public override bool Equals(
object obj)
{
if (obj == this)
{
return(false);
}
OriginatorID id = obj as OriginatorID;
if (id == null)
{
return(false);
}
return(Arrays.AreEqual(SubjectKeyIdentifier, id.SubjectKeyIdentifier) &&
Platform.Equals(SerialNumber, id.SerialNumber) &&
IssuersMatch(Issuer, id.Issuer));
}
private AsymmetricKeyParameter GetSenderPublicKey(
AsymmetricKeyParameter receiverPrivateKey,
OriginatorIdentifierOrKey originator)
{
OriginatorPublicKey opk = originator.OriginatorPublicKey;
if (opk != null)
{
return GetPublicKeyFromOriginatorPublicKey(receiverPrivateKey, opk);
}
OriginatorID origID = new OriginatorID();
Asn1.Cms.IssuerAndSerialNumber iAndSN = originator.IssuerAndSerialNumber;
if (iAndSN != null)
{
origID.Issuer = iAndSN.Name;
origID.SerialNumber = iAndSN.SerialNumber.Value;
}
else
{
SubjectKeyIdentifier ski = originator.SubjectKeyIdentifier;
origID.SubjectKeyIdentifier = ski.GetKeyIdentifier();
}
return GetPublicKeyFromOriginatorID(origID);
}
private AsymmetricKeyParameter GetPublicKeyFromOriginatorID(
OriginatorID origID)
{
// TODO Support all alternatives for OriginatorIdentifierOrKey
// see RFC 3852 6.2.2
throw new CmsException("No support for 'originator' as IssuerAndSerialNumber or SubjectKeyIdentifier");
}