Cryptology ePrint Archive: Report 2017/579

Birthday Attack on Dual EWCDM

Mridul Nandi

Abstract: In CRYPTO 2017, Mennink and Neves showed almost n-bit security for a dual version of EWCDM. In this paper we describe a birthday attack on this construction which violates their claim.

Category / Keywords: secret-key cryptography /

Date: received 13 Jun 2017, last revised 14 Jun 2017

Contact author: mridul nandi at gmail com

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Version: 20170620:152748 (All versions of this report)

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