【摘要】 软件租赁是ASP应用模式的显著特征。针对基于终端服务的软件租赁技术存在网速瓶颈的问题,提出了一种基于网络加密认证的软件租赁技术应用方案:通过对Windows环境下网络封包过滤技术的分析比较,在服务器端使用NDIS中间驱动程序,在客户端使用SPI,采用DES3加密技术和透明密钥管理机制,实现了CAXA实体设计软件在Internet上的租赁应用。结果表明,该方案可以满足三维CAD类应用软件的高实时性要求。更多还原

【Abstract】 Software leasing is a remarkable characteristic of ASP(application service provider) application mode.Aiming at the network bottleneck problem in the software leasing technique based on terminal service,software leasing technique is discussed and realized based on network authentication,with the implement theory.By analysis and comparing network packet filter technology based on windows,NDIS intermediate drivers,SPI is adopted on server and client separately.DES3 encryption technology and transparent key management are used.The leased software CAXA can be fulfilled via internet.The result indicates that this scheme can satisfy the high real-time requirement for three-dimension CAD application.更多还原