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Passive dns data sharing method and system based on blockchain and secure multi-party computing

A technology for secure multi-party computing and data sharing, applied in the field of passive DNS data sharing based on blockchain and secure multi-party computing, and can solve problems such as lack of data collection process

Active Publication Date: 2021-11-19
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One is the lack of a data collection process

Method used

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  • Passive dns data sharing method and system based on blockchain and secure multi-party computing
  • Passive dns data sharing method and system based on blockchain and secure multi-party computing
  • Passive dns data sharing method and system based on blockchain and secure multi-party computing

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Embodiment Construction

[0032] The purpose of the present invention is to solve the problem of lack of trust and lack of good privacy protection in the existing passive DNS data sharing technology, and provide a passive DNS data sharing method and system based on blockchain and secure multi-party computing.

[0033] When the inventor conducted research on passive DNS data sharing, he found that the existing technology only achieves safe passive DNS data sharing by avoiding the collection of passive DNS data involving privacy, and the data sharing needs to be implemented by third-party organizations. Due to the lack of good privacy protection and failure to solve the trust problem in the process of passive DNS data sharing, the inventors have conducted research on data sharing and privacy protection methods and found that this defect can be solved by combining blockchain technology and secure multi-party computing protocols To achieve this, the present invention adds passive DNS data collection and sto...

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Abstract

The present invention proposes a passive DNS data sharing method based on blockchain and secure multi-party computing, including: the data holding node collects DNS data for storage, and stores the data index of DNS data into the blockchain; when the data requesting node requests When DNS data is shared, the computing node requests data through the smart contract; the computing node extracts the shared data according to the data index, splits the shared data and distributes it to all computing nodes; the computing node passes all the split data received through The calculation function obtains the preliminary result and broadcasts the preliminary result to all calculation nodes, and each calculation node combines all the preliminary results to obtain the calculation result and performs correctness verification; the data request node obtains the calculation result and verifies it through the smart contract, and will pass the verification The calculation results are stored in the blockchain.

Description

technical field [0001] The invention relates to the technical field of passive DNS data analysis, in particular to a passive DNS data sharing method based on blockchain and secure multi-party computing. Background technique [0002] Domain Name Service (Domain Name Service, DNS) is mainly used to map human-readable domain names into machine-readable network layer IP addresses, and its transactions are the prerequisite for most transactions on the Internet. Therefore, passive DNS data that reflects real DNS queries and responses can be used to spy on network activity. In the field of security data analysis, these data have been used as the main or additional source of information to detect malicious activities in the network. However, because these data involve privacy, most of the data of passive DNS data detection and analysis methods for malicious activities only come from the domain name server of a specific organization (school, institution or organization) that coopera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L29/06H04L29/12G06F21/44G06F21/64G06F16/27
CPCH04L67/1095H04L67/1097H04L63/123H04L63/126H04L63/0442G06F21/44G06F21/64G06F16/27G06F2221/2133H04L61/4511
Inventor 李晓东张玉军李颖
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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