side channel attacks; countermeasures; random delays
Abstract :
[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)
Language :
English
Title :
An Efficient Method for Random Delay Generation in Embedded Software
Publication date :
2009
Event name :
Workshop on Cryptographic Hardware and Embedded Systems
