Hello,

I am currently working on converting a method we have written using Classic ASP into a C# .Net DLL and I've come across a stumbling block. 

What we have is an encrypted string stored in a registry setting that we retrieve and decrypt using a HexToBinary function.  I have managed to duplicate the Hex string that is created by the ASP code via C# using a modified HexToBinary function and receive a variant byte array back when I call FromString method of the XceedEncryption class:

<code>

public static object HexToBinary(string strHexValue, XceedEncryption xDecrypter)

int i = 0;

long lngVal;

string tmpHexValue = "";

string strBinaryValue = "";

object varBinaryValue = new object();

StringBuilder sb = new StringBuilder();

try

while (i < strHexValue.Length)

lngVal = long.Parse(tmpHexValue, NumberStyles.AllowHexSpecifier);

sb.Append(Convert.ToChar(lngVal).ToString());

catch (Exception ex)

MessageBox.Show(ex.Message);

return varBinaryValue;

From the ASP code I saw that the result of the call to the Decrypt method is simply cast to a string and there you get your resulting decrypted string.  This won't work in C#, at least I can't get it to so I just have the byte array:

varDataDecypted = (byte[])xDecrypter.Decrypt(ref varDataToDecrypt, true);

</code>

I am getting a variant byte array back from the Decrypt method in C# so it looks like it good until I need to return the actual decrypted string.  I'm just not sure how to get the resulting string from the byte array.  I'm not all that great with C# yet (if you can't tell) so I apologize for any sloppy code.

Thanks in advance,

Tony

Thanks for the reply Mohamed.

It returned part of the string I was looking for but most of it was just garbled, like special character boxes.  I must have not set things up right.