A New Approach of Cryptography for Data Encryption and Decryption

Nowadays in the modern digital world, everything is rapidly going to be fully dependent on internet communication. Effective use of the internet makes our life easier. The information that we share on the internet has great security risks and challenges in the present day. Cryptography is the solution to secure data from different security risks. To enhance the security of communication systems better cryptosystems technology is obvious in the area of cryptography. Our research focuses on data encryption and decryption technique for a better cryptosystem; where we have proposed a new approach that ensures better performance in comparison to the state-of-the-art solutions. In this work, after generating a unique key using random characters the plain text is encrypted into ciphertext. To do this encryption, a divide and circular left and right shift approach is followed, and conversely, the reverse is maintained for decryptions as well. According to the experimental results, our proposed algorithm provides better results using the chi-square test while comparing with different cryptography algorithms.