Create an internal ECDSA certificate authority for VPN gateways
You can create one Internal ECDSA CA for Gateways.
The Elliptic Curve Digital Signature Algorithm (ECDSA) is a digital signature algorithm that uses elliptic curve cryptography. You can use both an Internal ECDSA CA for Gateways and an Internal RSA CA for Gateways at the same time. When there is more than one valid CA, you can select which CA signs each certificate.
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