ECC Curve Order

Supported on: At least Windows Server 2016, Windows 10

Registry

HKLM SOFTWARE\Policies\Microsoft\Cryptography\Configuration\SSL\00010002

Options

EccCurves multiText

Description

This policy setting determines the priority order of ECC curves used with ECDHE cipher suites. If you enable this policy setting, ECC curves are prioritized in the order specified.(Enter one Curve name per line) If you disable or do not configure this policy setting, the default ECC curve order is used. Default Curve Order ============ curve25519 NistP256 NistP384 To See all the curves supported on the system, Use the following command: CertUtil.exe -DisplayEccCurve