Towards secure elements for the Internet of Things: The eLock use case: Work in progress — Invited paper

Security and trust are major prerequisites for the deployment of Internet of Things (IoT) infrastructures. In this paper we present secure elements providing TLS and DTLS stacks, and running the CoAP protocol dedicated to IoT systems. These secure elements are used in an electronic lock context, in which the lock is a CoAP server and the key a CoAP client. We define two main security domains one for key interaction with the lock, and the other for key generation. These two domains are associated to applications running in SIM cards managed by mobile applications. Key generators are hosted in secure elements plugged in key servers, built over the RACS protocol. We introduce an innovative double TLS concept that avoids application tampering by cloud provider. Finally we discuss scalability issues of this approach.