Securing Text Files: A Comprehensive Study on AES and Diffie-Hellman Encryption

In today's digital landscape, data security is of utmost importance, and cryptography plays a crucial role in safeguarding sensitive information. This review papermeticulously examines recent developments in cryptographic methodologies, covering enhancements in the Playfair cipher, integration of cryptography with steganography for smart devices, advancements in Elliptic Curve Cryptography (ECC), and the efficacy ofAdvanced Encryption Standard (AES) in cloud computing. Additionally, it discusses innovative approaches to mitigating security vulnerabilities, such as RSA DiffieHellman integration, and explores the utilization of chaos theory in symmetric text cipher algorithms. Lastly, the paper examines advancements in text-to-image encryption-decryption algorithms, focusing on the utilization of CMYK mode. By synthesizing findings from diverse studies, this review offers valuable insights into emerging trends and future research directions in data security and encryption.