I do similar things with just stuffing data in a hidden field for long stuff like that. I don't see any reason to bother trying to encrypt it; if the user wants to put crap data in, they could already have done that in the first place. Just have to validate it on submission.
Or, if you really do want to encrypt it, you don't need any special CGI-ish thing for that. Just AES/Serpent/etc the serialized string (whatever format it may be in) and dump that in the form field. Gen up a new key for each session, and just use that for all their forms, should be plenty secure enough.
An additional option would be to instead of storing in the DB just for the session, create a new little opaque key for each run through a form (a sha256(time()) type construction would be fine; just bitstirred pseudorandomness) and use that and the session for storing it. That way you could have multiple stored saved bits per session, and you just need to stick that key in a hidden field in the form.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||