Storing Passwords Using Salted Hashes

Salts

Since an attacker can download a table mapping hashes back to regular words, what if you just add a little extra text to every password? So, to store hashes of 'MyCoolSite'+password, an attacker needs a unique mapping table just for MyCoolSite. Better still, if every password has a unique bit of text, an attacker needs a new table for every password. That bit of text is called a salt.

Another benefit of salts is ...