PUF authentication and key-exchange by substring matching

Description
Abstract

Mechanisms for operating a prover device and a verifier device so that the verifier device can verify the authenticity of the prover device. The prover device generates a data string by: (a) submitting a challenge to a physical unclonable function (PUF) to obtain a response string, (b) selecting a substring from the response string, (c) injecting the selected substring into the data string, and (d) injecting random bits into bit positions of the data string not assigned to the selected substring. The verifier: (e) generates an estimated response string by evaluating a computational model of the PUF based on the challenge; (f) performs a search process to identify the selected substring within the data string using the estimated response string; and (g) determines whether the prover device is authentic based on a measure of similarity between the identified substring and a corresponding substring of the estimated response string.

Description
Advisor
Degree
Type
Utility patent
Keywords
Citation

Rostami, Masoud, Majzoobi, Mehrdad, Koushanfar, Farinaz, Wallach, Daniel S. and Devadas, Srinivas, "PUF authentication and key-exchange by substring matching." Patent US9628272B2. issued 2017-04-18. Retrieved from https://hdl.handle.net/1911/94822.

Has part(s)
Forms part of
Published Version
Rights
Link to license
Citable link to this page
Collections