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Privacy-protecting outsourcing Internet-of-things data based on blockchain and backup integrity checking method thereof

A technology for integrity verification and privacy protection, which is applied in the field of integrity verification of outsourced IoT data and its backup, and can solve the problem of low security.

Active Publication Date: 2020-12-08
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a privacy-protecting outsourced Internet of Things data and its backup integrity verification method based on blockchain, which is used to solve or at least partially solve the technical problem of low security existing in the methods of the prior art

Method used

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  • Privacy-protecting outsourcing Internet-of-things data based on blockchain and backup integrity checking method thereof
  • Privacy-protecting outsourcing Internet-of-things data based on blockchain and backup integrity checking method thereof

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Embodiment Construction

[0052] The inventor of the present application found through a lot of research and practice that the current literature or technology does not take into account the willingness of an "economically rational" cloud, that is, the cloud is willing to save the user's original data and use it for data analysis; but in order to save disk space, the cloud is often reluctant to keep a copy of the original data. On the other hand, many individual users or nodes with spare hard disk space are willing to sell storage space in exchange for certain rewards.

[0053] Main idea of ​​the present invention is as follows:

[0054] A blockchain-based integrity verification method for privacy-protected outsourced data and its backups. The program system model consists of four types of entities, namely:

[0055] User (U): the data owner. The user outsources the data to the cloud; and submits a deposit to the miner node and verifies relevant parameters.

[0056] Cloud (S): the cloud server. Sto...

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Abstract

The invention provides a privacy-protecting outsourcing data and backup integrity checking method based on a blockchain for an Internet-of-things scene by utilizing the characteristics of openness, tamper resistance and the like of the blockchain and combining related knowledge of smart contracts and cryptography. Compared with an existing data outsourcing and outsourcing data integrity checking process, the method solves the problem that the expenditure of self-verification data of a user is too large, or outsourcing depends on a trusted third party; in addition, the invention provides a newcontribution degree measurement standard and a reward distribution mechanism, so that each participant can obtain corresponding incentives.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a block chain-based method for verifying the integrity of privacy-protected outsourced Internet of Things data and its backup. Background technique [0002] With the continuous development of the Internet of Things technology, the Internet of Things system with the cloud as the background has been widely used. A large amount of data collected by IoT devices is often uploaded to the cloud for unified management and calculation. At present, well-known cloud service providers have launched cloud services for IoT applications. Most enterprises that provide Internet of Things services are limited by funding and technology, and prefer to outsource the massive data collected by Internet of Things devices to cloud server providers (hereinafter referred to as the cloud). Although data outsourcing has many advantages such as convenient management and transfer, because the da...

Claims

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Application Information

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IPC IPC(8): H04L9/08H04L9/32
CPCH04L9/0816H04L9/3236H04L9/3247
Inventor 王骞李因立陈典胡胜山沈超李琦
Owner WUHAN UNIV
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