note 121918 added to function.md5

Note: Before you get some idea like using md5 with password as way to prevent others tampering with message, read pages "Length extension attack" and "Hash-based message authentication code" on wikipedia. In short, naive constructions can be dangerously insecure. Use hash_hmac if available or reimplement HMAC properly without shortcuts. ---- Server IP: 208.43.231.9 Probable Submitter: 94.112.145.164 ---- Manual Page -- http://php.net/manual/en/function.md5.php Edit -- https://master.php.net/note/edit/121918 Del: integrated -- https://master.php.net/note/delete/121918/integrated Del: useless -- https://master.php.net/note/delete/121918/useless Del: bad code -- https://master.php.net/note/delete/121918/bad+code Del: spam -- https://master.php.net/note/delete/121918/spam Del: non-english -- https://master.php.net/note/delete/121918/non-english Del: in docs -- https://master.php.net/note/delete/121918/in+docs Del: other reasons-- https://master.php.net/note/delete/121918 Reject -- https://master.php.net/note/reject/121918 Search -- https://master.php.net/manage/user-notes.php