Delegation of Security Functions in Heterogeneous Embedded Systems

Various security challenges have been arising with the advent of Internet of Things (IoT) in the past decade. One of the issues is the limited resources for enforcing security functions in heterogeneous embedded IoT systems. This paper aims to cope with this issue by resolving the delegation problems within the scope of systematic security design. Concrete techniques for the delegation of security functions are discussed. Meanwhile, partial delegation and total delegation, and restrictions on the practice of delegation are examined. It also shows that the storage and communication capacities in the system are restriction factors affecting the viability of security function delegation.