Cloud Computing Privacy Security Risk Assessment

The most pressing questions about the application and development of cloud computing is privacy risks, as it has become the key factor of whether the user to consider the adoption of cloud services. In order to better understand the risks, dissolve risks or make its control in an acceptable range, risk assessment is very necessary. However. specialized research on cloud computing privacy security risk evaluation has not yet been found.The paper is studied in detail and system for the model of cloud computing process, formal modeling and the model of privacy security risks and risk assessment in the service process.Firstly, it studies the architecture of cloud computing and service process.Then, this paper analyzes the research actuality of cloud computing privacy security, combs a number of cloud computing privacy security risks on the basis of digging deep into the characteristics of cloud computing and previous studies, and establishes an evaluation index system of cloud computing privacy security risks initiatively.And then, this paper uses the entropy weight theory, fuzzy set theory and Markoff chain principle to establish a fusion of multiple factors of cloud computing privacy security risk assessment model, reduces the subjective effect of the assessment process through the information entropy, which makes the evaluation more objective. It calculates the interlocking risk transfer probability through the Markoff chain. At last, a practical case is given to prove the feasibility, rationality and effectiveness of this evaluation method.Finally, the calculation of the privacy protection at home and abroad and the existing cloud computing privacy risk gives the privacy protection scheme for cloud computing.To sum up, this paper detailed the process of cloud computing services, and then analyzes the safety risk factors existing in the process of privacy, finally puts forward the safety risk assessment model. The instantiation of the validity of the model is verified, privacy and security risk assessment in the process of service for cloud has come up with a new idea. It puts forward the privacy protection scheme, and provides a reference for the privacy and security of cloud computing.