Hardware Security

Chapter 14

Hardware Obfuscation

Abstract

This chapter describes hardware obfuscation as a design solution to protect hardware IP against various attacks in its lifecycle, including reverse engineering and piracy. Various approaches for obfuscation, their relative effectiveness, and weaknesses are discussed.

Keywords

Hardware Obfuscation; Bitstream Obfuscation; Reverse Engineering

Chapter Outline

• 14.1  Introduction
  • 14.1.1  Preliminaries
    • 14.1.1.1  Definition
    • 14.1.1.2  Software Versus Hardware Obfuscation
  • 14.1.2  Why Not Encrypt Hardware IPs?
• 14.2  Overview of Obfuscation Techniques
  • 14.2.1  RTL Obfuscation
  • 14.2.2  Gate Level Obfuscation
  • 14.2.3  Layout Level Obfuscation
  • 14.2.4  Instruction Set Obfuscation
  • 14.2.5  PCB Obfuscation
• 14.3  Hardware ...