Security issues become more and more important
during the development of mobile devices. In this paper we
propose first a brief overview of hardware and software attacks
related to embedded systems and second a comprehensive study
of existing solutions to protect programs and data exchanges
within these systems. Security primitives dedicated to the implementation
of a secure architecture are also presented. Based on
this analysis of existing solutions and requirements an original
approach is proposed in order to mitigate the cost of security.
Constraints related to embedded systems are strong it is thus
mandatory to define new solutions, our proposition is outlined
through various security primitives (ciphering and hashing) with
features adapted to embedded systems.
