be authenticated into an attribute field table based on the step S1. By storing all attribute names and whether uplink fields of each data type in the attribute dictionary table, controlling which attributes need to be logged according to the service requirement, and calculating the hash of the attribute value corresponding to the attribute name needing to be logged once, after the uplink is constructed by the method, whether the data is tampered or not can be judged rapidly when the data on each link is used in the downlink service process, meanwhile, the fact that which meaningful attribute is tampered can be checked, and the attribute storage space and attribute comparison time on the link are saved greatly.

Description

Data on-demand evidence-storing method based on blockchain

Technical Field

The utility model relates to a data on-demand evidence storage method, in particular to a data on-demand evidence storage method based on a blockchain.

Background

The block chain data storage certificate is to store the data on the block chain, so as to achieve the purposes of tamper resistance, traceability and trusted data source; the data can be in any file form such as text, video, audio pictures, database records and the like; in order to realize quick transaction, in general, the cooperative work of the link is adopted, the way that the file is separated from the hash value is adopted, only the hash value of the file is stored on the link, and the original file is stored under the link; if the hash value of the file is calculated and compared with the hash value on the chain, whether the file is tampered is known; however, the limitation of the method can only judge whether the whole file is tampered, if the user wants to know a more specific tampered position, the user needs to split the file into a plurality of attributes, so that the user can respectively compare hash values of the attributes, and know which attribute of the file is tampered; in general, all the attributes of the file are stored in the chain, so that it can be precisely determined which attribute of the file is tampered, but there is a problem that all the attributes of the file are not necessarily actually meaningful, and in the case of database records, it is meaningless that the latest modification time, the latest synchronization time, and the like of one database record are tampered with attributes which have no direct relation with the actual service, and instead, the waste of storage space on the chain and the waste of time for calculating the hash value of the attributes are increased.

Disclosure of Invention

The utility model aims to provide a data on-demand verification method based on a blockchain, which aims to accurately judge which attribute is tampered after the data is verified on the blockchain, and meanwhile, the tampered attribute has practical business significance.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a blockchain-based data on-demand certification method, the method comprising the steps of:

s1, establishing an attribute dictionary table, wherein fields are data types, data attribute names and whether to be uplink;

s2, storing the data type and all attribute names of the source data to be authenticated into an attribute field table based on the step S1;

s3, based on the step S2, setting which data attribute names of the data types need to be subjected to the uplink certificate, and modifying whether an uplink field in an attribute dictionary table needs to be subjected to the uplink certificate to be yes;

s4, based on the step S3, extracting whether the uplink field of the source data is the attribute name and the corresponding attribute value, respectively named as key and value, calculating the hash value of the value through a hash algorithm, recording the hash value as hash, and uploading the key and the hash to a chain for verification.

As a preferable technical scheme of the utility model, the data attribute names are collected before the attribute dictionary table is established in the S1, and the data attribute fields in the attribute dictionary table comprise the data attribute names and whether the attributes are uplink.

As a preferable technical scheme of the utility model, the hash in the step S4 is a value.

Compared with the prior art, the utility model has the beneficial effects that:

according to the method, all attribute names and whether uplink fields of each data type are stored in the attribute dictionary table, which attributes need to be subjected to uplink memory card are controlled according to the service requirement, and the attribute values corresponding to the attribute names needing to be subjected to uplink memory card are calculated once, so that after the uplink is constructed by the method, whether the data are tampered or not can be judged rapidly when the data on each link are used in the downlink service process, meanwhile, which meaningful attribute is tampered can be checked, and the attribute storage space and attribute comparison time on the link are saved greatly.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a technical scheme of a data on-demand evidence-storing method based on a blockchain, which comprises the following steps: a blockchain-based data on-demand certification method, the method comprising the steps of:

And S1, collecting data attribute names before establishing an attribute dictionary table, wherein the data attribute fields in the attribute dictionary table comprise the data attribute names and whether the attributes are uplink.

In the step S4, the hash is a value.

Examples:

s2, storing the data type and all attribute names of the source data to be authenticated into an attribute field table based on the step S1; for example, the source data to be stored is related unit-population basic information, all field names are id, name, identification number, remark 1, remark 2, remark 3, creation time, latest modification time, latest synchronization time and other 9 fields, and then 9 records are newly added in the attribute dictionary table, and the data types are respectively: related units-population basic information; data attribute name: a field name; whether to uplink: defaulting to no;

s3, based on the step S2, setting which data attribute names of the data types need to be subjected to the uplink certificate, and modifying whether an uplink field in an attribute dictionary table needs to be subjected to the uplink certificate to be yes; for example, in the S2 example, if the id, the name and the id number need to be key data and are of business significance, setting the data attribute id, the name and the uplink field corresponding to the id number in the attribute dictionary table with respect to whether the data type is related unit-population basic information to be yes;

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is merely for convenience in describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and defined otherwise, for example, it may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The data on-demand evidence-storing method based on the blockchain is characterized by comprising the following steps of: the method comprises the following steps:

s1, establishing an attribute dictionary table, wherein fields are data types; the method comprises the steps that S1, data attribute names are required to be collected before an attribute dictionary table is established, and data attribute fields in the attribute dictionary table comprise the data attribute names and whether the attributes are uplink;