Paper 2007/380
X-FCSR: a new software oriented stream cipher based upon FCSRs
Francois Arnault, Thierry P. Berger, Cédric Lauradoux, and Marine Minier
Abstract
Feedback with Carry Shift Registers (FCSRs) are a promising alternative to LFSRs in the design of stream cipher. The previous constructions based on FCSRs were dedicated to hardware applications. In this paper, we will describe X-FCSR a family of software oriented stream cipher using FCSRs. The core of the system is composed of two 256-bits FCSRs. We propose two versions: X-FCSR-128 and X-FCSR-256 which output respectively 128 and 256 bits at each iteration. We study the resistance of our design against several cryptanalyses. In this way, we achieve a high throughput and secure stream ciphers suitable for software applications (6.3 cycles/byte).
Metadata
- Available format(s)
-
PDF
PS
- Category
- Secret-key cryptography
- Publication info
- Published elsewhere. this paper was accepted as a short paper at Indocrypt 2007
- Keywords
- stream cipherFCSRssoftware designcryptanalysis
- Contact author(s)
- marine minier @ insa-lyon fr
- History
- 2007-09-27: received
- Short URL
- https://ia.cr/2007/380
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2007/380,
author = {Francois Arnault and Thierry P. Berger and Cédric Lauradoux and Marine Minier},
title = {X-{FCSR}: a new software oriented stream cipher based upon {FCSRs}},
howpublished = {Cryptology {ePrint} Archive, Paper 2007/380},
year = {2007},
url = {https://eprint.iacr.org/2007/380}
}
