Encrypted Form Key

You can refer to these guides, you will find further help about encrypted forms.

http://www.jotform.com/blog/162-Introducing-Encrypted-Forms-The-Ultimate-in-Online-Form-Security

http://www.jotform.com/help/344-What-are-Encrypted-Forms-and-how-to-use-them-as-expert

Feel free to contact us if you need more help.