D 2020

Fooling primality tests on smartcards

SEDLÁČEK, Vladimír, Ján JANČÁR and Petr ŠVENDA

Basic information

Original name

Fooling primality tests on smartcards

Authors

SEDLÁČEK, Vladimír (203 Czech Republic, guarantor, belonging to the institution), Ján JANČÁR (703 Slovakia, belonging to the institution) and Petr ŠVENDA (203 Czech Republic, belonging to the institution)

Edition

Švýcarsko, 25th European Symposium on Research in Computer Security (ESORICS) 2020, p. 209-229, 21 pp. 2020

Publisher

Springer

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

10201 Computer sciences, information science, bioinformatics

Confidentiality degree

není předmětem státního či obchodního tajemství

Publication form

printed version "print"

References:

Impact factor

Impact factor: 0.402 in 2005

RIV identification code

RIV/00216224:14330/20:00114216

Organization unit

Faculty of Informatics

ISBN

978-3-030-59012-3

ISSN

Keywords in English

ECC; primality; pseudoprimes; smartcards

Tags

International impact, Reviewed
Změněno: 29/4/2021 12:26, RNDr. Pavel Šmerk, Ph.D.

Abstract

V originále

We analyse whether the smartcards of the JavaCard platform correctly validate primality of domain parameters. The work is inspired by Albrecht et al. (Prime and Prejudice) [1], where the authors analysed many open-source libraries and constructed pseudoprimes fooling the primality testing functions. However, in the case of smartcards, often there is no way to invoke the primality test directly, so we trigger it by replacing (EC)DSA and (EC)DH prime domain parameters by adversarial composites. Such a replacement results in vulnerability to Pohlig-Hellman [30] style attacks, leading to private key recovery. Out of nine smartcards (produced by five major manufacturers) we tested (See https://crocs.fi.muni.cz/papers/primality_esorics20 for more information), all but one have no primality test in parameter validation. As the JavaCard platform provides no public primality testing API, the problem cannot be fixed by an extra parameter check, making it difficult to mitigate in already deployed smartcards.

Links

GA20-03426S, research and development project
Name: Ověření a zlepšení bezpečnosti kryptografie eliptických křivek
Investor: Czech Science Foundation
MUNI/C/1701/2018, interní kód MU
Name: Side channel analysis of elliptic curve cryptography on smart cards (Acronym: ECSCA)
Investor: Masaryk University, Rector's Program