G. . Sosa-Gómez, O. . Rojas, and O. . Páez-Osuna, “Using Hadamard transform for cryptanalysis of pseudo-random generators in stream ciphers”, EAI Endorsed Trans Energy Web, vol. 7, no. 27, p. e1, Apr. 2020, doi: 10.4108/eai.13-7-2018.163980.