ARTUR VALIULIN. Enterprise Secure Messaging for Critical Infrastructure: From Signal-Class Cryptography to National Cybersecurity Strategy. The American Journal of Applied Sciences, [S. l.], v. 8, n. 06, p. 339–349, 2026. DOI: 10.37547/tajas/Volume08Issue06-18. Disponível em: https://theamericanjournals.com/index.php/tajas/article/view/8229. Acesso em: 19 jul. 2026.