Root of trust for trusted node based-on ARM11 platform

As wireless sensor network (WSN) becomes more popular in environmental, business and military applications, security issues emerge with critical concerns because it is exposed to various types of physical attacks. The key factor for preventing from physical attacks is the security they provide at the platform level. A promising approach for providing a high-level security is by a trusted boot process; constructing a chain of trust just after the platform is booted-up. This paper presents a root of trust (ROT) at the 1^st level boot-up platform to construct a chain of trust at the hardware layer using an embedded secured ROM inside the processor. This platform uses one of the most popular verification algorithms as part of the 1^st level boot process. It was found that the proposed system can support any application that needs a high speed processing power because it uses a 32-bit processor.