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Title: Optimizing SHA-1 hash function for high throughput with a partial unrolling study
Authors: Michail, Harris 
Kakarountas, Athanasios P.
Selimis, George N.
Keywords: Computer software;Energy dissipation;Document imaging systems
Issue Date: 2005
Publisher: Springer
Source: Integrated Circuit and System Design. Power and Timing Modeling, Optimization and Simulation: 15th International Workshop, PATMOS , Leuven, Belgium, September 21-23, 2005, Pages 591-600
Abstract: Hash functions are widely used in applications that call for data integrity and signature authentication at electronic transactions. A hash function is utilized in the security layer of every communication protocol. As time passes more sophisticated applications arise that address to more users-clients and thus demand for higher throughput. Furthermore, due to the tendency of the market to minimize devices' size and increase their autonomy to make them portable, power issues have also to be considered. The existing SHA-1 Hash Function implementations (SHA-1 is common in many protocols e.g. IPSec) limit throughput to a maximum of 2 Gbps. In this paper, a new implementation comes to exceed this limit improving the throughput by 53%. Furthermore,power dissipation is kept low compared to previous works, in such way that the proposed implementation can be characterized as low-power.
ISBN: 978-3-540-29013-1 (print)
ISSN: 978-3-540-32080-7 (online)
DOI: 10.1007/11556930_60
Rights: © Springer-Verlag Berlin Heidelberg 2005
Type: Book Chapter
Appears in Collections:Κεφάλαια βιβλίων/Book chapters

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