A Security Mechanism for Internet-Based Synchronous Collaborative CAD/CAM System

Journal of South China University of Technology (Natural Science Edition) ›› 2005, Vol. 33 ›› Issue (9): 20-24.

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A Security Mechanism for Internet-Based Synchronous Collaborative CAD/CAM System

Liu Wei-we Zhou Lai-shu Zhuang Hai-jun Yuan yuan

Research Center of CAD/CAM Engineering,Naming Univ.of Aeronautics＆ Astronautics Nanjing 210016,Jiangsu,China

Received:2004-11-22 Online:2005-09-25 Published:2005-09-25
Contact: 刘巍巍(1977-)，男，博士生，主要从事基于Web的CAD／CAM、协同设计与信息安全方面的研究． E-mail:liuww9899@ sina.corn
About author:刘巍巍(1977-)，男，博士生，主要从事基于Web的CAD／CAM、协同设计与信息安全方面的研究．
Supported by:
教育部高等学校优秀青年教师教学科研奖励计划资助项目；江苏省青年科技基金资助项目(BQ2000004)

Abstract

Abstract:

The architecture of a synchronous collaborative CAD/CAM system C-Superm an is first introduced in this paper.Next,by analyzing the latent security threats and the running requirements of C-Superm an,a security mechanism for this kind of system is presented.Then,a four-tier security reference model for the synchronous col-laborative CAD/CAM system is constructed. Moreover,according to the security process model of C-Superman,SHA-1 hash algorithm is used twice for the identity authentication,and the transport security of data is finally im-Dlemented by using a mixed encryption method of AES and RSA,giving consideration to the synchronization of the collaborative conversation.

Key words: collaborative CAD/CAM , security, identity authentication, encryption, transport security

Liu Wei-we Zhou Lai-shu Zhuang Hai-jun Yuan yuan. A Security Mechanism for Internet-Based Synchronous Collaborative CAD/CAM System[J]. Journal of South China University of Technology (Natural Science Edition), 2005, 33(9): 20-24.

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A Security Mechanism for Internet-Based Synchronous Collaborative CAD/CAM System

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