本文介紹了安全隔離和信息交換技術，分別討論了網絡控制、數據加密及數據交換三個關鍵技術的實現原理，提出了一種新的網絡終端信息數據交換安全機制，詳細論述了該安全機制的設計方案。該信息數據安全交換機制采用軟硬件結合的方法，實現了信息數據的快速交換，保障了網絡終端信息數據的安全。
關鍵詞：加密、網絡檢測控制、數據交換、DSP

【Abstract】： This paper introduces the new technology of security isolation and information switch. After discusses three key technologies which are network control、data encrypt and data switch, This paper brings forward a new network terminal information switch mechanism, and a particular discuss about the design project. The information security switch mechanism adopts the method of hardware and software combination to realize the information switch, and ensures the security of network terminal information.
Keyword： encrypt 、network check and control 、 Information exchange