Size Based Access Control Model in Cloud Computing

Cloud computing is internet based computing where shared resource, software, hardware etc. are provided to devices and computers. Here in cloud computing, after negotiation, resources are provided to the users. Negotiation is done between Cloud Service Provider (CSP) and users. CSP should ensure to users that resources are secure in cloud server. Access Control is a procedure which allows data access only to authorized users. Existing access control models provide confidentiality of stored data from unauthorized user. A new access control model has been introduced in this paper namely Size Based Access Control Model in Cloud Computing (SzBAC). There are many problems when users want to access data from cloud server like data redundancy, searching cost and accessing time. By this new access control model, these problems can be reduced to some extent.