A Decision Framework for Blockchain Platforms for IoT and Edge Computing Topics: Communication; Encryption (all aspects); Future of IoT and Big Data; Intelligent Infrastructure and Guidance Systems; Intelligent Systems for IoT and Services Computing ; Internet of Things; IoT Services and Applications; Machine to Machine Communications ; Middleware and Agents for IoT and Big Data, Grid and Cluster Computing; Networking and Communication Protocols ; Next Generation Networks; Security, Privacy and Risk; Security, Privacy and Trust ; Sensor Networks, Remote Diagnosis and Development; Sensor, Wireless Technologies, APIs; Sensors; Smart City and Transportation; Smart City Examples and Case Studies; Software Architecture and Middleware ; Technological focus for Smart Environments; Trust and privacy In Proceedings of the 3rd International Conference on Internet of Things, Big Data and Security IoTBDS - Volume 1, 105-113, 2018 , Funchal, Madeira, Portugal