<PackageReference Include="NETStandard.Library" Version="2.0.1" />

System.Security.Cryptography.AsymmetricKeyExchangeDeformatter

public abstract class AsymmetricKeyExchangeDeformatter
namespace System.Security.Cryptography { public abstract class AsymmetricKeyExchangeDeformatter { public abstract string Parameters { get; set; } protected AsymmetricKeyExchangeDeformatter(); public abstract byte[] DecryptKeyExchange(byte[] rgb); public abstract void SetKey(AsymmetricAlgorithm key); } }