Cryptanalysis of the Modified SHA256
Dan Michael A. Cortez, Ariel M. Sison, Ruji P. Medina · 2020
Different security algorithms are applied to produce hashes or ciphertexts to make the data protected from any attack. To determine that these algorithms hold capabilities in security data, cryptanalysis must be performed to determine its resistance to any attack. Cryptanalysis is the process of exploring to break the code used to hash or encrypt data. In this paper, the researchers proved that the modified SHA256 is viable to length extension, brute-force and dictionary attacks. Randomness tests also showed uniform random distribution of the hashes generated by the modified SHA256.