PUFatt: Embedded platform attestation based on novel processor-based PUFs

  • Authors: Joonho Kong, Farinaz Koushanfar, Praveen K Pendyala, Ahmad-Reza Sadeghi, Christian Wachsmann
  • Conference: 2014 51st ACM/EDAC/IEEE Design Automation Conference (DAC)
  • Publisher: IEEE
  • Published date: June, 2014
  • Citations: Cited by 63+
  • PDF Version

Abstract

Software-based attestation schemes aim at proving the integrity of code and data residing on a platform to a verifying party. However, they do not bind the hardware characteristics to the attestation protocol and are vulnerable to impersonation attacks. We present PUFatt, a new automatable method for linking software-based attestation to intrinsic device characteristics by means of a novel processor-based Physically Unclonable Function, which enables secure timed (and even) remote attestation particularly suitable for embedded and low-cost devices. Our proof-of-concept implementation on FPGA demonstrates the effectiveness, applicability and practicability of the approach.

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