<PackageReference Include="System.Security.Cryptography.Cng" Version="5.0.0-preview.7.20364.11" />

System.Security.Cryptography.ECDiffieHellmanKeyDerivationFunction

Specifies the key derivation function that the ECDiffieHellmanCng class will use to convert secret agreements into key material.
namespace System.Security.Cryptography { public enum ECDiffieHellmanKeyDerivationFunction { Hash, Hmac, Tls } }