Enhancing TPM Security by Integrating SRAM PUFs Technology

Abstract

This paper presents an approach for enhancing the security of key hierarchy in the Trusted Platform Module (TPM) by utilizing the Static Random Access Memory (SRAM) based Physical Unclonable Functions (PUFs) technology and shows that it can make TPM's Endorsement Key extraction attacks extremely hard. We also provide a plan that implements our SRAM PUFs + TPM integration design in a normal TPM scheme and evaluate our plan. Finally, we demonstrate that our implementation is lightweight due to its minimum change to the existing TPM scheme and also relatively low-cost comparing to those traditional tamper resistance circuitry.