Data Security in Cloud Environment Based on Comparative Performance Evaluation of Cryptographic Algorithms

With the extensive use of cloud environment to store sensitive data, the need for data security has been on the rise.The data being stored in multiple location servers, in fragments, makes it cumbersome to manage in terms of ease of access and privacy.Data security, being a crucial factor in several fields, is being extensively researched upon.In order to preserve data confidentiality from unauthorized access, hackers, and intruders, cryptography has proven to be highly effective.Although widespread research is already available on this area, the need to upgrade the degree of security witnesses the frequent introduction of new cryptographic schemes.This paper provides a review of some of the prevalent cryptographic techniques utilized in data storage, particularly cloud environments, to safeguard data integrity and privacy.The comparison of efficiency of various algorithms, in terms of operational time consumption, has been provided along with simulation results for comparative analysis of symmetric, asymmetric algorithms, as well as hashing mechanisms.