I am very very confused about encrypting form values when posting a form to submit payment.
Please don't turn off when I mention PayPal. I am genuinely confused.
I have to submit form values via an HTTPS connection to PayPal and PayPal have advised me to encrypt my form fields (This is where I'm confused).
From everything I've read I cannot encrypt the html
<input type="hidden" name="total" value="10.00"/>, so when someone clicks view source they can see the form values.
Can the form be hacked and the values be changed before the form is sent?
Please help me clear my head.....