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Technology has been touching user's lives in almost every domain. With the advent of modern technologies, the need of enhancing its security also arises. Data security has become one of the most important issues of concern. Data security is achieved with the help of adapting certain security measures. Here, in this paper, the authors have analyzed the various cryptographic concepts. Encryption and decryption are two most important aspects of cryptography and data security. The special light has been thrown on data integrity and protection issues. The RSA algorithm has been explained. The implementation of the algorithm has also been given with the help of proving a graphical interface.