本文選題：云存儲 + 糾刪碼��； 參考：《南京航空航天大學(xué)》2013年碩士論文

【摘要】：云計算開啟了新的IT革新，開創(chuàng)了新的工作模式，正在被越來越多的企業(yè)應(yīng)用。數(shù)據(jù)量日益激增的今天，用戶對存儲數(shù)據(jù)的硬件產(chǎn)品采購也越來越多，這就導(dǎo)致很多硬件資源的浪費(fèi)。云存儲作為云計算衍生的新服務(wù)，有著低成本、避免資源浪費(fèi)、高效、可擴(kuò)展性、可以隨時隨地存取數(shù)據(jù)等優(yōu)勢而受到很多用戶的青睞，但是由于數(shù)據(jù)是通過網(wǎng)絡(luò)傳輸存儲在各個存儲節(jié)點(diǎn)，并不能保證在傳輸中的安全性，所以如何安全的保存數(shù)據(jù)是現(xiàn)在各大公司以及科研機(jī)構(gòu)研究的熱點(diǎn)。 本文首先介紹數(shù)據(jù)存儲的發(fā)展歷程，重點(diǎn)介紹了云存儲的相關(guān)概念和技術(shù)，分析了云存儲在應(yīng)用中的安全問題，并給出了目前解決該問題的一些關(guān)鍵技術(shù)和安全方案。對于數(shù)據(jù)在網(wǎng)絡(luò)傳輸中的安全性采用數(shù)據(jù)分散法，將用戶的數(shù)據(jù)分散存儲在各個存儲節(jié)點(diǎn)上,并研究了目前的幾種數(shù)據(jù)分散法，通過對比將低密度糾刪碼（LDPC）技術(shù)引入到云存儲系統(tǒng)中，并通過程序?qū)嶒?yàn)對LDPC碼在數(shù)據(jù)分離、數(shù)據(jù)恢復(fù)及數(shù)據(jù)安全方面的性能進(jìn)行了分析，保障了數(shù)據(jù)傳輸過程中安全性的同時更是提高了數(shù)據(jù)在編碼過程中的效率。 在此基礎(chǔ)上，設(shè)計了云存儲系統(tǒng)的安全架構(gòu)，，包括訪問層、應(yīng)用接口層、基礎(chǔ)管理層和存儲層。訪問層是云存儲的窗口，通過設(shè)計友好的界面使得用戶能夠方便地使用云存儲服務(wù)；應(yīng)用接口層根據(jù)用戶的需求開發(fā)出不同的接口，包括文件服務(wù)接口、連接接口、存儲設(shè)備管理接口以及數(shù)據(jù)庫接口；基礎(chǔ)管理層是云存儲系統(tǒng)設(shè)計的核心部分，對文件的管理以及保障文件在傳輸過程的安全性都在此層設(shè)計；存儲層是根據(jù)存儲設(shè)備的選擇設(shè)計相應(yīng)的設(shè)備管理流程。最后利用現(xiàn)有的資源實(shí)現(xiàn)了具有以上安全架構(gòu)的云存儲系統(tǒng)平臺，通過測試驗(yàn)證了系統(tǒng)功能的可行性和數(shù)據(jù)在存儲過程中的安全性。
[Abstract]:Cloud computing has opened up new IT innovations and new work models, and is being applied by more and more enterprises. With the increasing increase of data volume, users purchase more and more hardware products to store data, which leads to the waste of many hardware resources. Cloud storage, as a new service derived from cloud computing, has the advantages of low cost, avoiding waste of resources, high efficiency, expansibility, being able to access data anytime, anywhere and so on. However, because the data is transmitted through the network and stored in each storage node, it can not guarantee the security in the transmission, so how to save the data safely is now the research hotspot of the major companies and scientific research institutions. In this paper, the development of data storage is introduced, the related concepts and technologies of cloud storage are introduced, the security problems of cloud storage in application are analyzed, and some key technologies and security schemes to solve this problem are given. For the security of data transmission in the network, the data dispersion method is adopted, and the user data is distributed and stored on each storage node, and several current data dispersion methods are studied. By comparing the low density erasure code (LDPC) technology into cloud storage system, the performance of LDPC code in data separation, data recovery and data security is analyzed through program experiments. It not only ensures the security of data transmission, but also improves the efficiency of data coding. On this basis, the security architecture of cloud storage system is designed, including access layer, application interface layer, basic management layer and storage layer. The access layer is a window for cloud storage, and the user can easily use cloud storage service by designing friendly interface, and the application interface layer develops different interfaces according to the user's needs, including file service interface and connection interface. The basic management layer is the core part of the cloud storage system design, and the management of the files and the security of the files in the transmission process are all designed in this layer. The storage layer is to design the corresponding device management flow according to the choice of storage device. Finally, the cloud storage system platform with the above security architecture is implemented by using the existing resources. The feasibility of the system function and the security of the data in the stored procedure are verified by testing.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TP333

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本文編號：1948951