<PackageReference Include="System.Security.Cryptography.Pkcs" Version="11.0.0-preview.5.26302.115" />

System.Security.Cryptography.Asn1.X509ExtensionAsn

namespace System.Security.Cryptography.Asn1 { internal struct X509ExtensionAsn { public X509ExtensionAsn(X509Extension extension); } }