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研究生：	王峙中 Wang, Chieh-Chung
論文名稱：	結合權限控管於數位文件保護系統之設計與實現 An Implementation of Digital Document Protection System with Right Management
指導教授：	王明習 Wang, Ming-Si
學位類別：	碩士 Master
系所名稱：	工學院 - 工程科學系碩士在職專班 Department of Engineering Science (on the job class)
論文出版年：	2008
畢業學年度：	96
語文別：	中文
論文頁數：	58
中文關鍵詞：	權限控管、AES加密、文件保護
外文關鍵詞：	AES Encryption, Right Management, Document Protection
相關次數：	點閱：53 下載：1
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隨著資訊技術的發達以及目前硬體科技快速發展，台灣產業型態走向知識產業型態時，競爭力主要來自於「資訊」的價值，不管是市場調查、產品分析、專利發明以及顧客資訊等，幾乎都是以數位資訊方式存在於公司的資訊設備中。於是如何確實保護資料與文件檔案，又能解決數位資訊在企業內部廣泛流通又不怕資訊被不當使用而致使資訊資產受到傷害等問題，都成為當今最需思考解決與最關切的議題。
本論文利用Java Swing技術實作出可在瀏覽器介面執行之數位文件保護系統，在主從架構的環境下應用AES加密演算法將數位文件加密逕行傳輸後集中保管，且在設計上採用群組權限控管以及線上瀏覽機制相互配合，可讓數位文件在受到保護的前提下易於控管與方便協同作業。

Along with the prosperity of information technique and the rapidly development of IT hardware, most of the industries of Taiwan have been transferred to the knowledge orientation. Under this environment the main competitiveness comes from the value of “information”. Almost all of the information is stored in the information facilities via any digital forms. Documents in digital form are easily to be duplicated and distributed. How to protect these digital documents and archiving them securely is a serious issue to be faced.
In this study, the technique of Java Swing is applied to develop a digital document protect system which can be viewed under web browser. The system is under client-server architecture and the documents stored in the server are encrypted via AES technique for increasing its security. The group authorized mechanism and on-line review capabilities can provide easily using and controlling of the digital documents.

中文摘要................................................................................................................................i
Abstract................................................................................................................................ii
誌謝.....................................................................................................................................iii
目錄.....................................................................................................................................iv
表目錄.................................................................................................................................vi
圖目錄................................................................................................................................vii
第1章 緒論.........................................................................................................................1
1.1 研究背景................................................................................................................1
1.2 研究動機與目的....................................................................................................3
1.3 論文架構................................................................................................................5
第2章 文件管理系統基本架構.........................................................................................6
2.1資料外洩與資料防護.............................................................................................6
2.1.1 資料外洩方式.............................................................................................7
2.1.2 資料防護.....................................................................................................9
2.2 密碼學...................................................................................................................11
2.2.1 對稱式與公開金鑰加密系統...................................................................12
2.2.2 資料加解密演算法...................................................................................15
2.2.2.1 3DES加密演算法...........................................................................15
2.2.2.2 AES加密演算法..............................................................................16
2.3 權限控管機制......................................................................................................17
第3章 系統設計與實現...................................................................................................19
3.1 系統架構..............................................................................................................19
3.2 系統保護機制......................................................................................................24
3.2.1 加解密模組...............................................................................................24
3.2.2 線上閱覽機制...........................................................................................27
3.2.3可攜式離線文件........................................................................................29
3.3 權限控管機制......................................................................................................30
第4章 系統實作與成果...................................................................................................32
4.1 實作環境與軟硬體設備......................................................................................32
4.2 文件加密系統伺服器端......................................................................................35
4.3 文件加密系統用戶端..........................................................................................40
4.4 文件加密後之成果..............................................................................................43
4.5 線上閱覽保護機制..............................................................................................45
4.6 可攜式離線文件..................................................................................................50
第5章 結論與未來展望...................................................................................................53
5.1 結論......................................................................................................................53
5.2 未來展望..............................................................................................................54
參考文獻.............................................................................................................................55
自述....................................................................................................................................58
                                    

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[22] 高級加密標準(Advanced Encryption Standard，AES), http://en.wikipedia.org/wiki/Advanced_Encryption_Standard
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校內：2010-08-19公開
校外：2011-08-19公開

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