COSIC seminar "A Multimode Ring Oscillator based TRNG for FPGAs" (Milos Grujic, KU Leuven) скачать в хорошем качестве

COSIC seminar "A Multimode Ring Oscillator based TRNG for FPGAs" (Milos Grujic, KU Leuven)

COSIC seminar – A Multimode Ring Oscillator based TRNG for FPGAs – Milos Grujic True random number generators (TRNGs) are essential cryptographic components. Due to the ever-increasing ubiquity of FPGAs in modern embedded security systems, there exists a growing demand for fully digital TRNGs suitable for FPGAs. As one possible solution to this problem, the TRNGs based on time-to-digital conversion are proposed. TDC-based TRNGs rely on the concept of sampling the unstable signal of the ring oscillator with very high precision by using fast delay chains (DC). In this work, we present a novel TRNG design with a conservative security evaluation. Unlike previous DC-based TRNGs, this design extracts significant entropy from the jittery pulse of the multimode ring oscillator. Additionally, we improved the design of the digitization part to further boost the amount of extractable entropy. Our design is accompanied by a stochastic model that considers disparities and non-uniformities in the structure of FPGAs. Further, we discuss a post-processing procedure to increase the min-entropy rate to a level acceptable by both the European and the US standards.