Practical electronic lotteries with offline TTP

  • Authors:
  • Sherman S. M. Chow;Lucas C. K. Hui;S. M. Yiu;K. P. Chow

  • Affiliations:
  • Department of Computer Science, The University of Hong Kong, Pokfulam, Hong Kong;Department of Computer Science, The University of Hong Kong, Pokfulam, Hong Kong;Department of Computer Science, The University of Hong Kong, Pokfulam, Hong Kong;Department of Computer Science, The University of Hong Kong, Pokfulam, Hong Kong

  • Venue:
  • Computer Communications
  • Year:
  • 2006

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Abstract

A number of electronic lottery (e-lottery) schemes have been proposed; however, none of them can satisfy all the identified requirements. In particular, some of them require either a certain subset of players or a trusted third party (TTP) to remain online in order to generate the winning number(s), and some suffer from the forgery ticket attack. Based on various advanced cryptographic techniques, we propose a new e-lottery scheme that can satisfy all the identified requirements without the presence of TTP for generating the winning numbers, yet the result of this generation is publicly verifiable.