This book constitutes the refereed proceedings of the 9th IFIP WG 11.11 International Conference on Trust Management, IFIPTM 2015, held in Hamburg, Germany, in May 2015. The 10 revised full papers and 5 short papers presented were carefully reviewed and selected from 28 submissions. In addition, the book contains one invited paper and 5 papers from a special session on trusted cloud ecosystems. The papers cover a wide range of topics including trust and reputation and models thereof, the relationship between trust and security, socio-technical aspects of trust, reputation and privacy, trust in the cloud and behavioural models of trust.

This book describes the design and implementation of Cloud Armor, a novel approach for credibility-based trust management and automatic discovery of cloud services in distributed and highly dynamic environments. This book also helps cloud users to understand the difficulties of establishing trust in cloud computing and the best criteria for selecting a service cloud. The techniques have been validated by a prototype system implementation and experimental studies using a collection of real world trust feedbacks on cloud services. The authors present the design and implementation of a novel protocol that preserves the consumers’ privacy, an adaptive and robust credibility model, a scalable availability model that relies on a decentralized architecture, and a cloud service crawler engine for automatic cloud services discovery. This book also analyzes results from a performance study on a number of open research issues for trust management in cloud environments including distribution of providers, geographic location and languages. These open research issues illustrate both an overview of the current state of cloud computing and potential future directions for the field. Trust Management in Cloud Services contains both theoretical and applied computing research, making it an ideal reference or secondary text book to both academic and industry professionals interested in cloud services. Advanced-level students in computer science and electrical engineering will also find the content valuable.

This book constitutes the refereed proceedings of the Second International Conference on Trust Management, iTrust 2004, held in Oxford, UK, in March/April 2004. The 21 revised full papers and 6 revised short papers presented together with 3 invited contributions were carefully reviewed and selected from 48 submissions. Besides technical topics in distributed and open systems, issues from law, social sciences, business, and philosophy are addressed in order to develop a deeper and more fundamental understanding of the issues and challenges in the area of trust management in dynamic open systems.

iTrust is an Information Society Technologies (IST) working group, which started on 1st of August, 2002. The working group is being funded as a concerted action/ thematic network by the Future and Emerging Technologies (FET) unit of the IST program. The aim of iTrust is to provide a forum for cross-disciplinary investigation of the application of trust as a means of establishing security and con?dence in the global computing infrastructure, recognizing trust as a crucial enabler for meaningful and mutually bene?cial interactions. The proposed forum is intended to bring together researchers with a keen interest in complementary aspects of trust, from technology-oriented disciplines and the ?elds of law, social sciences, and philosophy. Hence providing the c- sortium participants (and the research communities associated with them) with the common background necessary for advancing toward an in-depth underst- ding of the fundamental issues and challenges in the area of trust management in open systems. Broadly the initiative aims to: – facilitate the cross-disciplinary investigation of fundamental issues underp- ning computational trust models by bringing together expertise from te- nology oriented sciences, law, philosophy, and social sciences – facilitate the emergence of widely acceptable trust management processes for dynamic open systems and applications – facilitate the development of new paradigms in the area of dynamic open systems which e?ectively utilize computational trust models – help the incorporation of trust management elements in existing standards.

This volume contains the proceedings of the IFIPTM 2007, the Joint iTrust and PST Conferences on Privacy, Trust Management and Security, held in Moncton, New Brunswick, Canada, in 2007. The annual iTrust international conference looks at trust from multidisciplinary perspectives: economic, legal, psychology, philosophy, sociology as well as information technology. This volume, therefore, presents the most up-to-date research on privacy, security, and trust management.

This book constitutes the thoroughly refereed post-conference proceedings of the 8th International Workshop on Security and Trust Management, STM 2012, held in Pisa, Italy, in September 2012 - in conjunction with the 17th European Symposium Research in Computer Security (ESORICS 2012). The 20 revised full papers were carefully reviewed and selected from 57 submissions. The papers are organized into topical sections on policy enforcement and monitoring; access control; trust, reputation, and privacy; distributed systems and physical security; authentication and security policies.

This book constitutes the refereed proceedings of the 9th International Workshop on Security and Trust Management, STM 2013, held in Egham, UK, in September 2013 - in conjunction with the 18th European Symposium Research in Computer Security (ESORICS 2013). The 15 revised full papers including two invited talks were carefully reviewed and selected from 47 submissions. The papers are organized into topical sections on policy enforcement and monitoring; access control; trust, reputation, and privacy; distributed systems and physical security; authentication and security policies.

This volume contains the proceedings of the IFIPTM 2008, the Joint iTrust and PST Conferences on Privacy, Trust Management and Security, held in Trondheim, Norway from June 18 to June 20, 2008. IFIPTM 2008 provides a truly global platform for the reporting of research, development, policy and practice in the interdependent areas of Privacy, Security, and Trust. Following the traditions inherited from the highly successful iTrust and PST conference series, IFIPTM 2008 focuses on trust, privacy and security from multidisciplinary perspectives. The conference is an arena for discussion about re levant problems from both research and practice in the areas of academia, busi ness, and government. IFIPTM 2008 is an open IFIP conference, which only accepts contributed pa pers, so all papers in these proceedings have passed strict peer review. The pro gram of the conference features both theoretical research papers and reports of real world case studies. IFIPTM 2008 received 62 submissions. The program commit tee selected 22 papers for presentation and inclusion in the proceedings. In addi tion, the program and the proceedings include 3 demo descriptions. The highlights of IFIPTM 2008 include invited talks and tutorials by industri al and academic experts in the fields of trust management, privacy and security, including Jon Bing and Michael Steiner.

This book constitutes the refereed proceedings of the Third International Conference on Trust Management, iTrust 2005, held in Paris, France in May 2005. The 21 revised full papers and 4 revised short papers presented together with 2 keynote papers and 7 trust management tool and systems demonstration reports were carefully reviewed and selected from 71 papers submitted. Besides technical issues in distributed computing and open systems, topics from law, social sciences, business, and psychology are addressed in order to develop a deeper and more comprehensive understanding of current aspects and challenges in the area of trust management in dynamic open systems.