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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.
2015 (English)In: Cryptography and Communications - Discrete Structures, Boolean Functions and Sequences (CCDS), ISSN 1936-2447, 1-17 p.Article in journal (Refereed) Epub ahead of print
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, 2015. 1-17 p.
Keyword [en]
stream cipher, nonlinear function, encryption, feedback shift register
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-183976DOI: 10.1007/s12095-015-0173-2OAI: oai:DiVA.org:kth-183976DiVA: diva2:913280
Funder
Swedish eā€Science Research Center, SM12-0005
Note

QP 201604

Available from: 2016-03-21 Created: 2016-03-21 Last updated: 2016-04-05Bibliographically approved

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Dubrova, Elena
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