SECRET KEY BASED STRING REVERSE ENABLING USER LEVEL ENCRYPTION TECHNIQUE FOR DATA SECURITY

Datain the context of a communication network is nothing but any type of stored digital information and data security is all about protecting that stored digital information. Securing data means taking protective digital privacy measures that are implemented to prevent unauthorized access to any kind of digitalinformation’s shared over the communication network. In this paper, we have proposed a technique, how an individual user can protect their data’s which is shared over the communication network. One of the principal challenges of data sharing on the data communication network is its security. This is revolving around the fact that once there is connectivity between computers sharing some resources, the issue of data security becomes critical. Cryptography provides functionality for the encryption of data, and authentication of other users. The cryptographic methodologies are one of the popular ways of achieving data security by encrypting the messages to make them non-readable. There are many cryptographic techniques available and it is an essential information security tool. It provides the four most basic benefits – Confidentiality, Authentication, Data Integrity and Non-repudiation. Nowadays the security of communication is a crucial issue over the internet and cryptography has come up as a saviour of this problem. In modern cryptography, it operates on binary bit sequences and it secures communication to possess the secret key only.