note 42831 deleted from function.md5 by tomsommer

Note Submitter: echorunner@hotmail.com ---- Just a thought on having MD5 hashes which can expire: I read somewhere to create a hash that expires at 12AM daily is to add the current date to the clear-text and then hash it. Another method (although the nature of its security is unknown) is to actually create a cookie (setcookie) with an expiry date (10 minutes) containing a random string (uniqid) and then hash BOTH the random string and date together with the clear-text. //this sets the cookie, bear in mind - the page requires a refresh before the cookie becomes visible to the script $MD5EXPIRYID=uniqid("MD5"); setcookie("MD5EXPIRY",$MD5EXPIRYID, time()+600); Next when you generate the hash, add $MD5EXPIRYID to the hash along with the date: //creates the hash $hash=md5($cleartext.mktime("Y m d").$MD5EXPIRYID); This should create a hash that expires in 10 minutes or at 12AM on the same day, whichever comes first.