Statistical Analysis of Enhanced SDEx Encryption Method Based on SHA-512 Hash Function
Artur Hłobaż · 2020
The paper presents statistical analysis of the enhanced SDEx method based on SHA-512 hash function. Statistical analysis of the method is performed in a similar way as for the method with the SHA-256, described in [9]. To realize it the ciphertext files were tested to check if they fulfill the conditions of pseudo-randomness. To test the pseudo-randomness of the encrypted files, a test package shared by NIST was used for this purpose. Additionally, compression tests on encrypted files were performed using the WinRAR software. The SDEx method based on SHA-512 hash function is faster and provides similar or higher level of security than AES with 256-bit key. The method can be used to secure end-to-end encryption in data transferring.