Cryptology ePrint Archive: Report 2019/882

Modifying The Tropical Version of Stickelís Key Exchange Protocol

Any Muanalifah and Serge˘ı Sergeev

Abstract: A tropical version of Stickelís key exchange protocol was suggested by Grigoriev and Sphilrain [2] and successfully attacked by Kotov and Ushakov [5]. We suggest some modifications of this scheme that use commuting matrices in tropical algebra and discuss some possibilities of attacks on these new modifications. We suggest some simple heuristic attacks on one of our new protocols, and then we generalize the Kotov and Ushakov attack on Stickelís protocol and discuss the application of that generalised attack to all our new protocols

Category / Keywords: public-key cryptography / Stickelís protocol ,Tropical Algebra ,Cryptography ,Commuting matrices

Date: received 31 Jul 2019, last revised 7 Oct 2019

Contact author: any muanalifah at walisongo ac id,s sergeev@bham ac uk

Available format(s): PDF | BibTeX Citation

Version: 20191007:123148 (All versions of this report)

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