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研究生:梁儷齡
研究生(外文):Li-ling Liang
論文名稱:行動相關用戶在無線網路之安全群組通訊的金鑰管理
論文名稱(外文):Mobility-Matching Key Management for Secure Group Communications in Wireless Networks
指導教授:高榮鴻高榮鴻引用關係
指導教授(外文):Rung-hung Gau
學位類別:碩士
校院名稱:國立中山大學
系所名稱:通訊工程研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2006
畢業學年度:94
語文別:中文
論文頁數:47
中文關鍵詞:金鑰更新行動用戶之相關性中央集權式的金鑰管理群組通訊
外文關鍵詞:Secure Group CommunicationsKey UpdatingCorrelated RelationshipsKey Management
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在這篇論文中,我們提出了一個應用於群組通訊方面的金鑰管理機制有效方法,並配合上行動用戶成員彼此間的相關性,使得群組通訊系統在做金鑰更新時可以更有效率、更少花費並節省時間。

在群組通訊網路中,每當有行動用戶成員新加入或離開此群組,群組中有關網路安全方面的金鑰管理機制就必須做更新的動作,以確保只有目前有符合資格的行動用戶成員得以在此群組通訊中來接受網路應用服務、資料傳輸、訊息交換……等的無線通訊行為。大部分的用邏輯樹狀結構的金鑰管理機制,其邏輯樹狀結構中的骨幹部分都是可變動的,以適應於在做金鑰更新時可以有效率且方面於管理。相反地,本論文中所提出的方法,反而是著重在行動用戶成員的群組關係,我們利用中央集權式的金鑰管理機制方法,並固定了其邏輯樹狀結構的骨幹之分支度與深度,再加上考慮了行動用戶成員之間的相關性,當行動用戶成員加入此群組通訊服務時,是以群組為單位而非單一行動用戶成員的加入,利用此特性我們可以有效地管理此群組通訊中的行動用戶成員,再經由程式模擬時,計算每當有行動用戶成員的更動,必須做金鑰更新時其每單位時間內所花的平均花費可發現,可以有效地節省花費並改善系統效能。
In this thesis, we propose and analyze a multicast key backbone for secure group communications. We also utilize the correlated relationships between the mobile users in the wireless communications networks. When a batch member joins or leaves the group communications, the system has to update and distribute encryption keys to assure that only active members could receive the latest information. In previous tree-based multicast key management schemes, the depth of the key tree is unbounded and analytically deriving the exact value of the corresponding average update cost remains an open problem. And in previous schemes, the different mobile user arrives in and leaves from the system at different time. In contrast, the depth of the proposed multicast key backbone is fixed and the arriving or leaving users are more than one. We utilize these two characteristics and simulate the system to get the average update cost per time unit. We can find that this scheme can improve the efficiency of the system in some special cases when updating the new key.
第一章序論........................................1
1.1 研究背景與動機................................1
1.1.1 網路安全....................................1
1.1.2 行動用戶的相關性............................3
1.1.3 綜合討論....................................3
1.2 論文架構......................................4
第二章中央集權式的金鑰管理機制系統架構............5
2.1 存取控制......................................5
2.2 中央集權式群組金鑰管理........................6
2.2.1 新成員加入..................................7
2.2.2 舊成員離開..................................8
2.3 平衡樹........................................9
2.4 行動用戶的相關性..............................9
2.5 邏輯樹狀架構骨幹之固定........................10
第三章行動相關用戶的金鑰管理......................11
3.1 行動用戶的機率模型............................11
3.1.1 行動用戶的行為模式..........................11
3.1.2 行動用戶的相關性............................13
3.1.3 行動用戶行為的模擬機率模型..................15
3.2 系統的邏輯樹狀架構............................17
3.2.1 系統初始狀態................................17
3.2.2 新成員加入且系統無服務的行動用戶成員........18
3.2.3 新成員加入且系統有正在服務的行動用戶成員....19
3.2.4 舊成員離開且系統尚有正在服務的行動用戶成員..22
3.2.5 舊成員離開且系統已無服務的行動用戶成員......25
第四章模擬結果與討論..............................26
第五章結論........................................36
參考文獻..........................................38
[1] Rung-Hung Gau and Chung-Wei Lin, “Location management of correlated mobile users in the UMTS,” IEEE Transactions on Mobile Computing, Vol.4, No. 6, Nov.-Dec. 2005, pp. 641 – 651.
[2] Rung-Hung Gau, “Performance Analysis of Multicast Key Backbone for Secure Group Communications,” IEEE Communications Letters, Vo. 10, No.7, July 2006, pp. 555 –557
[3] Yu-Lun Huang, Shiuhpyng Shieh, Fu-Shen Ho and Jian-Chyuan Wang,“Efficient key distribution schemes for secure media delivery in pay-TV systems,” IEEE Transactions on Multimedia, Vol. 6, No. 5, Oct. 2004, pp.760 – 769.
[4] Jen-Chiun Lin, Feipei Lai and Hung-Chang Lee,"Efficient Group Key Management Protocol with One-Way Key Derivation,” The IEEE Conference on Local Computer Networks, 15-17 Nov. 2005, pp. 336 – 343.
[5] Yinian Mao, Yan Sun, Min Wu and K. J. Ray Liu,“Dynamic join-exit amortization and scheduling for time-efficient group key agreement,”INFOCOM 2004. Twenty-third Annual Joint Conference of the IEEE Computer and Communications Societies, Vol. 4, 7-11 March 2004, pp. 2617 – 2627.
[6] Sandro Rafaeli and David Hutchison, “A Survey of Key Management for Secure Group Communication,” ACM Computing Surveys, Vol. 35, No. 3, September 2003, pp. 309 – 329.
[7] Yan Sun, Wade Trappe and K .J. Ray Liu, “A scalable multicast key management scheme for heterogeneous wireless networks,” IEEE/ACM Transactions on Networking, Vol. 12, No. 4, Aug. 2004, pp. 653 – 666.
[8] Yan Sun and K. J. Ray Liu, “Securing dynamic membership information in multicast communications,” INFOCOM 2004. Twenty-third AnnualJoint Conference of the IEEE Computer and Communications Societies, Vol. 2, 7-11 March 2004, pp. 1307 – 1317.
[9] Chung Key Wong, Mohamed Gouda and Simon S. Lam, “Secure Group Communications Using key Graphs,” IEEE/ACM Transactions on Networking, Vol. 8, No. 1, Feb. 2000, pp. 16 – 30.
[10] Nakamura Yuichi and Hiroaki Kikuchi, “Efficient key management based on the subset difference method for secure group communication,” AINA 2005.19th International Conference on Advanced Information Networking and Applications, 2005. Vol. 1, 28-30 March 2005, pp. 707 – 712.
[11] Qiong Zhang and Yuke Wang, “A centralized key management scheme for hierarchical access control,” Global Telecommunications Conference, 2004. GLOBECOM ''04. IEEE, Vol. 4, 29 Nov. – 3 Dec. 2004, pp. 2067 – 2071.
[12] Sheldon M. Ross, Introduction to Probability Models, 7th Edition, 2000, Academic Press, San Diego, CA, USA.
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