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using System;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.Crmf
{
public class PkiArchiveOptions
: Asn1Encodable, IAsn1Choice
{
public const int encryptedPrivKey = 0;
public const int keyGenParameters = 1;
public const int archiveRemGenPrivKey = 2;
public static PkiArchiveOptions GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is Asn1Encodable element)
{
var result = GetOptional(element);
if (result != null)
return result;
}
throw new ArgumentException("Invalid object: " + Platform.GetTypeName(obj), nameof(obj));
}
public static PkiArchiveOptions GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit) =>
Asn1Utilities.GetInstanceChoice(taggedObject, declaredExplicit, GetInstance);
public static PkiArchiveOptions GetOptional(Asn1Encodable element)
{
if (element == null)
throw new ArgumentNullException(nameof(element));
if (element is PkiArchiveOptions pkiArchiveOptions)
return pkiArchiveOptions;
if (element is Asn1TaggedObject taggedObject)
{
Asn1Encodable baseObject = GetOptionalBaseObject(taggedObject);
if (baseObject != null)
return new PkiArchiveOptions(taggedObject.TagNo, baseObject);
}
return null;
}
public static PkiArchiveOptions GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit) =>
Asn1Utilities.GetTaggedChoice(taggedObject, declaredExplicit, GetInstance);
private static Asn1Encodable GetOptionalBaseObject(Asn1TaggedObject taggedObject)
{
if (taggedObject.HasContextTag())
{
switch (taggedObject.TagNo)
{
case encryptedPrivKey:
// CHOICE so explicit
return EncryptedKey.GetInstance(taggedObject, true);
case keyGenParameters:
return Asn1OctetString.GetInstance(taggedObject, false);
case archiveRemGenPrivKey:
return DerBoolean.GetInstance(taggedObject, false);
}
}
return null;
}
private readonly int m_tagNo;
private readonly Asn1Encodable m_obj;
private PkiArchiveOptions(int tagNo, Asn1Encodable obj)
{
m_tagNo = tagNo;
m_obj = obj ?? throw new ArgumentNullException(nameof(obj));
}
public PkiArchiveOptions(EncryptedKey encKey)
: this(encryptedPrivKey, encKey)
{
}
public PkiArchiveOptions(Asn1OctetString keyGenParameters)
: this(PkiArchiveOptions.keyGenParameters, keyGenParameters)
{
}
public PkiArchiveOptions(bool archiveRemGenPrivKey)
: this(PkiArchiveOptions.archiveRemGenPrivKey, DerBoolean.GetInstance(archiveRemGenPrivKey))
{
}
public virtual int Type => m_tagNo;
public virtual Asn1Encodable Value => m_obj;
/**
* <pre>
* PkiArchiveOptions ::= CHOICE {
* encryptedPrivKey [0] EncryptedKey,
* -- the actual value of the private key
* keyGenParameters [1] KeyGenParameters,
* -- parameters which allow the private key to be re-generated
* archiveRemGenPrivKey [2] BOOLEAN }
* -- set to TRUE if sender wishes receiver to archive the private
* -- key of a key pair that the receiver generates in response to
* -- this request; set to FALSE if no archival is desired.
* </pre>
*/
public override Asn1Object ToAsn1Object()
{
// NOTE: Explicit tagging automatically applied for EncryptedKey (a CHOICE)
return new DerTaggedObject(false, m_tagNo, m_obj);
}
}
}
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