Initial Commit

iTechSharp/srcbc/asn1/pkcs/PBES2Parameters.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Collections;
+
+namespace Org.BouncyCastle.Asn1.Pkcs
+{
+    public class PbeS2Parameters
+        : Asn1Encodable
+    {
+        private readonly KeyDerivationFunc func;
+        private readonly EncryptionScheme scheme;
+
+		public PbeS2Parameters(
+            Asn1Sequence obj)
+        {
+            IEnumerator e = obj.GetEnumerator();
+
+			e.MoveNext();
+            Asn1Sequence funcSeq = (Asn1Sequence) e.Current;
+
+			if (funcSeq[0].Equals(PkcsObjectIdentifiers.IdPbkdf2))
+            {
+                func = new KeyDerivationFunc(PkcsObjectIdentifiers.IdPbkdf2, funcSeq[1]);
+            }
+            else
+            {
+                func = new KeyDerivationFunc(funcSeq);
+            }
+
+			e.MoveNext();
+            scheme = new EncryptionScheme((Asn1Sequence) e.Current);
+        }
+
+		public KeyDerivationFunc KeyDerivationFunc
+		{
+			get { return func; }
+		}
+
+		public EncryptionScheme EncryptionScheme
+		{
+			get { return scheme; }
+		}
+
+		public override Asn1Object ToAsn1Object()
+        {
+			return new DerSequence(func, scheme);
+        }
+    }
+}