Network data isolation system and data transmission method
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 东方惠科防伪技术有限责任公司
- Publication Date
- 2007-01-31
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The present invention relates to the field of network security, and more specifically relates to a network data isolation system and a data transmission method. Background technique
[0002] How to realize security information exchange between external network and internal network has always been an important issue in the field of network security. The current network isolation and protection methods are mainly to install firewalls at the network borders, and monitor and control the traffic entering and leaving the network through the firewalls to ensure the security of exchanged information. However, the firewall can only control the network connection in a logically isolated manner, and its system is easy to be breached.
[0003] Security isolation products can be divided into two categories in terms of application scope. One is host-based isolation cards. The typical method is to achieve isolation by switching the network port and hard disk interfa...