Secure Data Handling: Performance Analysis of AES, Walsh Transform, and Hybrid Encryption

This study examines the performance of three encryption algorithms: the Walsh Transform, the Advanced Encryption Standard (AES), and a novel hybrid approach that integrates both techniques.The cryptographic strength of each method is assessed using key metrics such as entropy, avalanche effect and chi-square distribution.The evaluation focuses on the degree of randomness in the encrypted output, the sensitivity of the encryption to minor changes in the input, and the uniformity of the ciphertext distribution.The findings indicate that the hybrid AES+Walsh algorithm offers enhanced security characteristics, making it a promising solution for applications requiring robust data protection.