Credibility-based trust management for services in cloud environments

Talal H. Noor*, Quan Z. Sheng

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

31 Citations (Scopus)


Trust management is one of the most challenging issues in the emerging cloud computing. Although many approaches have been proposed recently for trust management in cloud environments, not much attention has been given to determining the credibility of trust feedbacks. Moreover, the dynamic nature of cloud environments makes guaranteeing the availability of trust management services a difficult problem due to the unpredictable number of cloud consumers. In this paper, we propose a framework to improve ways on trust management in cloud environments. In particular, we introduce a credibility model that not only distinguishes between credible trust feedbacks, but also has the ability to detect the malicious trust feedbacks from attackers. We also present a replication determination model that dynamically decides the optimal replica number of the trust management service so that the trust management service can be always maintained at a desired availability level. The approaches have been validated by the prototype system and experimental results.

Original languageEnglish
Title of host publicationService-oriented computing
Subtitle of host publication9th international conference, ICSOC 2011, Paphos, Cyprus, December 2011 : proceedings
EditorsGerti Kappel, Zakaria Maamar, Hamid R. Motahari-Nezhad
Place of PublicationBerlin, Germany
PublisherSpringer, Springer Nature
Number of pages16
ISBN (Print)9783642255342
Publication statusPublished - 2011
Externally publishedYes
Event9th International Conference on Service-Oriented Computing, ICSOC 2011 - Paphos, Cyprus
Duration: 5 Dec 20118 Dec 2011

Publication series

NameLecture Notes in Computer Science
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other9th International Conference on Service-Oriented Computing, ICSOC 2011


  • Cloud Computing
  • Credibility Model
  • Service Availability
  • Trust Management


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