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Anti-tampering method for screenshots of enterprise credit data based on blockchain technology

A blockchain and enterprise technology, applied in the direction of digital data protection, electronic digital data processing, still image data retrieval, etc., can solve the problem of data trust discount, modified records nowhere to trace and verify, data credibility decline, etc. question

Active Publication Date: 2020-07-28
HANGZHOU YSCREDIT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Now files, pictures and other data are stored in the central node (specific organization), and the data is stored at will, which reduces the credibility of the data, resulting in the following technical problems that can be improved or to be solved in data storage
[0003] 1. Files stored in the central node will be artificially modified, and the modified records have nowhere to be traced and verified, and the user's trust in the data used is greatly reduced
[0004] 2. Most of the current data record information is stored in a single node
When a node fails or is attacked, the data will be permanently damaged, which will affect the normal operation of the system using the data

Method used

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  • Anti-tampering method for screenshots of enterprise credit data based on blockchain technology
  • Anti-tampering method for screenshots of enterprise credit data based on blockchain technology

Examples

Experimental program
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Embodiment Construction

[0017] In order to better understand the anti-tampering technology of corporate credit data screenshots of local blockchain technology, the following specific examples are used to further describe this technology.

[0018] This embodiment discloses an anti-tampering method for screenshots of enterprise credit data based on blockchain technology, the steps of which include:

[0019] Step 1. When a user queries a company and triggers a screenshot operation, use the screenshot tool to access the website that needs to be screenshotted and perform the screenshot operation, and then store the picture in the centralized picture storage. The format of the picture name is:

[0020] a. The SHA256 encrypted value A of the enterprise name;

[0021] b. The SHA256 encryption value B of the hash summary of the picture;

[0022] c. Perform SHA256 encryption on the above encrypted value A and encrypted value B to obtain encrypted value C;

[0023] d. Add a time stamp to the above encrypted v...

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PUM

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Abstract

The embodiment of the invention provides an enterprise credit data screenshot tamper-proof technology and device based on a blockchain technology. In the method, the centralized storage of a screenshot picture is carried out, and a hash abstract of the picture is encrypted in an asymmetric encryption mode to serve as a file name; each blockchain node participates in consensus, and the smart contract can obtain the screenshots from the centralized picture memory and judge whether the screenshots are tampered or not before consensus by calculating hash abstracts of the screenshots. And after theconsensus of each node is passed, each node updates respective link data.

Description

technical field [0001] The invention relates to the field of storing enterprise credit information pictures, in particular to a method for preventing tampering of screenshots of enterprise credit data based on block chain technology. Background technique [0002] Now files, pictures and other data are stored in the central node (specific organization), and the data is stored at will, which reduces the credibility of the data, resulting in the following technical problems that can be improved or to be solved in data storage. [0003] 1. Files stored in the central node will be artificially modified, and the modified records have nowhere to be traced and verified, and the user's trust in the data used is greatly reduced. [0004] 2. Most of the current data record information is stored in a single node. When a node fails or is attacked, the data will be permanently damaged, which will affect the normal operation of the system using the data. [0005] 3. In the process of dat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/64G06F21/62G06F16/51
CPCG06F16/51G06F21/6227G06F21/64G06F2221/2107
Inventor 梁协君唐杰曹钰钢汤斯亮蒋建军
Owner HANGZHOU YSCREDIT CO LTD