Citation

Yeow, Kin Woon and Heng, Swee Huay and Tan, Syh Yuan (2017) On the security of two sealed-bid auction schemes. In: 2017 19th International Conference on Advanced Communication Technology (ICACT). IEEE, pp. 58-63. ISBN 978-89-968650-9-4, 978-1-5090-4892-2

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Abstract

In this paper, we cryptanalyze two sealed-bid auction schemes and show that both schemes are not secure against the known-bid attack. In the first scheme, we show that a dishonest sealer can swap the price of a sealed-bid and yet its validity remains intact; in the second scheme, we show that a dishonest auctioneer can forge a bidder's bid if the bidder was once a winning bidder. We propose a workaround for the former using a designated confirmer signature but not the latter, which is fundamentally flawed.

Item Type:	Book Section
Uncontrolled Keywords:	auctions , known-bid attack, sealer, sealed-bid
Subjects:	H Social Sciences > HF Commerce > HF5001-6182 Business > HF5469.7-5481 Markets. Fairs
Divisions:	Faculty of Information Science and Technology (FIST)
Depositing User:	Ms Rosnani Abd Wahab
Date Deposited:	26 Nov 2020 11:11
Last Modified:	26 Nov 2020 11:11
URII:	http://shdl.mmu.edu.my/id/eprint/7117

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