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Packages/com.tivadar.best.http/Runtime/3rdParty/BouncyCastle/asn1/pkcs/PBES2Parameters.cs

@@ -0,0 +1,67 @@
+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+#pragma warning disable
+using System;
+
+namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.Pkcs
+{
+    public class PbeS2Parameters
+        : Asn1Encodable
+    {
+        private readonly KeyDerivationFunc func;
+        private readonly EncryptionScheme scheme;
+
+        public static PbeS2Parameters GetInstance(object obj)
+        {
+            if (obj == null)
+                return null;
+            PbeS2Parameters existing = obj as PbeS2Parameters;
+            if (existing != null)
+                return existing;
+            return new PbeS2Parameters(Asn1Sequence.GetInstance(obj));
+        }
+
+        public PbeS2Parameters(KeyDerivationFunc keyDevFunc, EncryptionScheme encScheme)
+        {
+            this.func = keyDevFunc;
+            this.scheme = encScheme;
+        }
+
+        private PbeS2Parameters(Asn1Sequence seq)
+        {
+            if (seq.Count != 2)
+                throw new ArgumentException("Wrong number of elements in sequence", "seq");
+
+            Asn1Sequence funcSeq = (Asn1Sequence)seq[0].ToAsn1Object();
+
+            // TODO Not sure if this special case is really necessary/appropriate
+            if (funcSeq[0].Equals(PkcsObjectIdentifiers.IdPbkdf2))
+            {
+                func = new KeyDerivationFunc(PkcsObjectIdentifiers.IdPbkdf2,
+                    Pbkdf2Params.GetInstance(funcSeq[1]));
+            }
+            else
+            {
+                func = new KeyDerivationFunc(funcSeq);
+            }
+
+            scheme = EncryptionScheme.GetInstance(seq[1].ToAsn1Object());
+        }
+
+        public KeyDerivationFunc KeyDerivationFunc
+        {
+            get { return func; }
+        }
+
+        public EncryptionScheme EncryptionScheme
+        {
+            get { return scheme; }
+        }
+
+        public override Asn1Object ToAsn1Object()
+        {
+            return new DerSequence(func, scheme);
+        }
+    }
+}
+#pragma warning restore
+#endif