National Bureau encryption security video data exchange card and exchange method based on FPGA and DSP

Abstract

The invention relates to a National Bureau encryption security video data exchange card and an exchange method based on FPGA and DSP, and solves the problems that an existing method is not reasonable.The National Bureau encryption security video data exchange card comprises a PCB circuit board; the PCB circuit board is provided with a clock generation and management module and a power conversionand management module; the PCB circuit board is provided with a FPGA chip that is connected with a FPGA peripheral circuit; the PCB circuit board is provided with a plurality of SFP+10 gigabit opticalports and at least one PCI-E bus interface; the FPGA chip is connected with at least two DSP processors that are connected with a DSP peripheral circuit. The advantages are that the FPGA, DSP, DMA, 10 gigabit fiber data transmission, DSP national bureau algorithm and many key technologies that support safety video stream and data exchange formats are organically combined on a security video dataexchange card; the exchange card is centralized in control, simple in structure, efficient in transmission, compatible in data formats, good in file expandability, safe and reliable in data exchange,can support an existing one-way optical gate, and can isolate a gateway system function.

Description

technical field [0001] The invention belongs to the technical field of network equipment, and in particular relates to an FPGA and DSP-based national secret encryption security video data exchange card and an exchange method. Background technique [0002] In recent years, especially in private networks (such as public security information networks, etc.), in order to realize interconnection and interoperability of related businesses, secure exchange and transmission of various data such as video streams and video signaling between internal networks and other external networks, and strengthen information Resource sharing and comprehensive application capabilities, while ensuring the high security of data exchange and its own network, widely used data exchange servers with physically isolated gatekeepers. Use network isolation technology to deal with various network hazards. TCP / IP communication is used between the gatekeeper and the exchange server, and a series of security ...

AI Technical Summary

Problems solved by technology

1. The problem of transmission efficiency: When the network transmission traffic is high, especially when the traffic reaches several gigabytes or even 10 megabytes, the amount of data to be processed per unit time is more, and the high CPU resource consumption of the TCP / IP protocol stack will cause The server system has a very high CPU load, which greatly reduces the processing speed of the server and the efficiency of data exchange and transmission.

At present, in order to improve the efficiency of data exchange, the common method is to improve the performance of system hardware and adopt higher-performance servers and network equipment, but the cost is to modify the system to a certain extent. For some large-scale systems, the cost is very high. huge

2. Data security issues: At present, there are still some security risks in the main data exchange methods in our country: A. Use middleware for data exchange, because the ports opened on the gatekeeper and the middleware software message format are well known in the industry open, public, and very vulnerable

However, the traditional video data exchange system developed in the early stage does not meet the requirements of secure video data exchange and transmission.

3. Poor scalability and controllability: In the video data exchange system of the prior art, proprietary communication protocols and interfaces are generally used between the exchange server and the gatekeeper, the exchange server and the database server

Therefore, different brands of equipment and software cannot achieve fast docking. At the same time, due to the large differences in protocols and interfaces, it takes a lot of time for compatibility modification and debugging.

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