RSA Exception {“Bad Length.\r\n”} Noi Matter What My Key Size Is

Question

I am getting the runtime error {\"Bad Length.\\r\\n\"} on the line:

return rsa.Encrypt(bytes, true);

This is in the function:

Answer 1

This is the same error I found when I tried the code of one or your other post.

Change this

byte[] fileBytes = Encoding.Default.GetBytes(xmlDoc.OuterXml);

to this

byte[] fileBytes = Encoding.Default.GetBytes(xmlDoc.ToString());

I would also suggest that you change your encoding from default to Encoding.ASCII or something more defined. It will be easier to convert it to a string to save and then back to a byte array to decrypt.