Multi-Level Based Cryptography Approach for Securing Messaging System

This research addresses the growing challenge of cyberattacks targeting digital communications, such as unauthorized access and data theft, by proposing a secure messaging system based on advanced cryptography. The system employs a hybrid cryptographic approach, integrating RSA, DES, and AES algorithms. RSA, an asymmetric method, secures the exchange of symmetric keys, while DES and AES handle message encryption and decryption. By layering DES and AES, the system enhances robustness and resists potential attacks without sacrificing efficiency. Testing with textual data confirmed the system’s ability to uphold confidentiality, integrity, availability, and authenticity. The inclusion of AES strengthened encryption, improving resilience against cryptographic threats. Overall, the findings demonstrate that a multi-level cryptographic framework provides a practical and effective solution for applied secure messaging systems, particularly in environments requiring enhanced data protection.