摘要
介绍了同步协同CAD/CAM系统C-Superman的体系结构,在分析系统运行中面临的潜在安全威胁和运行要求的基础上,提出了一套适用于该类系统的安全机制.文中构造了同步协同CAD/CAM系统的4层安全参考模型,结合C-Superman的安全过程模型,使用两次SHA-1散列运算进行用户身份的认证,并基于AES和RSA混合加密体制实现了数据的安全传输,同时兼顾了协同会话的同步性要求.
The architecture of a synchronous collaborative CAD/CAM system C-Superman is first introduced in this paper. Next, by analyzing the latent security threats and the running requirements of C-Superman, a security mechanism for this kind of system is presented. Then, a four-tier security reference model for the synchronous collaborative 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 implemented by using a mixed encryption method of AES and RSA, giving consideration to the synchronization of the collaborative conversation.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2005年第9期20-24,共5页
Journal of South China University of Technology(Natural Science Edition)
基金
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)
关键词
协同CAD/CAM
安全
身份认证
加密
传输安全
collaborative CAD/CAM
security
identity authentication
encryption
transport security
