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

AttCertIssuer

public Asn1Encodable Issuer { get; }

Don't use this one if you are trying to be RFC 3281 compliant. Use it for v1 attribute certificates only.

public AttCertIssuer(V2Form v2Form)

public static AttCertIssuer GetInstance(object obj)

public static AttCertIssuer GetInstance(Asn1TaggedObject obj, bool isExplicit)

public static AttCertIssuer GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit)