A communication encryption method between vehicle antenna and set-top box

Abstract

The invention provides a vehicle-mounted antenna and a set top box communication encryption method, belongs to the communication encryption technology field and solves a problem that communication between a vehicle-mounted set top box and the vehicle-mounted antenna can be easily copied and monitored. The method comprises steps that A, a same set of plain text segments is commonly taken by the antenna and the set top box as a fixed code on the basis of mutual agreement; B, a random code containing a self ID number is sent and read by the set top box to the vehicle-mounted antenna, the random code and the fixed code are received by the vehicle-mounted antenna and are combined to form a corresponding plain text, a query code is calculated, and the query code acquired through calculation is returned to the set top box; C, according to the random code and the fixed code, the set top box carries out calculation and combination in the same mode to form a corresponding plain text, and a check code is calculated; and D, the query code is compared with the check code, if the two are completely identical, the set top box is activated and starts normal operation, if not, waiting continues. Through high-intensity encryption behaviors of the set top box and the antenna, communication can not be copied or monitored, and the set top box can be effectively prevented from being illegally used for other purposes.

Description

technical field [0001] The invention belongs to the technical field of communication encryption, and relates to a communication encryption method between a vehicle-mounted antenna and a set-top box. Background technique [0002] Digital TV set-top box is a conversion device that converts digital TV signals into analog signals. It decodes and restores digitally compressed image and sound signals to generate analog video and sound signals. At present, digital TV set-top boxes are widely used. Set-top boxes Technology has also developed rapidly, not only has been widely used in a fixed environment, but also gradually applied in a mobile environment, mainly used in private cars, buses, taxis, subways and other means of transportation, buses, etc. To meet the needs of mobile people to receive real-time information. The existing vehicle antennas and set-top boxes do not have communication encryption or use simple encryption, which makes the set-top boxes easy to flow into the ord...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned problems in the existing technology, the present invention proposes a communication encryption method between a vehicle-mounted antenna and a set-top box, which solves the problem that the communication between a vehicle-mounted set-top box and a vehicle-mounted antenna is easily copied and monitored

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