移動通信用戶身份保密的增強方法
The Enhanced Methods of User Identity's Confidentiality in Mobile Communication
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摘要: 針對現有移動通信標準中無法完全實現用戶身份保密這一問題,該文提出了分別基于公鑰密碼學和對稱密鑰密碼學的兩種改進措施,將用戶的真實身份隱蔽在眾多的用戶標識里,使攻擊者不能確切地得到用戶身份的具體信息,明顯增強了用戶身份的保密性,并且分析比較了兩種措施的性能.這些改進措施可以用于任何移動通信技術中.Abstract: Focused on the scenario that none of the current standards achieves user identity＇s confidentiality, two enhanced methods are proposed, respectively based on public key cryptography and symmetric key cryptography, in which each user＇s real identity is concealed among many users＇ identities. So attackers can not capture the concrete identity information and user identity confidentiality is improved obviously. The performance of the two methods is analyzed and compared. And the proposed methods can be used in other mobile communication technologies.
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賴溪松,韓亮,張真誠,張玉清,肖國鎮(zhèn)改編.計算機密碼學及其應用.北京:國防工業(yè)出版社,2001:178-184.[2]3GPP TS 33.102 (V6.0.0): 3rd Generation Partnership Project(3GPP); Technical Specification Group (TSG) SA; 3G Security;Security Architecture. Sep. 2003, URL: http:∥www.3gpp.org/ftp/Specs/archive/33_series/33.102/[3]Rhee M Y著,袁超偉等譯.CDMA蜂窩移動通信與網絡安全.北京:電子工業(yè)出版社,2002:241-243.[4]Stinson D R著,馮登國譯.密碼學原理與實踐.北京:電子工業(yè)出版社,2003:172-176.[5]Curtis H W. Subscriber authentication and security in digital cellular networks and under the mobile Internet protocol. [Master Thesis], The University of Texas at Austin, May 2001, URL:http:∥www. portelligent.com/forms/HCThesis.pdf -
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