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Access control is one of the most important security mechanisms in cloud computing. Attribute-based access control provides a flexible approach that allows data owners to integrate data access policies within the encrypted data. However, little work has been done to explore temporal attributes in specifying and enforcing the data owner's policy and the data user's privileges in cloud-based environments. In this paper, we present an efficient temporal access control encryption scheme for clouddoi:10.1109/infcom.2012.6195656 dblp:conf/infocom/ZhuHAHW12 fatcat:rmeg36qtnredfk225skutvh7sq