<PackageReference Include="BouncyCastle.Cryptography" Version="2.7.0" />

Org.BouncyCastle.Crypto.Generators.X448KeyPairGenerator

Key-pair generator for X448 (RFC 7748). Only the SecureRandom from the supplied KeyGenerationParameters is used; the 56-byte clamped scalar is drawn directly from it.

Generate a fresh X448 key pair.

public virtual void Init(KeyGenerationParameters parameters)

Capture the SecureRandom that will source the scalar.