Low Cost and Precise Jitter Measurement Method for TRNG Entropy Assessment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21240%2F23%3A00383019" target="_blank" >RIV/68407700:21240/23:00383019 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.46586/tches.v2024.i1.207-228" target="_blank" >https://doi.org/10.46586/tches.v2024.i1.207-228</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.46586/tches.v2024.i1.207-228" target="_blank" >10.46586/tches.v2024.i1.207-228</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Low Cost and Precise Jitter Measurement Method for TRNG Entropy Assessment

Popis výsledku v původním jazyce

Random number generators and specifically true random number generators (TRNGs) are essential in cryptography. TRNGs implemented in logic devices usually exploit the time instability of clock signals generated in freely running oscillators as source of randomness. To assess the performance and quality of oscillator-based TRNGs, accurate measurement of clock jitter originating from thermal noise is of paramount importance. We propose a novel jitter measurement method, in which the required jitter accumulation time can be reduced to around 100 reference clock periods. Reduction of the jitter accumulation time reduces the impact of the flicker noise on the measured jitter and increases the precision of the estimated contribution of thermal noise. In addition, the method can be easily embedded in logic devices. The fact that the jitter measurement can be placed in the same device as the TRNG is important since it can be used as a basis for efficient embedded statistical tests. In contrast to other methods, we propose a thorough theoretical analysis of the measurement error. This makes it possible to tune the parameters of the method to guarantee a relative error smaller than 12% even in the worst cases. 2023, Ruhr-University of Bochum. All rights reserved.

Název v anglickém jazyce

Low Cost and Precise Jitter Measurement Method for TRNG Entropy Assessment

Popis výsledku anglicky

Random number generators and specifically true random number generators (TRNGs) are essential in cryptography. TRNGs implemented in logic devices usually exploit the time instability of clock signals generated in freely running oscillators as source of randomness. To assess the performance and quality of oscillator-based TRNGs, accurate measurement of clock jitter originating from thermal noise is of paramount importance. We propose a novel jitter measurement method, in which the required jitter accumulation time can be reduced to around 100 reference clock periods. Reduction of the jitter accumulation time reduces the impact of the flicker noise on the measured jitter and increases the precision of the estimated contribution of thermal noise. In addition, the method can be easily embedded in logic devices. The fact that the jitter measurement can be placed in the same device as the TRNG is important since it can be used as a basis for efficient embedded statistical tests. In contrast to other methods, we propose a thorough theoretical analysis of the measurement error. This makes it possible to tune the parameters of the method to guarantee a relative error smaller than 12% even in the worst cases. 2023, Ruhr-University of Bochum. All rights reserved.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IACR Transactions on Cryptographic Hardware and Embedded Systems

ISSN

2569-2925

e-ISSN

2569-2925

Svazek periodika

2024

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

22

Strana od-do

207-228

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85180557007