/**
* return an KeyAgreeRecipientIdentifier object from the given object.
*
* @param obj the object we want converted.
* @exception ArgumentException if the object cannot be converted.
*/
public static KeyAgreeRecipientIdentifier GetInstance(
object obj)
{
if (obj == null || obj is KeyAgreeRecipientIdentifier)
{
return((KeyAgreeRecipientIdentifier)obj);
}
if (obj is Asn1Sequence)
{
return(new KeyAgreeRecipientIdentifier(IssuerAndSerialNumber.GetInstance(obj)));
}
if (obj is Asn1TaggedObject && ((Asn1TaggedObject)obj).TagNo == 0)
{
return(new KeyAgreeRecipientIdentifier(RecipientKeyIdentifier.GetInstance(
(Asn1TaggedObject)obj, false)));
}
throw new ArgumentException("Invalid KeyAgreeRecipientIdentifier: " + obj.GetType().FullName, "obj");
}
public SmimeEncryptionKeyPreferenceAttribute(
RecipientKeyIdentifier rKeyID)
: base(SmimeAttributes.EncrypKeyPref,
new DerSet(new DerTaggedObject(false, 1, rKeyID)))
{
}
public KeyAgreeRecipientIdentifier(
RecipientKeyIdentifier rKeyID)
{
this.rKeyID = rKeyID;
}
public KeyAgreeRecipientIdentifier(
RecipientKeyIdentifier rKeyID)
{
this.rKeyID = rKeyID;
}