In the context of user authentication, what is a "salt" used for?
- Adding randomness to a password before hashing
- Encrypting user passwords
- Verifying the user's identity
- Generating secure tokens
In user authentication, a "salt" is used to add randomness to a password before hashing. This helps protect against common attacks like rainbow table attacks and ensures that even the same password will have different hash values due to the unique salt.
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