Ganu, Are you simply looking to use the md5 string for authentication? If so you don't need to retrieve the decrypted version, simply encrypt what the user submits and compare the two md5 strings. Aaron On 12/15/05, Chris Shiflett <shiflett@xxxxxxx> wrote: > > ganu wrote: > > I want a function like md5() by which I can encrypt a code and > > again when I need from db i can dcrypt also. > > > > but in md5() this func. is not there. I can not go in reverse > > way. > > If a simple PHP function could encrypt and decrypt data with no > arguments other than the string, anyone could decrypt your data. In > other words, it can't be as simple as md5(). > > You might find the code samples at the bottom of this page helpful: > > http://phpsecurity.org/code > > They primarily cover using mcrypt. There's also an article by Robert > Peake that's pretty good: > > http://www.phpmag.net/itr/online_artikel/psecom,id,667,nodeid,114.html > > Hope that helps. > > Chris > > -- > Chris Shiflett > Brain Bulb, The PHP Consultancy > http://brainbulb.com/ > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >
