Cloud security architecture based on user authentication and symmetric key cryptographic techniques

Cloud computing environment gives people to share resources, services and information. This environment is adopted by large number of organizations, so the rapid transition towards the cloud has fuelled concerns on security perspective. Encryption algorithms play main role in solving such kind of problems in the cloud computing environment. This paper proposes the structure for cloud security with efficient security in communication system and AES based file encryption system. This security architecture can be easily applied on PaaS, IaaS and SaaS and one time password provides extra security in the authenticating users. This paper presents the security of whole cloud computing environment.