AntiMalware

https://www.anti-malware.ru/compare/certified-russian-TLS-gateways

https://www.anti-malware.ru/analytics/Market_Analysis/cryptographic-gateways-russian-and-foreign-manufacturers-2017

https://www.anti-malware.ru/reviews/kontinent-4

https://www.anti-malware.ru/reviews/cryptopro-ngate-vpn-gateway