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

AttributeTypeAndValue

public virtual DerObjectIdentifier Type { get; }

public virtual Asn1Encodable Value { get; }

public static AttributeTypeAndValue GetInstance(object obj)

public static AttributeTypeAndValue GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit)

public static AttributeTypeAndValue GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit)