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Privacy protection method based on blockchain cloud outsourcing computing data

A privacy protection, blockchain technology, applied in the privacy protection field based on blockchain cloud outsourcing computing data, can solve the problems of lack of scalability, excessive computing overhead, etc., to achieve high security and scalability, improve Efficiency, overcoming the effect of data validation

Active Publication Date: 2018-10-26
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies of the above-mentioned prior art, and propose a blockchain-based cloud outsourcing computing data privacy protection scheme to solve the problems of excessive computing overhead and lack of scalability in the computing process of current secure multi-party computing question

Method used

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  • Privacy protection method based on blockchain cloud outsourcing computing data
  • Privacy protection method based on blockchain cloud outsourcing computing data
  • Privacy protection method based on blockchain cloud outsourcing computing data

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Embodiment Construction

[0053] The present invention will be further described below in conjunction with the accompanying drawings.

[0054] refer to figure 1 , to further describe the specific implementation steps of the present invention.

[0055] Step 1, build a dynamic computing network.

[0056] Randomly select m cloud server nodes, and use all cloud server nodes as computing nodes to form a dynamic computing network, where the value of m is equal to the total number of service initiators.

[0057] Step 2, generate the computing node public-private key pair.

[0058] Use the ElGamal key generation algorithm to generate a public-private key pair for each computing node, and send the public key in the public-private key pair to the service initiator. Among them, the ElGamal key generation algorithm is as follows:

[0059] a=g k mod p

[0060] b=g k M mod p

[0061] Among them, a represents the public key of the computing node generated by the ElGamal key generation algorithm, g represents...

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Abstract

The invention discloses a privacy protection method based on blockchain cloud outsourcing computing data, and mainly solves the problem of high time complexity and scalability of the data privacy protection technology in the current cloud outsourcing computing process. The technical scheme is of using log information of a computing node to construct a blockchain, and using the blockchain technology to perform secure storage verification of the computing data; using the quorum technology to select a suitable computing node set for each round of computing to complete the computing task; and adopting a secure multi-party computing method based on threshold secret sharing to segment and reconstruct secret information. The privacy protection method based on blockchain cloud outsourcing computing data in the invention overcomes the problem that in the prior art, the computing network lacks the scalability and security and the complexity of the data verification process is high; and the scalability of the computing network and the efficiency of the computing process are greatly improved while the data privacy can be effectively ensured.

Description

technical field [0001] The invention belongs to the field of computer technology, and further relates to a privacy protection method based on blockchain cloud outsourcing computing data in the field of information security technology. The present invention divides and reconstructs user identity information and user outsourced data through a threshold secret sharing method, uses blockchain technology to safely store and verify calculation results, and can not only effectively protect the privacy of user identity information and user outsourced data , while greatly reducing the computing overhead of cloud outsourcing computing and increasing the scalability of computing networks. Background technique [0002] Cloud computing has received more and more attention in academia and industry, and cloud outsourcing computing, as one of the most important application services in cloud computing, has gradually received attention. In the cloud outsourcing computing environment, partici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L9/30H04L29/08
CPCH04L9/3013H04L63/0442H04L67/10H04L67/1097
Inventor 马文平陈岱
Owner XIDIAN UNIV
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