An Electronic Soccer Lottery System that Uses Bit Commitment

Kunio KOBAYASHI  Hikaru MORITA  Mitsuari HAKUTA  Takanori NAKANOWATARI  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E83-D    No.5    pp.980-987
Publication Date: 2000/05/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8532
Type of Manuscript: Special Section PAPER (Special Issue on Next Generation Internet Technologies and Their Applications)
Category: 
Keyword: 
soccer lottery,  security,  bit commitment,  hash function,  digital signature,  bulletin board,  

Full Text: PDF(594.4KB)>>
Buy this Article



Summary: 
This paper proposes an electronic soccer lottery protocol suitable for the Internet environment. Recently, protocols based on public-key schemes such as digital signature have been proposed for electronic voting systems or other similar systems. For a soccer lottery system in particular, it is important to reduce the computational complexity and the amount of communication data required, because we must expect that a large number of tickets will be purchased simultaneously. These problems can be solved by introducing hash functions as the core of protocol. This paper shows a practical soccer lottery system based on bit commitment and hash functions, in which the privacy of prize-winners is protected and illegal acts by the lottery promoter or lottery ticket shops can be revealed.


open access publishing via