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DDoS attack joint defense system and method based on blockchain

A defense system and blockchain technology, applied in the field of blockchain-based DDoS attack joint defense systems, can solve problems such as single-point attacks and system hidden dangers

Active Publication Date: 2021-03-12
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the centralized network control in SDN has the risk of single-point attack, which is always a hidden danger of the system

Method used

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  • DDoS attack joint defense system and method based on blockchain
  • DDoS attack joint defense system and method based on blockchain
  • DDoS attack joint defense system and method based on blockchain

Examples

Experimental program
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Effect test

Embodiment 1

[0085] Such as figure 1 As shown, a block chain-based DDoS attack joint defense system of the present invention includes a terminal device, an edge device and a block chain, at least one terminal device, and the origin of the DDoS attack is the terminal device; at least one edge device and all The Ethereum client is deployed, and the edge device joins the blockchain network as an edge node; the device information sharing smart contract and the device filtering smart contract are deployed in the blockchain, and the blockchain is used to realize each edge node based on the blockchain consensus mechanism information sharing among them. The edge device is used for DDoS abnormal detection, obtains DDoS abnormal traffic information, stores DDoS abnormal traffic information through local data, and uploads DDoS abnormal traffic information to the blockchain based on device information sharing smart contracts; based on attacking device filtering rules and DDoS abnormal traffic Informa...

Embodiment 2

[0141] The block chain-based DDoS attack joint defense method of the present invention implements the filtering of the DDoS attack initiating device through the block chain-based DDoS attack joint defense system disclosed in Embodiment 1.

[0142] Such as Figure 4 As shown, the method includes the following steps:

[0143] S100, the edge device performs DDoS abnormality detection, obtains DDoS abnormal traffic information, stores the DDoS abnormal traffic information through the local data of the edge device, and uploads the DDoS abnormal traffic information to the blockchain based on the device information sharing smart contract, and the blockchain is based on the blockchain The consensus mechanism realizes information sharing between each edge node;

[0144] S200. Based on the attacking device filtering rules and DDoS abnormal traffic information, the blockchain sends the DDoS attacking device filtering information to the edge node through the device filtering smart contra...

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Abstract

The invention discloses a DDoS attack joint defense system and method based on blockchain, belongs to the technical field of DDoS attack defense, and aims to solve the technical problem of how to defend DDoS attacks safely, quickly and effectively. The system comprises at least one terminal device; at least one piece of edge equipment which is provided with an Ethereum client; a blockchain which is provided with a device information sharing smart contract and a device filtering smart contract, wherein the blockchain is used for realizing information sharing among the edge nodes based on a blockchain consensus mechanism, and the edge equipment is used for carrying out DDoS anomaly detection to obtain DDoS anomaly traffic information, storing the DDoS anomaly traffic information through local data, and uploading the DDoS anomaly traffic information to the blockchain based on the device information sharing smart contract.

Description

technical field [0001] The invention relates to the technical field of DDoS attack defense, in particular to a block chain-based DDoS attack joint defense system and method. Background technique [0002] With the rapid development of 5G and the Internet of Things (IoT) in recent years, the Internet of Everything has become an unchangeable trend. Security issues are ignored in the system design of most IoT devices, and hackers can easily use the security vulnerabilities of IoT devices as new tools for traditional network attacks (such as Mirai, Aidra and other malicious codes infecting smart devices) to launch DDoS (Distributed denial of service) attack, resulting in serious consequences such as denial of service and related service offline. [0003] For DDoS attacks, the traditional way is to defend from the attacked target, but the high-frequency data packet arrival rate and the lack of connection context make the deployment scheme at the attacked target only limited stati...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L29/08
CPCH04L63/1458H04L63/1425H04L63/0263H04L67/1097
Inventor 禹继国王越闫碧薇王桂娟董安明
Owner QILU UNIV OF TECH
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