side channel attacks; countermeasures; random delays
Résumé :
[en] Random delays are a countermeasure against a range of side channel and fault attacks that is often implemented in embedded software. We propose a new method for generation of random delays and a criterion for measuring the efficiency of a random delay countermeasure. We implement this new method along with the existing ones on an 8-bit platform and mount practical side-channel attacks against the implementations. We show that the new method is significantly more secure in practice than the previously published solutions and also more lightweight.
KIZHVATOV, Ilya ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC)
Langue du document :
Anglais
Titre :
An Efficient Method for Random Delay Generation in Embedded Software
Date de publication/diffusion :
2009
Nom de la manifestation :
Workshop on Cryptographic Hardware and Embedded Systems
