Paper 2017/728

Evidence-Based Trust Mechanism Using Clustering Algorithms for Distributed Storage Systems

Giulia Traverso, Carlos Garcia Cordero, Mehrdad Nojoumian, Reza Azarderakhsh, Denise Demirel, Sheikh Mahbub Habib, and Johannes Buchmann


In distributed storage systems, documents are shared among multiple Cloud providers and stored within their respective storage servers. In social secret sharing-based distributed storage systems, shares of the documents are allocated according to the trustworthiness of the storage servers. This paper proposes a trust mechanism using machine learning techniques to compute evidence-based trust values. Our mechanism mitigates the effect of colluding storage servers. More precisely, it becomes possible to detect unreliable evidence and establish countermeasures in order to discourage the collusion of storage servers. Furthermore, this trust mechanism is applied to the social secret sharing protocol AS$^3$, showing that this new evidence-based trust mechanism enhances the protection of the stored documents.

Available format(s)
Publication info
Published elsewhere. MAJOR revision.15th International Conference on Privacy, Security and Trust (PST2017)
trust managementsocial secret sharingapplied cryptographydistributed storage systemscloud computingclustering algorithms
Contact author(s)
gtraverso @ cdc informatik tu-darmstadt de
2017-07-31: received
Short URL
Creative Commons Attribution


      author = {Giulia Traverso and Carlos Garcia Cordero and Mehrdad Nojoumian and Reza Azarderakhsh and Denise Demirel and Sheikh Mahbub Habib and Johannes Buchmann},
      title = {Evidence-Based Trust Mechanism Using Clustering Algorithms for Distributed Storage Systems},
      howpublished = {Cryptology ePrint Archive, Paper 2017/728},
      year = {2017},
      note = {\url{}},
      url = {}
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