1 files changed, 74 insertions, 0 deletions
diff --git a/crypto/src/asn1/Asn1UniversalTypes.cs b/crypto/src/asn1/Asn1UniversalTypes.cs
new file mode 100644
index 000000000..214918bcd
--- /dev/null
+++ b/crypto/src/asn1/Asn1UniversalTypes.cs
@@ -0,0 +1,74 @@
+using System;
+
+namespace Org.BouncyCastle.Asn1
+{
+    internal sealed class Asn1UniversalTypes
+    {
+        private Asn1UniversalTypes()
+        {
+        }
+
+        internal static Asn1UniversalType Get(int tagNo)
+        {
+            switch (tagNo)
+            {
+            case Asn1Tags.Boolean:
+                return DerBoolean.Meta.Instance;
+            case Asn1Tags.Integer:
+                return DerInteger.Meta.Instance;
+            case Asn1Tags.BitString:
+                return DerBitString.Meta.Instance;
+            case Asn1Tags.OctetString:
+                return Asn1OctetString.Meta.Instance;
+            case Asn1Tags.Null:
+                return Asn1Null.Meta.Instance;
+            case Asn1Tags.ObjectIdentifier:
+                return DerObjectIdentifier.Meta.Instance;
+            case Asn1Tags.ObjectDescriptor:         // [UNIVERSAL 7] IMPLICIT GraphicString
+                return Asn1ObjectDescriptor.Meta.Instance;
+            case Asn1Tags.External:
+                return DerExternal.Meta.Instance;
+            case Asn1Tags.Enumerated:
+                return DerEnumerated.Meta.Instance;
+            case Asn1Tags.Utf8String:               // [UNIVERSAL 12] IMPLICIT OCTET STRING (encode as if)
+                return DerUtf8String.Meta.Instance;
+            case Asn1Tags.RelativeOid:
+                return Asn1RelativeOid.Meta.Instance;
+            case Asn1Tags.Sequence:
+                return Asn1Sequence.Meta.Instance;
+            case Asn1Tags.Set:
+                return Asn1Set.Meta.Instance;
+            case Asn1Tags.NumericString:            // [UNIVERSAL 18] IMPLICIT OCTET STRING (encode as if)
+                return DerNumericString.Meta.Instance;
+            case Asn1Tags.PrintableString:          // [UNIVERSAL 19] IMPLICIT OCTET STRING (encode as if)
+                return DerPrintableString.Meta.Instance;
+            case Asn1Tags.T61String:                // [UNIVERSAL 20] IMPLICIT OCTET STRING (encode as if)
+                return DerT61String.Meta.Instance;
+            case Asn1Tags.VideotexString:           // [UNIVERSAL 21] IMPLICIT OCTET STRING (encode as if)
+                return DerVideotexString.Meta.Instance;
+            case Asn1Tags.IA5String:                // [UNIVERSAL 22] IMPLICIT OCTET STRING (encode as if)
+                return DerIA5String.Meta.Instance;
+            case Asn1Tags.UtcTime:                  // [UNIVERSAL 23] IMPLICIT VisibleString (restricted values)
+                return DerUtcTime.Meta.Instance;
+            case Asn1Tags.GeneralizedTime:          // [UNIVERSAL 24] IMPLICIT VisibleString (restricted values)
+                return DerGeneralizedTime.Meta.Instance;
+            case Asn1Tags.GraphicString:            // [UNIVERSAL 25] IMPLICIT OCTET STRING (encode as if)
+                return DerGraphicString.Meta.Instance;
+            case Asn1Tags.VisibleString:            // [UNIVERSAL 26] IMPLICIT OCTET STRING (encode as if)
+                return DerVisibleString.Meta.Instance;
+            case Asn1Tags.GeneralString:            // [UNIVERSAL 27] IMPLICIT OCTET STRING (encode as if)
+                return DerGeneralString.Meta.Instance;
+            case Asn1Tags.UniversalString:          // [UNIVERSAL 28] IMPLICIT OCTET STRING (encode as if)
+                return DerUniversalString.Meta.Instance;
+            case Asn1Tags.BmpString:                // [UNIVERSAL 30] IMPLICIT OCTET STRING (encode as if)
+                return DerBmpString.Meta.Instance;
+
+            case Asn1Tags.Real:
+            case Asn1Tags.EmbeddedPdv:
+            case Asn1Tags.UnrestrictedString:
+            default:
+                return null;
+            }
+        }
+    }
+}