1 files changed, 118 insertions, 0 deletions
diff --git a/Crypto/src/asn1/x509/NameConstraints.cs b/Crypto/src/asn1/x509/NameConstraints.cs
new file mode 100644
index 000000000..c178f5b45
--- /dev/null
+++ b/Crypto/src/asn1/x509/NameConstraints.cs
@@ -0,0 +1,118 @@
+using System;
+using System.Collections;
+
+namespace Org.BouncyCastle.Asn1.X509
+{
+ public class NameConstraints
+ : Asn1Encodable
+ {
+ private Asn1Sequence permitted, excluded;
+
+ public static NameConstraints GetInstance(
+ object obj)
+ {
+ if (obj == null || obj is NameConstraints)
+ {
+ return (NameConstraints) obj;
+ }
+
+ if (obj is Asn1Sequence)
+ {
+ return new NameConstraints((Asn1Sequence) obj);
+ }
+
+ throw new ArgumentException("unknown object in factory: " + obj.GetType().Name, "obj");
+ }
+
+ public NameConstraints(
+ Asn1Sequence seq)
+ {
+ foreach (Asn1TaggedObject o in seq)
+ {
+ switch (o.TagNo)
+ {
+ case 0:
+ permitted = Asn1Sequence.GetInstance(o, false);
+ break;
+ case 1:
+ excluded = Asn1Sequence.GetInstance(o, false);
+ break;
+ }
+ }
+ }
+
+#if !(SILVERLIGHT || PORTABLE)
+ public NameConstraints(
+ ArrayList permitted,
+ ArrayList excluded)
+ : this((IList)permitted, (IList)excluded)
+ {
+ }
+#endif
+
+ /**
+ * Constructor from a given details.
+ *
+ * <p>permitted and excluded are Vectors of GeneralSubtree objects.</p>
+ *
+ * @param permitted Permitted subtrees
+ * @param excluded Excluded subtrees
+ */
+ public NameConstraints(
+ IList permitted,
+ IList excluded)
+ {
+ if (permitted != null)
+ {
+ this.permitted = CreateSequence(permitted);
+ }
+
+ if (excluded != null)
+ {
+ this.excluded = CreateSequence(excluded);
+ }
+ }
+
+ private DerSequence CreateSequence(
+ IList subtrees)
+ {
+ GeneralSubtree[] gsts = new GeneralSubtree[subtrees.Count];
+ for (int i = 0; i < subtrees.Count; ++i)
+ {
+ gsts[i] = (GeneralSubtree)subtrees[i];
+ }
+ return new DerSequence(gsts);
+ }
+
+ public Asn1Sequence PermittedSubtrees
+ {
+ get { return permitted; }
+ }
+
+ public Asn1Sequence ExcludedSubtrees
+ {
+ get { return excluded; }
+ }
+
+ /*
+ * NameConstraints ::= SEQUENCE { permittedSubtrees [0] GeneralSubtrees
+ * OPTIONAL, excludedSubtrees [1] GeneralSubtrees OPTIONAL }
+ */
+ public override Asn1Object ToAsn1Object()
+ {
+ Asn1EncodableVector v = new Asn1EncodableVector();
+
+ if (permitted != null)
+ {
+ v.Add(new DerTaggedObject(false, 0, permitted));
+ }
+
+ if (excluded != null)
+ {
+ v.Add(new DerTaggedObject(false, 1, excluded));
+ }
+
+ return new DerSequence(v);
+ }
+ }
+}
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