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Paper 2015/120

Reconfigurable LUT: A Double Edged Sword for Security-Critical Applications

Debapriya Basu Roy and Shivam Bhasin and Sylvain Guilley and Jean-Luc Danger and Debdeep Mukhopadhyay and Xuan Thuy Ngo and Zakaria Najm

Abstract

Modern FPGAs offer various new features for enhanced reconfigurability and better performance. One of such feature is a dynamically Reconfigurable LUT (RLUT) whose content can be updated internally, even during run-time. There are many scenarios like pattern matching where this feature has been shown to enhance the performance of the system. In this paper, we study RLUT in the context of secure applications. We describe the basic functionality of RLUT and discuss its potential applications for security. Next, we design several case-studies to exploit RLUT feature in security critical scenarios. The exploitation are studied from a perspective of a designer (e.g. designing countermeasures) as well as a hacker (inserting hardware Trojans).

Metadata
Available format(s)
PDF
Publication info
Published elsewhere. SPACE-2015
Keywords
Reconfigurable LUT (RLUT)FPGACFGLUT5Hardware TrojansSide-Channel CountermeasuresSecret Ciphers.
Contact author(s)
dbroy24 @ gmail com
History
2015-12-22: revised
2015-02-26: received
See all versions
Short URL
https://ia.cr/2015/120
License
Creative Commons Attribution
CC BY
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