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File transmission method, device and system based on block chain

A file transfer and blockchain technology, applied in the field of file transfer methods, devices and systems based on blockchain, can solve the problem of files being easily stolen by others

Inactive Publication Date: 2018-09-21
JINAN INSPUR HIGH TECH TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, once the shared password is leaked, the files are easily stolen by others

Method used

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  • File transmission method, device and system based on block chain
  • File transmission method, device and system based on block chain
  • File transmission method, device and system based on block chain

Examples

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Embodiment Construction

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection of the present invention. scope.

[0057] Such as figure 1 As shown, the embodiment of the present invention provides a blockchain-based file transfer method applied to the sender, including:

[0058] Step 101: Encrypt the file to be transmitted by using the public key in the recipient's first digital certificate, the first digital certificate is unique to the recipient, to obtain a dig...

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Abstract

The invention provides a file transmission method, device and system based on a block chain. A sender encrypts a to-be-transmitted file by utilizing a public key in a unique digital certificate of a receiver to obtain a digital envelope; and the sender uses an own unique digital certificate as the identity identifier for entering a block chain, and sends the digital envelope to the receiver basedon the block chain. Correspondingly, the receiver uses the own digital certificate as the identity identifier for entering the block chain, receives the digital envelope sent by the sender based on the block chain, and uses a private key in the own digital certificate to decrypt the digital envelope to obtain a to-be-received file. Both the sender and the receiver of the file use the digital certificate as the identity identifier for entering the block chain, the file is transferred on the block chain in a digital envelope form, and only the receiver with the corresponding digital certificatecan decrypt the file. Files are transmitted between the sender and the receiver based on the block chain, so that the files cannot be easily stolen by others.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a blockchain-based file transmission method, device and system. Background technique [0002] How to ensure the integrity and confidentiality of electronic files during transmission is a security issue faced by file turnover. [0003] Currently, files can be encrypted for transmission and access control based on a shared password. [0004] However, once the shared password is leaked, the files are easily stolen by others. Contents of the invention [0005] The present invention provides a block chain-based file transmission method, device and system, so that files are not easy to be stolen by others. [0006] In order to achieve the above object, the present invention is achieved through the following technical solutions: [0007] In the first aspect, the present invention provides a blockchain-based file transfer method applied to the sender, including: [0008] ...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L9/08
CPCH04L9/0825H04L63/0442H04L67/06H04L9/3239H04L9/3263H04L9/50
Inventor 展召磊李秀芳郑彬周祥龙
Owner JINAN INSPUR HIGH TECH TECH DEV CO LTD
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