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1 International Journal of Electronics and Telecommunications

1 2025

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Statistical analysis of enhanced SDEx encryption method based on BLAKE3 hash function

Hłobaż Artur, Pawlak Maciej

International Journal of Electronics and Telecommunications

2025

Vol. 71, No. 4

This paper presents a statistical analysis of the enhanced SDEx (Secure Data Exchange) encryption method, using a version that incorporates two session keys. This method has not previously been combined with the BLAKE3 hash function. The statistical analysis was conducted using the NIST Statistical Test Suite. Several real-world sample files were encrypted using the proposed method and then subjected to statistical analysis through selected tests from the NIST suite. These tests aimed to determine whether the resulting ciphertexts meet the criteria for pseudorandomness. Additionally, compression tests were performed using WinRAR, which confirmed that the ciphertexts are not compressible.