Internet of Things (IoT) is the interconnection of a large number of devices or “things”. One challenge in the IoT is the security and privacy. Managing trust is a mechanism that allows the nodes to establish connections with a predefined level of trust between them. The aim of this study is to address the main characteristics of the trust management in IoT. Most existing studies do not meet the needs of the IoT, due to the greater heterogeneity of network nodes and different requirements of IoT. As future work, strategies of trust management will be implemented in the Contiki COOJA simulator.