物理隔离和网闸的技术原理浅析

物理隔离技术是一种越来越受到重视的安全技术,它在需求高安全性的部门得到越来越广泛的应用。本文从拓扑学的观点分析了物理隔离技术在OSI七层协议模型中所处的角色,阐述了网络隔离的几种形式以及物理隔离在网络隔离中的地位。在物理隔离技术中,数据的转发是隔离技术关键。在分析了传统数据转发模型的缺陷的基础上,建立了物理隔离中的数据安全转发模型,对物理隔离的数据转发的安全措施进行了理论研究,并建立了内网的安全策略。

Research on Data Exchange and Air Gap of GAP Technoloy

The technology of Physical Isolation (Air Gap)is taken increasing importance to the system and network security. Thirdly,grounded on the analysis of the role of Physical Isolation technology in OSI model,several styles of network isolation are introduced and the position of Physical Isolation technology in network isolation is expounded. As data transference is the essential part of Physi-cal Isolation,based on the analysis of the drawbacks of the traditional data transference model,a new security data transferrence model is established,and the measurements and strategies to ensure security data transference are discussed.