<PackageReference Include="BouncyCastle.Cryptography" Version="2.4.0" />

KeyAgreeRecipientInfo

public DerInteger Version { get; }

public KeyAgreeRecipientInfo(OriginatorIdentifierOrKey originator, Asn1OctetString ukm, AlgorithmIdentifier keyEncryptionAlgorithm, Asn1Sequence recipientEncryptedKeys)

public static KeyAgreeRecipientInfo GetInstance(object obj)

public static KeyAgreeRecipientInfo GetInstance(Asn1TaggedObject obj, bool explicitly)