Right now i wrote a simple decryption method to decrypt the wrapped key withoud PKCS#11 module and im getting byte array from there. Have no ide what to do with it next.
I am sorry that this topic is going little out of the NCyproki topic but i dont know anywhere else to ask these questions..

(Why the forum is showing my post as double post on the 1 and 2 page? :P)
 

The wrapped key is a RSA privatekey. When i look at the array from debugger then it starts with 0x30 0x82 0x02 ... So it should be ANS.1 DER format then.

Little more offtopic here. When i try now to load the key to the keystore with keytool I get error: DerInputStream.getLength(): lengthTag=111, too big. So i think i have to check my decryption method again and see if the problem is there.
Right now my simple decrypt method looks like this:

EDIT: Ok, it was a problem of mine decryption code.

        public static byte[] Decrypt(byte[] cipherData)
        {
            MemoryStream ms = new MemoryStream(cipherData);

            DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
            cryptoProvider.Key = bytes;
            cryptoProvider.Padding = PaddingMode.None;
            cryptoProvider.Mode = CipherMode.ECB;

            CryptoStream cs = new CryptoStream(ms, cryptoProvider.CreateDecryptor(), CryptoStreamMode.Read);
            StreamReader sr = new StreamReader(cs);
            byte[] decryptedTextBytes = new Byte[cipherData.Length];
            cs.Read(decryptedTextBytes, 0, cipherData.Length);
            cs.Close();
            ms.Close();

            return decryptedTextBytes;
        }