ELSHARKAWY, M. I. Quaternion-based Encryption/Decryption of Audio Signal Using Digital Image as Variable Key. International Journal of Communication Networks and Information Security (IJCNIS), [S. l.], v. 9, n. 2, 2022. DOI: 10.17762/ijcnis.v9i2.2379. Disponível em: https://ijcnis.org/index.php/ijcnis/article/view/2379. Acesso em: 18 apr. 2024.