Need application that ake MD5 value ex. “81dc9bdb52d04dc20036dbd8313ed055” (the MD5 for the string “1234”) and check all combinations of four-digit “PIN” numbers to see if any of those PINs produce the given hash.

You will present the user with a form where they can enter an MD5 string and request that you reverse-hash the string. If you can reverse hash the string, print out the PIN: “PIN: 1234”. If the string does not reverse hash to a four digit number simply put out a message like: “Not found”

You must check all four-digit combinations. You must have the value as a string not as an integer – $check = hash(‘md5’, ‘1234’); // Correct – hashing a string

You should also print out the first 15 attempts to reverse-hash including both the MD5 value and PIN that you were testing. You should also print out the elapsed time for your computation as shown in the sample application.

Name the form field where you pass the MD5 into your application “md5″: <input type=”text” name=”md5″ size=”40″>

Use the GET method on your form (i.e. not POST)

Obs – Only need to really modify the file index.php. see md.zip in this post
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