Reliable video system using digital signature technology

Abstract

The invention discloses a reliable video system using digital signature technology, comprising a video surveillance terminal and a surveillance center; wherein, the video surveillance terminal comprises a video signal collector which is connected with a reliable digital video encoder; the reliable digital video encoder is connected with front-end transmission equipment; the surveillance center comprises central transmission equipment connected with the digital video encoder which is connected with a monitor; the front-end transmission equipment is connected with a front-end memory; the central transmission equipment is connected with a central memory, a control terminal, a certificate management server and a reliability verification server; the reliable digital video encoder comprises an analog video input interface, a digital video coding module, a reliable computing module and a network interface; the reliable computing module is connected with a special security chip. The system can greatly increase the difficulty and cost of secretly tampering with data, thus achieving the effects of effectively preventing tampering and maintaining reliability of video data.

Description

technical field [0001] The invention relates to a video monitoring system, in particular to a trusted video system using digital signature technology. It belongs to the technical field of video surveillance. Background technique [0002] With the rapid development of science and technology, video surveillance technology has been widely used in security monitoring and protection, detection, image data acquisition and other technical fields, and is playing an increasingly important role. A digital video surveillance system generally consists of image 3 Shown: It consists of video signal collector, digital video encoder, front-end memory, monitoring center memory, front-end transmission equipment, control terminal, digital video decoder, display and other parts. Among them, the composition of the digital video encoder is as follows Figure 4 As shown, it consists of an analog video input interface, a digital video encoding module, and a network interface. The analog video in...

AI Technical Summary

Problems solved by technology

However, the video image data recorded by such a system has obvious defects when it is used as evidence, because the video data encoded by a digital video encoder is "naked" data without any protection. As long as people want to, they can easily modify it at a very low cost, and the modified data is difficult to prove or falsify, which greatly reduces the legal effect of these video data

Due to the above defects of ordinary video surveillance systems, a large number of video image resources recorded and stored by these systems can only be used as clues or evidence to assist in solving the case, but cannot become real independent evidence, which undoubtedly greatly affects the role of video surveillance systems. play, and caused a serious waste of video data resources

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