<PackageReference Include="BouncyCastle.Cryptography" Version="2.3.0" />

Org.BouncyCastle.Asn1.Pkcs.IssuerAndSerialNumber

namespace Org.BouncyCastle.Asn1.Pkcs { public class IssuerAndSerialNumber : Asn1Encodable { public X509Name Name { get; } public DerInteger CertificateSerialNumber { get; } public static IssuerAndSerialNumber GetInstance(object obj); public IssuerAndSerialNumber(X509Name name, BigInteger certSerialNumber); public IssuerAndSerialNumber(X509Name name, DerInteger certSerialNumber); } }