External terminal protection device and protection system for data flow control
US11170133B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2019 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Jan 16, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0254
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention discloses an external terminal protection device for data flow control and a corresponding protection system. The external terminal protection device includes: an interface control module, used for providing a plurality of data interfaces respectively connected to a protected host and one or more external devices; and a system control module, used for monitoring in real time a data transmission state of each data interface in the interface control module, and controlling the data flow of each data interface. The present invention realizes the functions of performing protocol filtering and auditing on various types of data flow without installing flow monitoring and security protection software on the protected host, and achieves the effects of low-latency network auditing and high-reliability protocol filtering, thereby comprehensively eliminating potential security hazards such as Trojan Horse virus implantation and flow anomaly that may be generated by the interfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.