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INDOCRYPT
2010
Springer

One Byte per Clock: A Novel RC4 Hardware

8 years 1 months ago
One Byte per Clock: A Novel RC4 Hardware
RC4, the widely used stream cipher, is well known for its simplicity and ease of implementation in software. In case of a special purpose hardware designed for RC4, the best known implementation till date is 1 byte per 3 clock cycles. In this paper, we take a fresh look at the hardware implementation of RC4 and propose a novel architecture which generates 1 keystream byte per clock cycle. Our strategy considers generation of two consecutive keystream bytes by unwrapping the RC4 cycles. The same architecture is customized to perform the key scheduling algorithm at a rate of 1 round per clock.
Sourav Sengupta, Koushik Sinha, Subhamoy Maitra, B
Added 13 Feb 2011
Updated 13 Feb 2011
Type Journal
Year 2010
Where INDOCRYPT
Authors Sourav Sengupta, Koushik Sinha, Subhamoy Maitra, Bhabani P. Sinha
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