AWS Site-to-Site VPN now supports additional encryption, integrity and key exchange algorithms
You can now use additional encryption, integrity, and key exchange algorithms for your VPN connections. These advanced algorithms provide higher security to protect your data, higher performance for faster transfer rates, and help meet compliance requirements. These algorithms are available as tunnel options for new and existing VPN connections and can be accessed through the AWS Management console, AWS Cloud Development Kit (CDK), or the AWS Command Line Interface (CLI). These algorithms listed below provide customers with more flexibility to choose configurations that best suit their security, performance, and compliance requirements.
Source:: Amazon AWS