an MD5 hash is a one-way encryption, you cant reverse an MD5 hash to reveal what creates it. The quickest way to decrypt an MD5 hash is if someone calculates an

an MD5 hash is a one-way encryption, you cant reverse an MD5 hash to reveal what creates it. The quickest way to decrypt an MD5 hash is if someone calculates and stores all the possible combinations and then you look up to find them (known as rainbow tables), otherwise you just have to use brute force. Even so, the returned value could be different again, as there is only so many combinations that md5 can make (although for something as long as a password or email address, thats highly unlikely). md5decrypter would just be a big database of tested strings and their MD5 hash,