diff --git a/lib/sec.ex b/lib/sec.ex
index 6d144ef..20f530f 100644
--- a/lib/sec.ex
+++ b/lib/sec.ex
@@ -1,6 +1,5 @@
 defmodule CA.CRYPTO do
 
-
     def testCMSX509() do
         {_,base} = :file.read_file "priv/encrypted.txt"
         [_,s] = :string.split base, "\n\n" # S/MIME
@@ -50,11 +49,11 @@ defmodule CA.CRYPTO do
 
     def shared(pub, key, scheme), do: :crypto.compute_key(:ecdh, pub, key, scheme)
 
-    def testKDF() do
-        {maximK,key} = privat "maxim"
+    def test____() do
+        {maximK,_} = privat "maxim"
+        {maximP,_} = public "maxim"
         scheme = :prime256v1
-        kdf          = <<246, 12, 141, 164, 154, 173, 117, 144, 14, 3, 156, 213, 42, 25, 211, 160, 130,
-                         43, 51, 242, 75, 160, 175, 11, 167, 76, 177, 17, 211, 75, 146, 200>>
+        kdf          = <<72, 107, 155, 26, 72, 48, 84, 17, 196, 223, 216, 171, 80, 69, 237, 114, 43, 195, 185, 109, 228, 129, 171, 72, 73, 223, 122, 52, 129, 156, 101, 121>>
         unwrapped    = <<91, 14, 167, 227, 231, 214, 163, 73, 170, 246, 181, 226, 189, 201, 124, 243, 41,
                          106, 120, 60, 134, 166, 142, 197, 183, 120, 127, 214, 23, 232, 212, 134>>
         encryptedKey = <<10, 165, 23, 245, 67, 211, 61, 126, 224, 151, 243, 132, 154, 31, 124, 254, 125,
@@ -69,9 +68,22 @@ defmodule CA.CRYPTO do
         unwrap       = :aes_kw.unwrap(encryptedKey, sharedKey)
     end
 
+    def testKDF() do
+    end
+
+    def testUnwrap() do
+        kdf          = <<217, 187, 27, 152, 7, 7, 119, 110, 226, 226, 88, 211, 48, 219, 93, 90, 130, 76,
+                         194, 66, 49, 125, 14, 88, 130, 54, 175, 10, 251, 201, 59, 67>>
+        encryptedKey = <<153, 198, 198, 10, 57, 65, 242, 44, 238, 159, 74, 127, 47, 28, 195, 207, 104,
+                         237, 99, 111, 180, 187, 238, 154, 135, 218, 93, 103, 133, 48, 50, 24, 174,
+                         236, 118, 37, 235, 232, 143, 54>>
+        unwrap       = :aes_kw.unwrap(encryptedKey, kdf)
+    end
+
     def testDecode() do
-        data = <<166, 245, 116, 20, 75, 138, 18, 153, 192, 25, 85, 227, 145, 0, 179, 32, 21, 20, 219, 137, 54, 9, 34, 190, 159, 1, 108, 168, 64, 10, 128, 42>>
-        iv = <<188, 9, 9, 162, 138, 88, 113, 80, 1, 38, 17, 80, 198, 172, 209, 69>>
+        data   = <<166, 245, 116, 20, 75, 138, 18, 153, 192, 25, 85, 227, 145, 0, 179,
+                   32, 21, 20, 219, 137, 54, 9, 34, 190, 159, 1, 108, 168, 64, 10, 128, 42>>
+        iv     = <<188, 9, 9, 162, 138, 88, 113, 80, 1, 38, 17, 80, 198, 172, 209, 69>>
         unwrap = <<234, 54, 248, 92, 153, 222, 78, 126, 242, 118, 211, 164, 72, 164, 19, 75,
                    213, 214, 12, 239, 142, 196, 130, 222, 64, 91, 2, 208, 144, 112, 15, 92>>
         decryptCBC(data, unwrap, iv)