89 lines
2.1 KiB
C#
89 lines
2.1 KiB
C#
using System;
|
|
|
|
namespace Org.BouncyCastle.Asn1.Cms
|
|
{
|
|
public class RecipientEncryptedKey
|
|
: Asn1Encodable
|
|
{
|
|
private readonly KeyAgreeRecipientIdentifier identifier;
|
|
private readonly Asn1OctetString encryptedKey;
|
|
|
|
private RecipientEncryptedKey(
|
|
Asn1Sequence seq)
|
|
{
|
|
identifier = KeyAgreeRecipientIdentifier.GetInstance(seq[0]);
|
|
encryptedKey = (Asn1OctetString) seq[1];
|
|
}
|
|
|
|
/**
|
|
* return an RecipientEncryptedKey object from a tagged object.
|
|
*
|
|
* @param obj the tagged object holding the object we want.
|
|
* @param isExplicit true if the object is meant to be explicitly
|
|
* tagged false otherwise.
|
|
* @exception ArgumentException if the object held by the
|
|
* tagged object cannot be converted.
|
|
*/
|
|
public static RecipientEncryptedKey GetInstance(
|
|
Asn1TaggedObject obj,
|
|
bool isExplicit)
|
|
{
|
|
return GetInstance(Asn1Sequence.GetInstance(obj, isExplicit));
|
|
}
|
|
|
|
/**
|
|
* return a RecipientEncryptedKey object from the given object.
|
|
*
|
|
* @param obj the object we want converted.
|
|
* @exception ArgumentException if the object cannot be converted.
|
|
*/
|
|
public static RecipientEncryptedKey GetInstance(
|
|
object obj)
|
|
{
|
|
if (obj == null || obj is RecipientEncryptedKey)
|
|
{
|
|
return (RecipientEncryptedKey) obj;
|
|
}
|
|
|
|
if (obj is Asn1Sequence)
|
|
{
|
|
return new RecipientEncryptedKey((Asn1Sequence) obj);
|
|
}
|
|
|
|
throw new ArgumentException("Invalid RecipientEncryptedKey: " + obj.GetType().FullName, "obj");
|
|
}
|
|
|
|
public RecipientEncryptedKey(
|
|
KeyAgreeRecipientIdentifier id,
|
|
Asn1OctetString encryptedKey)
|
|
{
|
|
this.identifier = id;
|
|
this.encryptedKey = encryptedKey;
|
|
}
|
|
|
|
public KeyAgreeRecipientIdentifier Identifier
|
|
{
|
|
get { return identifier; }
|
|
}
|
|
|
|
public Asn1OctetString EncryptedKey
|
|
{
|
|
get { return encryptedKey; }
|
|
}
|
|
|
|
/**
|
|
* Produce an object suitable for an Asn1OutputStream.
|
|
* <pre>
|
|
* RecipientEncryptedKey ::= SEQUENCE {
|
|
* rid KeyAgreeRecipientIdentifier,
|
|
* encryptedKey EncryptedKey
|
|
* }
|
|
* </pre>
|
|
*/
|
|
public override Asn1Object ToAsn1Object()
|
|
{
|
|
return new DerSequence(identifier, encryptedKey);
|
|
}
|
|
}
|
|
}
|