Cryptology ePrint Archive: Report 2012/478

Cryptanalysis on a novel unconditionally secure oblivious polynomial evaluation protocol

Wang Qinglong, Xu Li

Abstract: Vanishree proposed a novel unconditionally oblivious polynomial evaluation protocol and they claimed that can fulfill both sender and receiverís security. Here, this protocol is cryptanalyzed. We find that it has a fatal fault which cannot implement the receiverís security at all and show the detail analyzing process.

Category / Keywords: cryptographic protocols / oblivious polynomial evaluation, oblivious transfer, multi-party computation

Date: received 20 Aug 2012

Contact author: qlwang at chd edu cn

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Version: 20120821:225800 (All versions of this report)

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