Naslov
Credibility and authenticity of digitally signed videos in traffic

Autori
Grgurević, Ivan ; Stančić, Adam ; Škorput, Pero

Izvornik
Promet - Traffic & transportation (0353-5320) 20 (2008), 6; 405-414

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, pregledni rad, znanstveni

Ključne riječi
digital signature ; video recording ; intelligent transport systems

Sažetak
The paper presents the possibilities of insuring the credibility and authenticity of the surveillance camera video by digital signing, using the public key infrastructure as part of interoperable traffic and information system in the future intelligent transport systems. The surveillance camera video is a sequence of individual frames and a unique digital print, i.e. hash value is calculated for each of these. By encryption of the hash values of the frames using private encryption key of the surveillance centre, digital signatures are created and they are stored in the database. The surveillance centre can issue a copy of the video to all the interested subjects for scientific and research work and investigation. Regardless of the scope, each subsequent manipulation of the video copy contents will certainly change the hash value of all the frames. The procedure of determining the authenticity and credibility of videos is reduced to the comparison of the hash values of the frames stored in the database of the surveillance centre with the values obtained from the interested subjects such as the traffic experts and investigators, surveillance-security services etc.

Izvorni jezik
Engleski

Znanstvena područja
Tehnologija prometa i transport

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