Salted Password Hashing - Doing it Right

※ Download: Crack md5 salt

If a bad guy got a user's hash they could use it to authenticate to the server, without knowing the user's password! The string that takes the longest will be the one whose hash's first byte matches the real hash's first byte.

A dictionary attack uses a file containing words, phrases, common passwords, and other strings that are likely to be used as a password. This isn't to say that you shouldn't hash in the browser, but if you do, you absolutely have to hash on the server too. This was necessary so that user-privileged software tools could find user names and other information.

Salted Password Hashing - Doing it Right - See all other answers here about how and why it's not reversible and why you wouldn't want to anyway.

Group x3 cracking joomla hash (md5+salt) password
These tables store a mapping between the hash of a password, and the correct password for that hash. Many systems generate a new, random password and email that to them, forcing them to change it on first login. Attackers will be able to modify the tokens, so don't store the user account information or timeout information in them. You can heat up bread and get toast, but you can't cool down toast to get bread. The salt also needs to be long, so that there are many possible salts.