Data chain encryption technology refers to the use of multiple security and security measures in space, time and frequency domain to ensure the correctness of data link transmission, system operation reliability and security, and to cope with complex and volatile environments.
The reliability of information transmission is one of the most important requirements for communication systems. The data chain adopts various technical means. For various natural and human interferences in channel transmission, data and channel encryption technologies are used to ensure information. Secure transmission.
At present, foreign UAV measurement and control data links use effective encryption methods, especially after U.S. UAVs use common data link (CDL) and shared transmission network to transmit information, based on source and Channel encryption is more important.
In order to protect the communication of the UAV system and improve the security and confidentiality of the measurement and control link, the research should be strengthened in the following aspects:
(1) Large key, high security encryption device.
(2) Large-capacity, high-real-time encryption devices.
(3) Security and confidentiality mechanism based on digital signature and identity authentication.
(4) In addition to message information encryption, voice encryption and network management encryption, it is also necessary to develop synchronous jitter encryption and base code encryption, and support encryption functions such as time hopping/jumping control/human network control/enemy identification.
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