is it possible to encrypt the pass thru url?

i am passing data thru the URL upon submission. is there a way to do some basic encryption of that URL so that a customer can't just change the values in the URL and say our form calculated a different price?

This is possible to accomplish with JotForm, please check this guide: http://www.jotform.com/help/344-What-are-Encrypted-Forms-and-how-to-use-them-as-expert

Let us know if you need anything else, we will be glad to assist you.