What are "hashed and salted" passwords?


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Hashing is using an cryptographic algorithm to convert data like a password into a fixed length sting of characters called a fingerprint. 

Salting is a way to randomize hashes by adding a random string (which is called a salt) before a password is hashed, which makes it much more difficult to crack the password hash. 

This page explains it more thoroughly: http://crackstation.net/hashing-security.htm

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