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using System;
namespace Org.BouncyCastle.Asn1.X509
{
/// <remarks>
/// <pre>
/// PrivateKeyUsagePeriod ::= SEQUENCE
/// {
/// notBefore [0] GeneralizedTime OPTIONAL,
/// notAfter [1] GeneralizedTime OPTIONAL }
/// </pre>
/// </remarks>
public class PrivateKeyUsagePeriod
: Asn1Encodable
{
public static PrivateKeyUsagePeriod GetInstance(
object obj)
{
if (obj is PrivateKeyUsagePeriod)
{
return (PrivateKeyUsagePeriod) obj;
}
if (obj is Asn1Sequence)
{
return new PrivateKeyUsagePeriod((Asn1Sequence) obj);
}
if (obj is X509Extension)
{
return GetInstance(X509Extension.ConvertValueToObject((X509Extension) obj));
}
throw new ArgumentException("unknown object in GetInstance: " + obj.GetType().FullName, "obj");
}
private DerGeneralizedTime _notBefore, _notAfter;
private PrivateKeyUsagePeriod(
Asn1Sequence seq)
{
foreach (Asn1TaggedObject tObj in seq)
{
if (tObj.TagNo == 0)
{
_notBefore = DerGeneralizedTime.GetInstance(tObj, false);
}
else if (tObj.TagNo == 1)
{
_notAfter = DerGeneralizedTime.GetInstance(tObj, false);
}
}
}
public DerGeneralizedTime NotBefore
{
get { return _notBefore; }
}
public DerGeneralizedTime NotAfter
{
get { return _notAfter; }
}
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector v = new Asn1EncodableVector();
if (_notBefore != null)
{
v.Add(new DerTaggedObject(false, 0, _notBefore));
}
if (_notAfter != null)
{
v.Add(new DerTaggedObject(false, 1, _notAfter));
}
return new DerSequence(v);
}
}
}
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