note 66235 deleted from function.md5 by joey

From: Date: Sun, 17 Jul 2011 08:41:34 +0000
Subject: note 66235 deleted from function.md5 by joey
References: 1  Groups: php.notes 
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Note Submitter: coryostrudel at godcomplex dot com ---- If you are storing your passwords with and MD5 hash and are worried about collisions, an approach I have used was to store two passwords for the user. credentials ---------- userName password passwordChk Where: $input - users input password $key - a site based key stored out of public folders password = MD5($key.strrev($input)) passwordChk = MD5($input{0}.substr($input,(floor(strlen($input))/2),strlen)) This will stored the users password in the database as an MD5 hash of the string reversed plus a site based key stored out of public folders. It also stores a check value to check that the input is the true input and not a colliding value. The check takes the first character appends a substring of the input taking the last half of the input string and creates and MD5. I think this is pretty secure. It takes a modified salt & pepper approach, and follows up with a check on the original input to make sure it is not a colliding value, while also not storing the original password in plain text.

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