The salt is used for the original encryption, after which the plaintext is thrown away, then when you need to compare what the user enters next time, you use th

The salt is used for the original encryption, after which the plaintext is thrown away, then when you need to compare what the user enters next time, you use the same salt with the password entered every time. http://en.wikipedia.org/wiki/Salt_%28cryptography%29 http://en.wikipedia.org/wiki/Salt_%28cryptography%29 Edit: On second thought, I might have misread the question, perhaps you're intending to store the unique salt for each user, although that seems impractical to me since it would have to be just as obtainable as the password database.