RECEIPT-FREE ELECTRONIC BETTING SYSTEM

Japanese Patent JP3730700

B2

PURPOSE: To provide a safe receipt-free betting system by using algorithm based upon number theory.
CONSTITUTION: A bet generating center 10 generates a betting choice to each better or each bet selecting means 12. Ciphering or shuffling is applied to a bet and the result of ciphering and shuffling is sent to the bet selecting means 12 together with information on the method of applying shuffling to the bet without being intercepted on the way. The information is preferably transmitted through a safe tapping-disabled channel 16(i). Bet generation and shuffling verification using chameleon commitment and mutual communication proof can also be applied to this system. Thereby the betting system can be attained by using the tapping-disabled channel and a current personal computer provided with an access means to an electronic bulletin board.

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JP2004280038	ELECTRONIC EQUIPMENT AND METHOD FOR TRANSMITTING INFORMATION FOR IT
WO/2001/077848	SYSTEM FOR CONDUCTING BUSINESS OVER THE INTERNET

Kazue Sako
Joseph John Killian

JP2777596A

January 05, 2006

February 15, 1996

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NEC

G06F15/00; G06Q20/38; G07C13/00; G09C1/00; H04L9/32; (IPC1-7): G06F19/00; G07C13/00; G09C1/00; G09C1/00; H04L9/32

上加世田宏他:電子選挙に関する二,三の考察、信学技報、1993.12
Receipt-Free Secret-Ballot Elections:Josh Benaloh et.al.,STOC94-5/94,1994 ACM,p.544-553
特開平6-19943号公報
特開平6-176228号公報
特開平6-223250号公報
A Discrete Logarithm Implementation of Perfect Zero-Knowledge Blobs:Joan F.Boyar et.al.:1990 International Association for Cryptologic Research,p.63-76
Untraceable Electronic Mail,Return Addresses,and Digital Pseudonyms:David L. Chaum,Communications of the ACM,Feb.1981,vol.24,No.2,p.84-88

Masahiko Desk
Masashi Kudo
Yasuhisa Tanizawa

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