An architecture for a secure service discovery service
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
PGP: Pretty Good Privacy
The Eigentrust algorithm for reputation management in P2P networks
WWW '03 Proceedings of the 12th international conference on World Wide Web
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ACM Transactions on Information and System Security (TISSEC)
SuperstringRep: reputation-enhanced service discovery
ACSC '05 Proceedings of the Twenty-eighth Australasian conference on Computer Science - Volume 38
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IEEE Transactions on Mobile Computing
Toward Distributed Service Discovery in Pervasive Computing Environments
IEEE Transactions on Mobile Computing
Developing a Model for Trust Management in Pervasive Devices
PERCOMW '06 Proceedings of the 4th annual IEEE international conference on Pervasive Computing and Communications Workshops
A Private, Secure, and User-Centric Information Exposure Model for Service Discovery Protocols
IEEE Transactions on Mobile Computing
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IEEE Pervasive Computing
P5: a protocol for scalable anonymous communication
Journal of Computer Security
SybilGuard: defending against sybil attacks via social networks
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
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ECOWS '06 Proceedings of the European Conference on Web Services
A survey of trust and reputation systems for online service provision
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PDP: a lightweight discovery protocol for local-scope interactions in wireless ad hoc networks
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IEEE Transactions on Parallel and Distributed Systems
Davis social links: integrating social networks with internet routing
Proceedings of the 2007 workshop on Large scale attack defense
A Survey of Service Discovery Protocols in Multihop Mobile Ad Hoc Networks
IEEE Pervasive Computing
Taxonomy of trust: Categorizing P2P reputation systems
Computer Networks: The International Journal of Computer and Telecommunications Networking - Management in peer-to-peer systems
Reputation-based routing in hybrid ad hoc networks
MSN'07 Proceedings of the 3rd international conference on Mobile ad-hoc and sensor networks
SPROUT: P2P routing with social networks
EDBT'04 Proceedings of the 2004 international conference on Current Trends in Database Technology
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IEEE Communications Surveys & Tutorials
On trust models and trust evaluation metrics for ad hoc networks
IEEE Journal on Selected Areas in Communications
Journal of Network and Computer Applications
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The realization of ubiquitous computing requires achieving seamless service provisioning for users and devices everywhere. However, potentially uneven conditions imposed (by heterogeneous, overlapping environments) and a high degree of user autonomy pose long-term challenges for mobile application design and implementation. In this context, service discovery protocols can be used as a building block to foster peer collaboration, allowing user-provided services to be found and used. Promoting user collaboration, in turn, raises issues regarding security and privacy. Interacting peers (i.e. users) may belong to multiple domains, and authentication cannot always rely on an infrastructure provided by an administrative domain. Thus, user privacy, security, and collaboration may be regarded as conflicting goals. This paper presents a flexible protocol for service discovery in ubiquitous systems whose peer-to-peer design enables the dynamic choice among the levels of collaboration, security and privacy desired by participants. The proposed approach is based on decentralized mechanisms that harness well-known trust management principles to control the exposure of service information. The resulting protocol is called Flexible and Secure Service Discovery (FSSD). An evaluation with a simple prototype was conducted to support our claims of flexibility (e.g. allowing run-time decisions). Results demonstrate that the proposed approach can reflect well the balance among the conflicting goals of security, privacy and user collaboration.