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Espresso: A stream cipher for 5G wireless communication systems
KTH, School of Information and Communication Technology (ICT), Electronics and Embedded Systems.ORCID iD: 0000-0001-7382-9408
Lund University, Sweden.
2017 (English)In: Cryptography and Communications, ISSN 1936-2447, E-ISSN 1936-2455, Vol. 9, no 2, 273-289 p.Article in journal (Refereed) Published
Abstract [en]

The demand for more efficient ciphers is a likely to sharpen with new generation of products and applications. Previous cipher designs typically focused on optimizing only one of the two parameters - hardware size or speed, for a given security level. In this paper, we present a methodology for designing a class of stream ciphers which takes into account both parameters simultaneously. We combine the advantage of the Galois configuration of NLFSRs, short propagation delay, with the advantage of the Fibonacci configuration of NLFSRs, which can be analyzed formally. According to our analysis, the presented stream cipher Espresso is the fastest among the ciphers below 1500 GE, including Grain-128 and Trivium.

Place, publisher, year, edition, pages
Springer, 2017. Vol. 9, no 2, 273-289 p.
Keyword [en]
stream cipher, nonlinear function, encryption, feedback shift register
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-183976DOI: 10.1007/s12095-015-0173-2ISI: 000396435400006Scopus ID: 2-s2.0-85010001764OAI: oai:DiVA.org:kth-183976DiVA: diva2:913280
Funder
Swedish eā€Science Research Center, SM12-0005
Note

QC 20170221

Available from: 2016-03-21 Created: 2016-03-21 Last updated: 2017-04-06Bibliographically approved

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