
@conference {RilGra11A,
	title = {Circumventing a Ring Oscillator Approach to FPGA-Based Hardware Trojan Detection},
	booktitle = {Proceedings of the International Conference on Computer Design (ICCD)},
	year = {2011},
	month = {October},
	abstract = {Ring oscillators are commonly used as a locking mechanism that binds a hardware design to a specific area of silicon within an integrated circuit (IC). This locking mechanism can be used to detect malicious modifications to the hardware design, also known as a hardware Trojan, in situations where such modifications result in a change to the physical placement of the design on the IC. However, careful consideration is needed when designing ring oscillators for such a scenario to guarantee the integrity of the locking mechanism. This paper presents a case study in which flaws discovered in a ring oscillator-based Trojan detection scheme allowed for the circumvention of the security mechanism and the implementation of a large and diverse set of hardware Trojans, limited only by hardware resources.},
	author = {Justin Rilling and David Graziano and Jamin Hitchcock and Timothy Meyer and Xinying Wang and Phillip Jones and Joseph Zambreno}
}
