This paper presents a design of data encryption and decryption in a network environment using RSA algorithm with a specific message block size.

This algorithm was provided for completeness. IDEA International Data Encryption Algorithm was produced by Xuejia Lai and James Massey.

With algorithmic decryption advancements by cybercriminals threatening standard cryptographic algorithms, business leaders must ensure their algorithms are not susceptible to being cracked.

Cryptography is the art of keeping information secret and safe by transforming it into form that unintended recipients cannot understand. It makes secure data transmission over the internet possible.

With experts suggesting that quantum computers will decrypt public key algorithms by 2030, quantum risk cryptography is becoming vital.

In this paper, the authors used the stream cipher which is the best way with the algorithm Geffe generator with a specific length to encryption the information from plain text in the first compute.

In 2021, Booz Allen Hamilton analysts surmised that China will surpass Europe and the US in quantum-related research and development and that Chinese hackers could soon target heavily encrypted ...