【摘要】：隨著計(jì)算機(jī)網(wǎng)絡(luò)和通信技術(shù)的飛速發(fā)展,人們的生活和工作得到了極大的便利,但是隨之而來的網(wǎng)絡(luò)安全問題也給我們帶來了極大的威脅。怎樣從海量的網(wǎng)絡(luò)安全數(shù)據(jù)中發(fā)現(xiàn)隱藏在數(shù)據(jù)背后的關(guān)系和規(guī)律成為了一個(gè)新興的研究方向,數(shù)據(jù)可視化技術(shù)與網(wǎng)絡(luò)安全研究的結(jié)合提供了一種高效的研究方式,通過直觀的圖形界面和方便的交互,網(wǎng)絡(luò)安全數(shù)據(jù)分析者可以更高效地發(fā)現(xiàn)網(wǎng)絡(luò)中潛藏的威脅以及數(shù)據(jù)背后錯(cuò)綜復(fù)雜的關(guān)系。本文的主要工作是采用多種可視化方法對(duì)網(wǎng)絡(luò)敏感信息進(jìn)行可視化展示,并將基于Lucene的改進(jìn)版全文搜索引擎與前后端分離架構(gòu)的網(wǎng)絡(luò)安全數(shù)據(jù)可視化系統(tǒng)結(jié)合,為系統(tǒng)提供更快的響應(yīng)速度以提升用戶體驗(yàn)和探索效率,使網(wǎng)絡(luò)安全分析人員對(duì)網(wǎng)絡(luò)安全的感知能力得到提升,從而減少網(wǎng)絡(luò)安全問題給人們帶來的損失。本文首先介紹了研究背景和意義以及網(wǎng)絡(luò)安全可視化在學(xué)術(shù)界和工業(yè)界的研究和發(fā)展現(xiàn)狀。接著對(duì)不同數(shù)據(jù)源的網(wǎng)絡(luò)安全數(shù)據(jù)和網(wǎng)絡(luò)安全日志進(jìn)行了詳細(xì)的介紹,并對(duì)幾種常見的網(wǎng)絡(luò)安全可視化方法進(jìn)行了探究。然后研究了全文搜索引擎工具包Lucene的核心算法,提出了基于Lucene的改進(jìn)版搜索結(jié)果排序算法,并設(shè)計(jì)實(shí)驗(yàn)對(duì)排序評(píng)分算法改進(jìn)前后的檢索結(jié)果做了對(duì)比。接著研究了數(shù)據(jù)可視化中的幾種常見布局算法和可視化方法,結(jié)合知識(shí)圖譜的概念進(jìn)行網(wǎng)絡(luò)安全數(shù)據(jù)可視化分析。最后,設(shè)計(jì)了系統(tǒng)的架構(gòu),詳細(xì)介紹了數(shù)據(jù)預(yù)處理模塊和系統(tǒng)核心模塊,完成了前后端分離的網(wǎng)絡(luò)安全數(shù)據(jù)可視化系統(tǒng)的開發(fā),并對(duì)系統(tǒng)主要模塊進(jìn)行了展示。
[Abstract]:With the rapid development of computer network and communication technology, people's life and work have been greatly convenient, but the following network security problems have also brought us a great threat. How to find the relationship and law hidden behind the data from the massive network security data has become a new research direction, and the combination of data visualization technology and network security research provides an efficient research method. Through intuitive graphical interface and convenient interaction, network security data analysts can more efficiently discover the hidden threats in the network and the complex relationship behind the data. The main work of this paper is to use a variety of visualization methods to visually display the network sensitive information, and to combine the improved full-text search engine based on Lucene with the network security data visualization system based on the separation architecture of the front and rear. It provides the system with faster response speed to improve the user experience and exploration efficiency, and improves the perception ability of network security analysts to network security, so as to reduce the loss caused by network security problems. This paper first introduces the research background and significance, as well as the research and development status of network security visualization in academia and industry. Then the network security data and network security logs of different data sources are introduced in detail, and several common visualization methods of network security are discussed. Then the core algorithm of full-text search engine kit Lucene is studied, and an improved version of search result sorting algorithm based on Lucene is proposed, and the retrieval results before and after the improvement of sorting scoring algorithm are compared with each other. Then several common layout algorithms and visualization methods in data visualization are studied, and the network security data visualization analysis is carried out combined with the concept of knowledge graph. Finally, the architecture of the system is designed, the data preprocessing module and the core module of the system are introduced in detail, the development of the network security data visualization system separated from the front and rear is completed, and the main modules of the system are displayed.
【學(xué)位授予單位】：浙江工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP393.08

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本文編號(hào)：2491210