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GALS-Based LPSP: Implementation of a Novel Architecture for Low Power High Performance Security Processors

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3 Author(s)
Hala A. Farouk ; Comput. Eng., Arab Acad. for Sci. & Technol., Alexandria, Egypt ; Mahmoud T. El-Hadidi ; Ahmed Abou El Farag

Current architectures for processors that run security applications are optimized for either high-performance or low energy consumption. We propose an implementation for an architecture that not only provides high performance and low energy consumption but also mitigates security attacks on the cryptographic algorithms which are running on it. The security is taken as a new dimension in the design process of this new processor architecture, the Globally-Asynchronous Locally-Synchronous-based Low Power Security Processor (GALS-based LPSP). GALS-based LPSP inherits the scheduling freedom and high performance from the dataflow architectures and the low energy consumption and flexibility from the GALS systems. In this paper a prototype of the GALS-based LPSP is implemented as a soft core on the Virtex-5 (xc5-vlx155t) FPGA. The architectural features that allow the processor to mitigate Side-Channel attacks are explained in detail and tested on the current encryption standard, the AES. The performance analysis reveals that the GALS-based LPSP achieves two times higher throughput with one and a half times less energy consumption than the currently used embedded processors.

Published in:

Parallel and Distributed Processing Workshops and Phd Forum (IPDPSW), 2011 IEEE International Symposium on

Date of Conference:

16-20 May 2011