Another example to how good ideas come out at the same time!<p>We have just recently released the exact same feature. Not all JotForm users use it but the users who use this feature are really excited about it.
<a href="http:&#x2F;&#x2F;www.jotform.com&#x2F;encrypted-forms&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.jotform.com&#x2F;encrypted-forms&#x2F;</a><p>It is free upto 100 responses&#x2F;month.