%0 Journal Article %T Access control in cloud computing environment %A Abdul Raouf Khan %J Journal of Engineering and Applied Sciences %D 2012 %I Asian Research Publishing Network (ARPN) %X Cloud computing is one of the emerging technologies. The cloud environment is a large open distributed system. It is important to preserve the data, as well as, privacy of users. Access Control methods ensure that authorized user¡¯s access the data and the system. This paper discusses various features of attribute based access control mechanism, suitable for cloud computing environment. It leads to the design of attribute based access control mechanism for cloud computing. %K cloud computing %K access control %K role based access control %K RBAC. %U http://www.arpnjournals.com/jeas/research_papers/rp_2012/jeas_0512_699.pdf