SafeBag
using System;
namespace Org.BouncyCastle.Asn1.Pkcs
{
public class SafeBag : Asn1Encodable
{
private readonly DerObjectIdentifier m_bagID;
private readonly Asn1Encodable m_bagValue;
private readonly Asn1Set m_bagAttributes;
public DerObjectIdentifier BagID => m_bagID;
public Asn1Object BagValue => m_bagValue.ToAsn1Object();
public Asn1Encodable BagValueEncodable => m_bagValue;
public Asn1Set BagAttributes => m_bagAttributes;
public static SafeBag GetInstance(object obj)
{
if (obj == null)
return null;
SafeBag safeBag = obj as SafeBag;
if (safeBag != null)
return safeBag;
return new SafeBag(Asn1Sequence.GetInstance(obj));
}
public static SafeBag GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return new SafeBag(Asn1Sequence.GetInstance(taggedObject, declaredExplicit));
}
public static SafeBag GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return new SafeBag(Asn1Sequence.GetTagged(taggedObject, declaredExplicit));
}
private SafeBag(Asn1Sequence seq)
{
int count = seq.Count;
int sequencePosition = 0;
if (count < 2 || count > 3)
throw new ArgumentException("Bad sequence size: " + count.ToString(), "seq");
m_bagID = DerObjectIdentifier.GetInstance(seq[sequencePosition++]);
m_bagValue = Asn1TaggedObject.GetInstance(seq[sequencePosition++], 128, 0).GetExplicitBaseObject();
m_bagAttributes = Asn1Utilities.ReadOptional(seq, ref sequencePosition, Asn1Set.GetOptional);
if (sequencePosition != count)
throw new ArgumentException("Unexpected elements in sequence", "seq");
}
public SafeBag(DerObjectIdentifier oid, Asn1Object obj)
: this(oid, obj, null)
{
}
public SafeBag(DerObjectIdentifier oid, Asn1Object obj, Asn1Set bagAttributes)
{
if (oid == null)
throw new ArgumentNullException("oid");
m_bagID = oid;
if (obj == null)
throw new ArgumentNullException("obj");
m_bagValue = obj;
m_bagAttributes = bagAttributes;
}
public SafeBag(DerObjectIdentifier bagID, Asn1Encodable bagValue)
: this(bagID, bagValue, null)
{
}
public SafeBag(DerObjectIdentifier bagID, Asn1Encodable bagValue, Asn1Set bagAttributes)
{
if (bagID == null)
throw new ArgumentNullException("bagID");
m_bagID = bagID;
if (bagValue == null)
throw new ArgumentNullException("bagValue");
m_bagValue = bagValue;
m_bagAttributes = bagAttributes;
}
public override Asn1Object ToAsn1Object()
{
DerTaggedObject derTaggedObject = new DerTaggedObject(true, 0, m_bagValue);
if (m_bagAttributes != null)
return new DerSequence(m_bagID, derTaggedObject, m_bagAttributes);
return new DerSequence(m_bagID, derTaggedObject);
}
}
}