Abstract: Internet's security is more and more important for E-commerce.VPN is one of E-commerce key technologies and has significantapplicationvalues.At Present,DTP-based middleware has been popular in many critical-business fields.So in this paper,after commonnessbetween VPN and DTP-based middleware is discussed,the writer thinks that it's a very practical to establish VPN on DTP-based middleware.In the end of this paper,a method and transit diagrams is given.

摘要： Internet正在向电子商务发展，其上的安全显得越来越重要。虚拟专用网（VPN）作为其中的关键技术之一，具有重大的应用前景。同时，基于DTP的中间件已在许多关键任务（商务）领域得到巨大应用，因此在讨论了VPN和DTP中间件的共性后，认为在DTP中间件上建立VPN是非常实际、非常现实的事情，并给出了在DTP中间件上建立VPN的方法和改进后的粗粒度状态图。

关键词: 分布式事务处理（DTP）中间件, 虚拟专用网, 交易监控程序, 通信管理程序

CLC Number: 

• TP393.08