Electronic Voting by Means of Digital Terrestrial Television: The Infrastructure, Security Issues and a Real Test-bed

In this paper a Digital Terrestrial Television (DTI) based voting system is presented. This electronic voting technology allows disabled users to cast their vote from home by using common well-known devices. The needed equipment am a TV set, a Set Top Box (STB) with its remote control and a telephone line. The complete infrastructure consists of an AIHP (Multimedia Home Platform) application thai acts as a client application, a server application that acts as a network/counting server for e-voting, and a security protocol based on asymmetric key encryption to ensure authentication and secrecy of the vote. The MHP application is broadcasted by a certified (e.g., national) TV channel that grants its originality. The user needs a smart card issued by a national authority and to sign the encrypted ballot. The voter can browse the application by acting on the STB remote control. The server application is in charge to verify user identity to gather and store user's encrypted ballots and finally to count votes. The communication between the client application and the server takes place by means of a secured channel (using HTTPS) while the voting operations are secured with the help of asymmetric keys encryption.