Weaknesses in ENT Battery Design



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Almaraz Luengo, Elena and Alaña Olivares, Bittor and García Villalba, Luis Javier and Hernández Castro, Julio (2022) Weaknesses in ENT Battery Design. Applied Sciences, 12 (9). p. 4230. ISSN 2076-3417

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Official URL: https://doi.org/10.3390/app12094230


Randomness testing is a key tool to analyse the quality of true (physical) random and pseudo-random number generators. There is a wide variety of tests that are designed for this purpose, i.e., to analyse the goodness of the sequences used. These tests are grouped in different sets called suites or batteries. The batteries must be designed in such a way that the tests that form them are independent, that they have a wide coverage, and that they are computationally efficient. One such battery is the well-known ENT battery, which provides four measures and the value of a statistic (corresponding to the chi-square goodness-of-fit test). In this paper, we will show that this battery presents some vulnerabilities and, therefore, must be redefined to solve the detected problems.

Item Type:Article
Uncontrolled Keywords:cryptography; hypothesis testing; ENT; generators
Subjects:Sciences > Computer science
ID Code:74848
Deposited On:30 Sep 2022 14:33
Last Modified:03 Oct 2022 06:56

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