Abstract
The cloud computing environment provides easy-to-access service for private and confidential data. However, there are many threats to the leakage of private data. This paper focuses on investigating the vulnerabilities of cloud service providers (CSPs) from three risk aspects: management risks, law risks, and technology risks. Additionally, this paper presents a risk assessment model that is based on grey system theory (GST), defines indicators for assessment, and fully utilizes the analytic hierarchy process (AHP). Furthermore, we use the GST to predict the risk values by using the MATLAB platform. The GST determines the bottom evaluation sequence, while the AHP calculates the index weights. Based on the GST and the AHP, layer-based assessment values are determined for the bottom evaluation sequence and the index weights. The combination of AHP and GST aims to obtain systematic and structured well-defined procedures that are based on step-by-step processes. The AHP and GST methods are applied successfully to handle any risk assessment problem of the CSP. Furthermore, substantial challenges are encountered in determining the CSP's response time and identifying the most suitable solution out of a specified series of solutions. This issue has been handled using two additive features: the response time and the grey incidence. The final risk values are calculated and can be used for prediction by utilizing the enhanced grey model (EGM) (1,1), which reduces the prediction error by providing direct forecast to avoid the iterative prediction shortcoming of standard GM (1,1). Thus, EGM (1,1) helps maintain the reliability on a larger scale despite utilizing more prediction periods. Based on the experimental results, we evaluate the validity, accuracy, and response time of the proposed approach. The simulation experiments were conducted to validate the suitability of the proposed model. The simulation results demonstrate that our risk assessment model contributes to reducing deviation to support CSPs with the three adopted models.
Highlights
Cloud computing is becoming a business trend and an investment in many applications
BUILDING THE GREY SYSTEM MODEL (GSM) 1) BOTTOM INDEX EVALUATION To establish the relationships between the risk levels and grey clustering, our objective is to create a ‘‘whitenization’’ weight function that is based on the grey number and to use that information to transform the data that are provided by experts into a weight vector of the evaluation indices
A risk assessment model that is based on grey system theory (GST), analytic hierarchy process (AHP), and enhanced grey model (EGM) (1,1) has been introduced for cloud service providers (CSPs)
Summary
Information technology (IT) and telecommunications in businesses enable organizations to increase their profits [1]. These many companies adopt cloud computing in their businesses to maximize their profits. This causes a trust crisis in the industry [2] and creates a trade-off between gains and data privacy/security, The associate editor coordinating the review of this manuscript and approving it for publication was Kashif Munir. Most businesspeople expect that the CSP they choose will provide a reliable and safe cloud environment, which ensures that businesses can avoid severe data losses due to potential vulnerabilities and security threats in cloud computing [4], [5]. A substantial amount of research has been conducted on risk assessment [6]
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