Unable to pass encrypted text to .net web service

Question

I'm working on a web service based system which has a Client who encrypts a text using DES algorithm.

When my client sends the encrypted text to a web method on the web service, I catch a

ProtocolException exception saying The remote server returned an unexpected response: (400) Bad Request.

Text before encryption : "Hello"
Text after encryption : "I%�l�*�"

What should I do to solve the issue?

Answer 1

Exception occurred due to special characters in string which is not supported. You can make change in service to accept stream in place of string.

Server side code :

Boolean GetData(Stream fStream)
{
    try 
    {           
    // Read the stream into a byte array

    Byte[] data  = new Byte[32767];
    using (MemoryStream ms = new MemoryStream())
    {
            while(true)
            {
                    Int32 read = stream.Read(data, 0, data.Length);
                    if(read <= 0)
                        return ms.ToArray();
                    ms.Write(data, 0, read);
            }
    }

    // Copy to a string for header parsing
    String content = Encoding.UTF8.GetString(data);

    // do something
    }
    catch (Exception ex)
    {
    throw(ex);
    }
}