Abstract

Trust in security and authentication plays a major issue in cloud. the scope of unite cloud computing enlarges to existing and pervasive computing, there will be a need to assess and maintain the trustworthiness of the cloud computing entities. methods which includes single encryption, multi-level virtualization, and authentication interface. Authentication intercloud is the other main role in this paper. This paper also discussed a model of authentication intercloud which based on CA and PKI model which be extended to the scenario without CA system or it crashed. Additional encrypted parameter will be an efficient technique which provides more security to the data storage in clouds.