Ensuring the Security of Transactions in Financial Information Networks Based on Modern Symmetric Cryptosystems in the Digital Economy. - Kuvonchbek Rakhimberdiev; Azam Kutbiddin Azamzade; Samariddin Makhmudov; Toshpulov Bekzod; Mamasoliyev Sarvar (NEW2AN/ruSMART (1), 2024)