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Matt Franklin (AT&T) on "a Secure Auction Service" 1:00pm 2/13
From: David Farber <farber () central cis upenn edu>
Date: Fri, 3 Feb 1995 13:12:01 -0500
COLLOQUIUM -- COLLOQUIUM Computer Science Department University of Maryland Baltimore County The Design and Implementation of a Secure Auction Service Matthew Franklin AT&T Bell Laboratories franklin () big att com We present the design and implementation of a distributed service for performing sealed-bid auctions. This service provides an interface by which clients (bidders) can issue secret bids to the service for an advertised auction. Once the bidding period has ended, the auction service opens the bids, determines the winning bid, and provides the winning bidder with a ticket for claiming the item bid upon. Using novel cryptographic techniques, the service is constructed to provide strong protection for both the auction house and correct bidders, despite the malicious behavior of any number of bidders and even a constant fraction of the servers comprising the auction service. Specifically, it is guaranteed that (i) bids of correct bidders are not revealed until after the bidding period has ended, (ii) the auction house collects payment for the winning bid, (iii) losing bidders forfeit no money, and (iv) only the winning bidder can collect the item bid upon. We also discuss techniques to enable anonymous bidding. Joint work with Mike Reiter (AT&T Bell Labs) 1:00pm Monday, February 13th, 1995 Computer Science Department 210 Engineering and Computer Science University of Maryland Baltimore County Baltimore MD 21228 Host: Alan Sherman (sherman () cs umbc edu) There will be light refreshments.
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- Matt Franklin (AT&T) on "a Secure Auction Service" 1:00pm 2/13 David Farber (Feb 03)