1 files changed, 82 insertions, 0 deletions
diff --git a/crypto/src/asn1/x509/PrivateKeyUsagePeriod.cs b/crypto/src/asn1/x509/PrivateKeyUsagePeriod.cs
new file mode 100644
index 000000000..ad2961eb0
--- /dev/null
+++ b/crypto/src/asn1/x509/PrivateKeyUsagePeriod.cs
@@ -0,0 +1,82 @@
+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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