1 files changed, 105 insertions, 0 deletions
diff --git a/Crypto/src/asn1/crmf/PKIArchiveOptions.cs b/Crypto/src/asn1/crmf/PKIArchiveOptions.cs
new file mode 100644
index 000000000..910f73b22
--- /dev/null
+++ b/Crypto/src/asn1/crmf/PKIArchiveOptions.cs
@@ -0,0 +1,105 @@
+using System;
+
+namespace Org.BouncyCastle.Asn1.Crmf
+{
+    public class PkiArchiveOptions
+        : Asn1Encodable, IAsn1Choice
+    {
+        public const int encryptedPrivKey = 0;
+        public const int keyGenParameters = 1;
+        public const int archiveRemGenPrivKey = 2;
+
+        private readonly Asn1Encodable value;
+
+        public static PkiArchiveOptions GetInstance(object obj)
+        {
+            if (obj is PkiArchiveOptions)
+                return (PkiArchiveOptions)obj;
+
+            if (obj is Asn1TaggedObject)
+                return new PkiArchiveOptions((Asn1TaggedObject)obj);
+
+            throw new ArgumentException("Invalid object: " + obj.GetType().Name, "obj");
+        }
+
+        private PkiArchiveOptions(Asn1TaggedObject tagged)
+        {
+            switch (tagged.TagNo)
+            {
+                case encryptedPrivKey:
+                    value = EncryptedKey.GetInstance(tagged.GetObject());
+                    break;
+                case keyGenParameters:
+                    value = Asn1OctetString.GetInstance(tagged, false);
+                    break;
+                case archiveRemGenPrivKey:
+                    value = DerBoolean.GetInstance(tagged, false);
+                    break;
+                default:
+                    throw new ArgumentException("unknown tag number: " + tagged.TagNo, "tagged");
+            }
+        }
+
+        public PkiArchiveOptions(EncryptedKey encKey)
+        {
+            this.value = encKey;
+        }
+
+        public PkiArchiveOptions(Asn1OctetString keyGenParameters)
+        {
+            this.value = keyGenParameters;
+        }
+
+        public PkiArchiveOptions(bool archiveRemGenPrivKey)
+        {
+            this.value = DerBoolean.GetInstance(archiveRemGenPrivKey);
+        }
+
+        public virtual int Type
+        {
+            get
+            {
+                if (value is EncryptedKey)
+                    return encryptedPrivKey;
+
+                if (value is Asn1OctetString)
+                    return keyGenParameters;
+
+                return archiveRemGenPrivKey;
+            }
+        }
+
+        public virtual Asn1Encodable Value
+        {
+            get { return value; }
+        }
+
+        /**
+         * <pre>
+         *  PkiArchiveOptions ::= CHOICE {
+         *      encryptedPrivKey     [0] EncryptedKey,
+         *      -- the actual value of the private key
+         *      keyGenParameters     [1] KeyGenParameters,
+         *      -- parameters which allow the private key to be re-generated
+         *      archiveRemGenPrivKey [2] BOOLEAN }
+         *      -- set to TRUE if sender wishes receiver to archive the private
+         *      -- key of a key pair that the receiver generates in response to
+         *      -- this request; set to FALSE if no archival is desired.
+         * </pre>
+         */
+        public override Asn1Object ToAsn1Object()
+        {
+            if (value is EncryptedKey)
+            {
+                return new DerTaggedObject(true, encryptedPrivKey, value);  // choice
+            }
+
+            if (value is Asn1OctetString)
+            {
+                return new DerTaggedObject(false, keyGenParameters, value);
+            }
+
+            return new DerTaggedObject(false, archiveRemGenPrivKey, value);
+        }
+    }
+}