Thwarting Dictionary Attacks Solution – Applied Cryptography

Thwarting Dictionary Attacks Solution – Applied Cryptography


[Evans] Now the answer is the third one– that it makes it about 4000 times harder. So to compute a dictionary that would be effective against all the different salts, the attacker really needs to pre-compute that dictionary for all the different salt values to be able to look for passwords that match. So salting adds a lot of value for very little cost. We just need some extra bits that don’t need to be kept secret that are stored in our password file.

Daniel Ostrander

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