This book constitutes the proceedings of the 12th International Conference on Green Pervasive
and Cloud Computing GPC 2017 held in Cetara Italy in May 2017 and the following colocated
workshops: First International Workshop on Digital Knowledge Ecosystems 2017 and First
Workshop on Cloud Security Modeling Monitoring and Management CS3M 2017. The 58 full papers
included in this volume were carefully reviewed and selected from 169 initial submissions. They
deal with cryptography security and biometric techniques advances network services
algorithms and optimization mobile and pervasive computing cybersecurity parallel and
distributed computing ontologies and smart applications and healthcare support systems.
