<PackageReference Include="BouncyCastle.Cryptography" Version="2.5.1" />

DerStringBase

public abstract class DerStringBase : Asn1Object, IAsn1String
namespace Org.BouncyCastle.Asn1 { public abstract class DerStringBase : Asn1Object, IAsn1String { public abstract string GetString(); public override string ToString() { return GetString(); } protected override int Asn1GetHashCode() { return GetString().GetHashCode(); } } }