基于虛擬卷技術(shù)的安全U盤(pán)研究與實(shí)現(xiàn)
本文選題:安全U盤(pán) 切入點(diǎn):虛擬卷技術(shù) 出處:《華中科技大學(xué)》2013年碩士論文
【摘要】:隨著計(jì)算機(jī)的普及,U盤(pán)已經(jīng)成為人們?nèi)粘9ぷ髦胁豢扇鄙俚男畔鬏敼ぞ?但是隨之而來(lái)引發(fā)的安全問(wèn)題卻也成為了人們更為關(guān)注的事項(xiàng)。 針對(duì)U盤(pán)中有些信息可以公開(kāi),而有些私密信息需要安全保護(hù)的需求,本文在分析研究虛擬卷技術(shù)的基礎(chǔ)上,提出了一個(gè)基于虛擬卷技術(shù)的安全U盤(pán)系統(tǒng),把普通U盤(pán)轉(zhuǎn)變成一個(gè)常規(guī)卷和一個(gè)虛擬的安全卷。其中安全卷內(nèi)信息使用AES加密算法以加密保護(hù),而常規(guī)卷的讀寫(xiě)使用和普通U盤(pán)完全一樣,這樣既有效地防止了機(jī)密信息的泄漏和擴(kuò)散,又不失U盤(pán)方便、靈活的特性。基于虛擬卷技術(shù)的安全U盤(pán)關(guān)鍵是要實(shí)現(xiàn)安全卷的生成。 首先,本文詳細(xì)介紹了存儲(chǔ)虛擬化分類,提出了U盤(pán)存儲(chǔ)虛擬化實(shí)現(xiàn)方案,即在物理卷驅(qū)動(dòng)和文件系統(tǒng)驅(qū)動(dòng)程序之間寫(xiě)入一個(gè)安全卷驅(qū)動(dòng)程序。 其次,借鑒虛擬磁盤(pán)技術(shù)研究,得出安全卷生成的技術(shù)原理,接著研究了通過(guò)Windows卷掛載原理實(shí)現(xiàn)安全卷在硬盤(pán)上顯示,并進(jìn)一步研究了通過(guò)Windows的卷識(shí)別原理實(shí)現(xiàn)對(duì)安全卷內(nèi)文件訪問(wèn)。 再次,分析了Windows的存儲(chǔ)管理,主要是Windows對(duì)安全卷內(nèi)文件的I/O操作管理,結(jié)合加解密算法的研究,實(shí)現(xiàn)了安全卷內(nèi)文件加解密。 最后,,綜合應(yīng)用以上的研究成果,從企業(yè)管理實(shí)踐的角度出發(fā),設(shè)計(jì)了整個(gè)安全U盤(pán)系統(tǒng),并對(duì)系統(tǒng)安全和性能進(jìn)行了分析。
[Abstract]:With the popularity of computers, USB disk has become an indispensable tool for information transmission in people's daily work, but the security problems caused by it have become a matter of more concern.In view of the demand that some information in U disk can be disclosed and some private information need security protection, this paper presents a security U disk system based on virtual volume technology based on the analysis and research of virtual volume technology.Convert a regular U disk into a regular volume and a virtual security volume.The AES encryption algorithm is used to protect the information in the secure volume, and the reading and writing of the conventional volume is exactly the same as that of the ordinary U disk, which not only effectively prevents the leakage and diffusion of the confidential information, but also does not lose the convenience and flexibility of the U disk.The key of security U disk based on virtual volume technology is to realize the generation of security volume.Firstly, this paper introduces the classification of storage virtualization in detail, and proposes a realization scheme of U disk storage virtualization, which is to write a secure volume driver between the physical volume driver and the file system driver.Secondly, draw lessons from the research of virtual disk technology, obtain the technical principle of security volume generation, and then study the principle of Windows volume mount to realize the security volume display on the hard disk.Furthermore, the paper studies how to access the secure files in volume by the principle of volume recognition based on Windows.Thirdly, the storage management of Windows is analyzed, which is mainly the I / O operation management of secure volume files by Windows. Combining with the research of encryption and decryption algorithm, the encryption and decryption of secure files in volume is realized.Finally, the whole security U disk system is designed from the point of view of enterprise management practice, and the security and performance of the system are analyzed.
【學(xué)位授予單位】:華中科技大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類號(hào)】:TP333.2;TP309.7
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