Visible to the public A secure and unclonable embedded system using instruction-level PUF authentication

TitleA secure and unclonable embedded system using instruction-level PUF authentication
Publication TypeConference Paper
Year of Publication2014
AuthorsZheng, J.X., Dongfang Li, Potkonjak, M.
Conference NameField Programmable Logic and Applications (FPL), 2014 24th International Conference on
Date PublishedSept
KeywordsBenchmark testing, delays, Embedded systems, field programmable gate arrays, instruction-level PUF authentication, microprocessor chips, processor execution environment, secure embedded system, security, unclonable embedded system, Xilinx Spartan6-based FPGA board

In this paper we present a secure and unclonable embedded system design that can target either an FPGA or an ASIC technology. The premise of the security is that the executed machine code and the executing environment (the embedded processor) will authenticate each other at a per-instruction basis using Physical Unclonable Functions (PUFs) that are built into the processor. The PUFs ensure that the execution of the binary code may only proceed if the binary is compiled with the correct intrinsic knowledge of the PUFs, and that such intrinsic knowledge is virtually unique to each processor and therefore unclonable. We will explain how to implement and integrate the PUFs into the processor's execution environment such that each instruction is authenticated and de-obfuscated on-demand and how to transform an ordinary binary executable into PUF-aware, obfuscated binaries. We will also present a prototype system on a Xilinx Spartan6-based FPGA board.

Citation Key6927428