Abstract

The paper describes the modeling design of data security in Cloud Computing. Data security can be defined as confidence and integrity maintenance of data processed by an organization. In the paper, dealing with data security in all layers of cloud computing is discussed. The standard cloud storage uses three-level data security model in cloud computing which can be extended by a forth level responsible for the data integrity check. The model of data security in cloud computing was designed as an expansion of the present standard use of data storage model in cloud computing. The paper presents the design of a four-level data security model in cloud computing within which by the use of Petri nets it describes each part of data security in cloud computing.

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