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using System;
using Org.BouncyCastle.Asn1.Crmf;
namespace Org.BouncyCastle.Asn1.Cmp
{
public class CertOrEncCert
: Asn1Encodable, IAsn1Choice
{
public static CertOrEncCert GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is CertOrEncCert certOrEncCert)
return certOrEncCert;
return new CertOrEncCert(Asn1TaggedObject.GetInstance(obj, Asn1Tags.ContextSpecific));
}
public static CertOrEncCert GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return Asn1Utilities.GetInstanceFromChoice(taggedObject, declaredExplicit, GetInstance);
}
private readonly CmpCertificate m_certificate;
private readonly EncryptedKey m_encryptedCert;
private CertOrEncCert(Asn1TaggedObject taggedObject)
{
if (taggedObject.HasContextTag(0))
{
m_certificate = CmpCertificate.GetInstance(taggedObject.GetExplicitBaseObject());
}
else if (taggedObject.HasContextTag(1))
{
m_encryptedCert = EncryptedKey.GetInstance(taggedObject.GetExplicitBaseObject());
}
else
{
throw new ArgumentException("unknown tag: " + Asn1Utilities.GetTagText(taggedObject),
nameof(taggedObject));
}
}
public CertOrEncCert(CmpCertificate certificate)
{
m_certificate = certificate ?? throw new ArgumentNullException(nameof(certificate));
}
[Obsolete("Use constructor with EncryptedKey instead")]
public CertOrEncCert(EncryptedValue encryptedValue)
{
m_encryptedCert = new EncryptedKey(
encryptedValue ?? throw new ArgumentNullException(nameof(encryptedValue)));
}
public CertOrEncCert(EncryptedKey encryptedKey)
{
m_encryptedCert = encryptedKey ?? throw new ArgumentNullException(nameof(encryptedKey));
}
public virtual CmpCertificate Certificate => m_certificate;
public virtual EncryptedKey EncryptedCert => m_encryptedCert;
public virtual bool HasEncryptedCertificate => m_encryptedCert != null;
/**
* <pre>
* CertOrEncCert ::= CHOICE {
* certificate [0] CMPCertificate,
* encryptedCert [1] EncryptedKey
* }
* </pre>
* @return a basic ASN.1 object representation.
*/
public override Asn1Object ToAsn1Object()
{
if (m_certificate != null)
return new DerTaggedObject(true, 0, m_certificate);
if (m_encryptedCert != null)
return new DerTaggedObject(true, 1, m_encryptedCert);
throw new InvalidOperationException();
}
}
}
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