SSL VPN阿里云

https://help.aliyun.com/zh/vpn/getting-started/connect-a-client-to-a-vpc?spm=a2c4g.11186623.0.0.497b2b99rlm8xE

• 国密型VPN网关，您需要为国密型VPN网关绑定2个SSL证书，分别用于数据加密和身份认证
  https://help.aliyun.com/zh/vpn/user-guide/manage-ssl-certificates

SSL服务端

绑定SSL证书

• 阿里云国密证书

https://help.aliyun.com/zh/ssl-certificate/user-guide/functions-and-features