Analysis of Security Algorithms in Cloud Environment

Abstract

Cloud computing is a virtual pool of resources and it provides these resources to users via the internet. People are storing their huge amount of data over the cloud. In recent years, Storage in Cloud gained popularity among both companies and private users. However, data privacy, security, reliability and interoperability issues still have to be adequately solved. But the most important problem is security and how cloud provider assures it. For ensuring privacy there are multiple encryption algorithms. Encryption is the process of encoding information or data precisely to prevent unauthorized access. This paper discusses the comparison of various cryptographic encryption algorithms with their various key features & then later discusses their performance cost based on the encryption time, decryption time, power consumption, memory usage, latency and security level. Moreover, this paper has compared the efficiency of each algorithm in cloud computing. The comparison will be between symmetric key algorithms which will include blowfish, AES-256 algorithm, Asymmetric algorithms like RSA, hybrid algorithms like RSA with AES-256 and RSA with blowfish.