@inproceedings{79e0ce28039a43b39a77251499294673,
title = "Reliability and Security for Safety-Critical Service Compositions",
abstract = "Service composition represents the combination of individual distributed services, which are operated by different organizations. A composite service may include security or safety-critical services, which could have a serious impact on individuals and thus, require correctness of generated outputs as a crucial property. For this reason, service composition systems must avoid a manipulation of critical services and have to guarantee high reliability of computed outputs as well as availability. Secure multiparty computation and verifiable secret sharing enables a privacy-preserving computation of service outputs jointly generated by several parties, which makes it possible to prevent a single point of failure for critical services and guarantees correctness of a generated output. In this work, we introduce a concept for privacy-preserving and reliable service compositions through the application of secure multiparty computation in combination with threshold signatures. Threshold signatures make it possible to define a maximum number of allowed unavailable actors, which do not participate in the mulitparty computation protocol. This mechanism enables a flexible definition of security or safety requirements for critical services. The feasibility of the proposed solution is demonstrated by an implemented proof-of-concept for a composite medical alert service.",
keywords = "Reliability, Availability, service composition, Privacy, Safety",
author = "Kevin Theuermann",
year = "2020",
month = dec,
day = "6",
doi = "https://doi.org/10.1007/978-3-030-65610-2_3",
language = "English",
isbn = "978-3-030-65609-6",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer, Cham",
pages = "45--65",
editor = "Salil Kanhere and Patil, {Vishwas T} and Shamik Sural and Gaur, {Manoj S}",
booktitle = "Information Systems Security - 16th International Conference, ICISS 2020, Proceedings",
note = "16th International Conference on Information Systems Security : ICISS 2020, ICISS 2020 ; Conference date: 16-12-2020 Through 19-12-2020",
}