A lightweight effective randomized caesar cipher algorithm for security of data

Abstract

In any kind of organization in the present scenario, raw data or meaningful data needs to be shared among different personnel; therefore, the chances of frauds or treachery are more that creates vulnerability in the working environment. Therefore, the protection of organizations’ confidential and sensitive data among different levels of employees against these kinds of theft or illegal activity that violates the company security policy is prerequisite. ABE pronounced as attribute-based encryption was introduced. ABE is a parameter that plays a vital role in providing access control in a fine-grained manner for outsourcing data in a data sharing system. Moreover, CP-ABE was introduced that defines an access policy in order to cover all the attributes within the system. In this scheme, for encryption and decryption purposes, the user’s private key is accompanied to the group of attributes. but due to its lack of efficiency and several other paradigms, it was proved ineffective. Hence, in order to overcome the existing issues, we have implemented a new cryptographic algorithm which is competent enough to encrypt and decrypt any type of file that contains any kind of data written in the range of ASCII values. We named this algorithm as randomized Caesar cipher algorithm.