臺灣博碩士論文加值系統

網際網路（Internet）與全球資訊網（WWW）的普及不僅改變了資訊的流通方式，也造就電子商務的興起，以電子數位化交易模式的電子商務，已成為全球影響力最具體深遠的行銷通路之一。隨著資訊科技的進步，使電子商務不斷地演進，新興的網路商業營運模式傾巢而出，如影音分享的 YouTube、照片社群分享的 Flicker，以及從校園發跡的社交網站 Face book等都是很好的例子，點對點電子商務（P2P）的經營模式也應運而生，成為新的潮流。
然而電子商務在務實面中，當營運規模逐漸擴增後，所需付出的技術與建置成本提升是非常大幅度的，其中之一為高額的網路流量費用；有幸於用戶寬頻網路的快速發展， FTTH Council 最新調查指出，台灣是全球光纖上網普及率的第四名，以此條件為基礎，利用點對點（P2P）技術可以減少資訊傳遞的成本，當營運規模擴大時，整個系統所需的技術與建置成本將不會大幅提升。
本研究利用 eD2k 鏈結技術作為 P2P 音樂網站中檔案的唯一識別，以用於音樂檔案的傳輸，並控管線上串流音樂廣播流量，藉以大幅減少網站在傳遞此等多媒體資料所需的交通流量。在網站中，為了掌控發布者（Sender）的無可否認性（Non-repudiation），以避免被冒名使用後危及發布者的權益，因此導入 RSA 加密演算法，讓發布者保有私密金鑰（Private Key）作為電子簽章（Electronic Signature），並提供公開金鑰（Public Key）以確認發布者。最終目的是冀望建立一個既安全又合法的環境，讓消費者、供應者與網站（Web Site）建立三贏的局面。

The popularization of the Internet and world wide web（www） not only changed the circulation of information but also springing up E-Commerce which was traded in the mode of electronic digitizing and has become the most powerful in marketing all over the world. During the last several decades, there has been a rapid growth of E-Commerce due to the development of information technology, and there''s a tremendous wave of brand new internet commercial operation model such as YouTube, Flicker, and Face book. As a result, the business model of Peer to Peer（P2P） was presented and has become a new trend.
However, in a pragmatic way, as the scale of the operation increased, so does the demand for technology and the construction cost; one of them is the expensive network traffic fee. Thanks to rapid development of broadband network, which the latest investigation of FTTH Council noted that Taiwan is the fourth place in fiber-optic communication popular rate, on a basis of this, if we utilize P2P technique to reduce the cost of network traffic, the techniques and the building costs of the system needs will not highly arise as the scale of the operation enlarge.
In this research, we use eD2k link technique to identify music files in our P2P music website to perform music file transferring. Control bandwidth of music broadcast streaming by P2P technique to reduce network traffic. In this website, in order to keep sender''s non-repudiation from counterfeiter then hazarding sender''s right, we combine RSA encryption algorithm and let sender hold private key as electronic signature, in the same time, also provide public keys to confirm who sender is. To conclude, our final purpose is to build a legally and safe environment and provide a three-way win situation to consumers, providers, and the web site.

誌謝 i
摘要 ii
Abstract iii
圖目錄 vi
表目錄 vii
第一章 緒論 1
1.1 研究背景 1
1.2 研究動機 2
1.3 研究目的 2
第二章 背景與相關研究 4
2.1 電子商務 4
2.1.1 電子商務發展歷史 4
2.1.2 電子商務應用類型 5
2.1.3 P2P電子商務與相關研究 5
2.2 點對點（P2P）架構 6
2.2.1 層疊網路 10
2.2.2 eD2k鏈結 19
第三章 系統分析與設計 21
3.1 研究假設 21
3.2 需求分析 21
3.3 系統架構的弁?22
3.3.1 K buckets 23
3.3.2 Kademlia 的協議 25
3.3.3 路由查詢機制 26
3.3.4 K buckets 更新 27
3.3.5 節點加入和離開 27
3.4 系統的流程 28
3.4.1 利用案例圖描述系統與使用者的互動關係 29
3.4.2 利用循序圖描述系統運作模式 30
3.5 認證機制 32
3.6 資料表設計 35
第四章 系統實作 41
4.1 個案描述 41
4.2 實作環境 41
4.3 輸出/輸入介面(Interface) 42
4.3.1 建立全球資訊網的介面 42
4.4 P2P檔案傳輸 44
4.5 P2P 音樂串流 46
4.6 系統的安全機制 46
4.7系統的績效 46
4.8 效益分析 47
第五章 結論與未來研究 50
5.1 結論 50
5.2 未來研究 50
參考文獻 51

[1] October 2010 Web Server Survey
http://news.netcraft.com/archives/2010/10/12/october-2010-web-server-survey.html, 2011
[2]World Internet Usage Statistics News and World Population Stats
http://www.internetworldstats.com/stats.htm, 2011
[3]Gartner Says More than 1 Billion PCs In Use Worldwide and Headed to 2 Billion Units by 2014
http://www.gartner.com/it/page.jsp?id=703807, 2011
[4]YouTube May Lose $470 Million In 2009: Analysts
http://www.multichannel.com/article/191223-YouTube_May_Lose_470_Million_In_2009_Analysts.php, 2011
[5]Kalakota R. and A. B. Whinston, Frontiers of Electronic Commerce, Addison-Wesley Publishing Company, New York, 1996.
[6]Rayport J. F. and B. J. Jaworsk, Introdoction to E-commerce, 1e The McGraw-Hill Companiss, Inc, 2001.
[7]Greenstein M. and M. Vasarhelyi, Electronic Commerce：Security, Risk Management, and Control（second edition）, pp. 1-3, McGraw-Hill Irwin, Boston, 2002.
[8]Datta, A., Hauswirth, M., Aberer, K., Beyond "Web of trust": enabling P2P e-commerce, pp. 303-312, 2003.
[9]Chen Xin, P2P-based E-commerce Trust Model and Strategies, pp. 481-483, NSWCTC 2009.
[10]Jones Lin,〝P2P的技術架構文章〞
原文 http://www.digitalobserver.com/111-120/115/reader.htm
轉載 http://bbs.ecstart.com/thread-7505-1-10.html, 2011
[11] Kenneth C. Laudon, E-Commerce 2010 Business. Technology. Society 6e, Pearson, PP. 3-55, 5-28, 2010.
[12]Napster - Wikipedia
http://en.wikipedia.org/wiki/Napster, 2011
[13]Gnutella - Wikipedia
http://en.wikipedia.org/wiki/Gnutella, 2011
[14]Kazaa - Wikipedia
http://en.wikipedia.org/wiki/Kazaa, 2011
[15]Liang J, Kumar R, and Ross KW, The KaZaA overlay: A measurement study. In Proc. of the 19th IEEE Annual Computer Communications Workshop, 2004.
[16]BitTorrent Specification
http://wiki.theory.org/BitTorrentSpecification, 2011
[17]S. Ratnasamy, P. Francis, M. Handley, R. Karp, and S. Shenker. A scalablecontent-addressable network. In Proc. of ACM SIGCOMM, PP. 329–350, 2001.
[18]I. Stoica, R. Morris, D. Liben-Nowell, Kaashoek M. F. Karger, D. R. Karger, F.Dabek, and H. Balakrishnan. Chord: A scalable peer-to-peer lookup protocol for Internet applications. In IEEE/ACM Trans. on Networking, 2002.
[19]Rowstron and P. Druschel, Pastry: Scalable, distributed object location androuting for large-scale peer-to-peer systems. In Proc. of 18th IFIP/ACM Int''l. Conf. Distributed Systems Platforms (Middleware), 2001.
[20]Petar Maymounkov and David Mazieres, Kademlia: A Peer-to-Peer Information System Based on the XOR Metric, 2002.
[21]Roy Thomas Fielding, Architectural Styles and the Design of Network-basedSoftware Architectures, 2000.
[22]IDX-PKI project
http://idx-pki.sourceforge.net/, 2011
[23]HD Radio.NET
http://hdradionet.wordpress.com/, 2011
[24]foobar2000
http://www.foobar2000.org/, 2011
[25]Icecast.org
http://www.icecast.org/, 2011
[26]Hinet
http://www.hinet.net, 2011
[27]The Web Is Dead. Long Live the Internet
http://www.wired.com/magazine/2010/08/ff_webrip/all/1, 2011