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VLSI Architecture and FPGA Implementation of a Hybrid Message-Embedded Self-Synchronizing Stream Cipher

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5 Author(s)
Tanougast, C. ; Univ. Henri Poincare - Nancy 1, Nancy ; Weber, S. ; Millerioux, G. ; Daafouz, J.
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In this paper, we propose a VLSI architecture and an FPGA implementation of a hybrid message-embedding (HME) self-synchronizing stream cipher encryption based on a switched linear congruent pseudo-random generator. This encryption, which is based on a chaotic scheme, is particularly attractive since it provides the same security as any conventional self-synchronizing stream cipher requiring only additions, subtractions, multiplications and word-switch operations. We show its feasibility and its implementation which are presented and detailed by using Altera FPGA technology for a set of parameter numbers (switching and key component number). We also show the parametrable of the HME in order to obtain the appropriate security and a the best trade off between the smallest FPGA logical area and the best throughputs rate for embedded applications.

Published in:

Electronic Design, Test and Applications, 2008. DELTA 2008. 4th IEEE International Symposium on

Date of Conference:

23-25 Jan. 2008