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using System;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.Cms
{
public class OriginatorPublicKey
: Asn1Encodable
{
private readonly AlgorithmIdentifier mAlgorithm;
private readonly DerBitString mPublicKey;
public OriginatorPublicKey(
AlgorithmIdentifier algorithm,
byte[] publicKey)
{
this.mAlgorithm = algorithm;
this.mPublicKey = new DerBitString(publicKey);
}
private OriginatorPublicKey(Asn1Sequence seq)
{
this.mAlgorithm = AlgorithmIdentifier.GetInstance(seq[0]);
this.mPublicKey = DerBitString.GetInstance(seq[1]);
}
/**
* return an OriginatorPublicKey object from a tagged object.
*
* @param obj the tagged object holding the object we want.
* @param explicitly 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 OriginatorPublicKey GetInstance(
Asn1TaggedObject obj,
bool explicitly)
{
return GetInstance(Asn1Sequence.GetInstance(obj, explicitly));
}
/**
* return an OriginatorPublicKey object from the given object.
*
* @param obj the object we want converted.
* @exception ArgumentException if the object cannot be converted.
*/
public static OriginatorPublicKey GetInstance(
object obj)
{
if (obj == null || obj is OriginatorPublicKey)
return (OriginatorPublicKey)obj;
if (obj is Asn1Sequence)
return new OriginatorPublicKey(Asn1Sequence.GetInstance(obj));
throw new ArgumentException("Invalid OriginatorPublicKey: " + Platform.GetTypeName(obj));
}
public AlgorithmIdentifier Algorithm
{
get { return mAlgorithm; }
}
public DerBitString PublicKey
{
get { return mPublicKey; }
}
/**
* Produce an object suitable for an Asn1OutputStream.
* <pre>
* OriginatorPublicKey ::= Sequence {
* algorithm AlgorithmIdentifier,
* publicKey BIT STRING
* }
* </pre>
*/
public override Asn1Object ToAsn1Object()
{
return new DerSequence(mAlgorithm, mPublicKey);
}
}
}
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