Graph-Based Unified Cryptographic system for Secure Communication and Financial Transactions. Pi International Journal of Mathematical Sciences, [S. l.], v. 1, n. 2, p. 31–43, 2025. DOI: 10.59828/pijms.v1i2.8. Disponível em: https://pijms.com/index.php/pijms/article/view/8. Acesso em: 25 mar. 2026.