Hybrid Cryptographic Algorithm Based on Aes, Rsa and Walsh Transform

This paper proposes a hybrid cryptographic algorithm combining the RSA algorithm and the Walsh transform to enhance data security and performance. The hybrid approach leverages the strengths of asymmetric encryption (RSA) and the computational efficiency of the Walsh Transform. RSA ensures robust key exchange security, and the Walsh Transform introduces lightweight linear operations for preprocessing data. Experimental results demonstrate the hybrid algorithm's superior performance, achieving robust encryption with a notable trade-off between speed and security. Comparative analyses against standalone RSA and Walsh methods reveal the hybrid algorithm's competitive edge, particularly in high-security scenarios. Key challenges, including computational overhead and implementation complexity, are also discussed, along with future improvements. Our scientific group has begun exploring the applications of the Walsh transform in both textual and audio information processing. Specifically, this includes the development of new hybrid algorithms, such as AES and RSA. This work will present the hybrid algorithm combining the RSA algorithm and the Walsh transform.