Multi-dimensional dynamic trust evaluation scheme for cloud environment. Issue 91 (April 2020)

• Record Type: Journal Article
• Authors: Challagidad, Praveen S.; Birje, Mahantesh N.
• Is Part Of: Computers & security. Issue 91(2020)
• Publication Date: 2020-04
• Subjects: Cloud computing -- Trustworthiness -- Trust -- Dynamic trust evaluation scheme -- Compliance Information; Computer security -- Periodicals; Electronic data processing departments -- Security measures -- Periodicals; 005.805
• DOI: 10.1016/j.cose.2020.101722
• Languages: English
• ISSNs: 0167-4048

Abstract

Highlights: The paper presents a multidimensional dynamic trust evaluation scheme (MDTES). MDTES evaluates the trustworthiness of CSP and CC from the perspective of various stake holders like CBs, SLAAs, CAs and Peers. MDTES encompasses the dynamic character. Improvement in TOPSIS technique is accomplished using ANP and Minkowski distance and it is employed in MDTES. Mathematical explanations of MDTES are provided. The proposed methodology is simulated using CloudSim tool. Abstract: In cloud computing environment, Cloud Customers (CCs) and Cloud Service Providers (CSPs) require to evaluate the trust levels of potential partner prior to appealing in communications. The accurateness of trust evaluation significantly influences the success velocity of the communication. Determining trustworthiness dynamically is a demanding problem in an open and dynamic environment (such as cloud computing) because of huge number of CSPs offering similar types of services. Also it is a challenging job for both CCs and CSPs to mutually recognize and distinguish between the trustworthy and untrustworthy CSPs and CCs. Presently, there are very less number of dynamic trust evaluation scheme that permits CCs to evaluate the trustworthiness of CSPs from multi-dimensional perspectives (i.e., perspectives from Cloud Auditors (CAs), Cloud Brokers (CBs), Service Level Agreement Agents (SLAAs) and Peers). Similarly, there is no scheme that permits CSPs to evaluate trustworthiness of CCs. This paper proposes a Multi-dimensional Dynamic Trust Evaluation Scheme (MDTES) that facilitates CCs to evaluate the trustworthiness of CSPs from various viewpoints. Similar approach can be employed by CSPs to evaluate the trustworthiness of CCs. The proposed MDTES helps CCs to choose trustworthy CSP which provides desired QoS and CSPs to choose desired and legal CCs. The experimental results illustrate that the MDTES is dynamic, efficient and steady in distinguishing trustworthy and untrustworthy CSPs and CCs compared to other trust models.