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Private data secure storage and sharing method and device

A technology of private data and secure storage, applied in the field of blockchain, can solve the problems of data custodians' self-stealing and data leakage, and achieve the effect of solving data leakage and data custodians' self-stealing and self-theft

Active Publication Date: 2019-12-10
本无链科技(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to propose a method and device for secure storage and sharing of private data, which realizes the private storage and limited sharing of data, and solves the problems of data leakage and data custodian self-stealing

Method used

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  • Private data secure storage and sharing method and device

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Embodiment Construction

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted here that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

[0040] This technical solution involves

[0041] A method for securely storing and sharing private data, the method specifically comprising:

[0042] 1. Create and assign group permissions

[0043] 1. Create a group information by using the group authenticator, the group information includes group code, group name;

[0044] 2. Convert the information of the newly added group into a blockchain transaction by using the group authenticator;

[0045] 3. Submit blockchain transactions to the blockchain by using the transaction manager;

[0046] 4. The blockchain puts the transaction into a block by using a block forge...

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PUM

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Abstract

The invention discloses a private data secure storage and sharing method and device. The method includes: creating grouping information and authority; acquiring a packet number allocated to the packetby the block chain and assigning a member account address to the packet number; encrypting the public key of the grouping member by using a ring signature and converting the encrypted data into a block chain transaction; completing permission creation and allocation of the groups; when private data is stored, obtaining an annular signature character string of the group; encrypting data needing tobe stored by using the annular signature character string; converting the encrypted data into a blockchain transaction and submitting the blockchain transaction to a blockchain; when the data is read, using the visitor private key to decrypt the data, and restoring the decrypted data according to the type of the original data, so that the effects of private storage and limited sharing of the dataare realized, and the problems of data leakage, self-stealing of a data trusteeship party and the like are solved.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a method and device for securely storing and sharing private data. Background technique [0002] Using photos and videos to record life is almost one of the necessary links in people's work and life in modern society, and we often cannot use portable devices to carry all these photo data. We generally use a cloud device to store our photos and videos. However, some of our photos and videos may involve the confidentiality of our work and life, so we are not so relieved to store them in the public network. At present, there are some individuals or institutions on the market that provide some so-called private data storage services, but Due to hacker attacks, technical defects, poor management, company closures, etc., our private photos and videos are frequently leaked and lost. In this context, some solutions propose to use offline encryption tools to encrypt photos and videos...

Claims

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Application Information

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IPC IPC(8): G06F21/60G06F21/62G06F21/64
CPCG06F21/604G06F21/6218G06F21/64G06F21/602G06F2221/2141
Inventor 杨税令
Owner 本无链科技(深圳)有限公司