Feasibly clonable functions

Authors:
Christian Boit;Clemens Helfmeier;Dmitry Nedospasov
Affiliations:
Berlin University of Technology, Berlin, Germany;Berlin University of Technology, Berlin, Germany;Berlin University of Technology, Berlin, Germany
Venue:
Proceedings of the 3rd international workshop on Trustworthy embedded devices
Year:
2013

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Abstract

Physically Unclonable Functions (PUF) are continuously being integrated into next generation security products. Nevertheless, their implementations and algorithms are the subject of much debate amongst the security community. One proposed use application for PUFs is replacing secure key storage. Yet the full unique PUF response of the most common type of PUFs can be recovered by using standard failure analysis equipment. SRAM PUFs used as key storage can only be considered to marginally improve security over conventional non-volatile key storage.