312-50V13 · Question #287
Ethical Hacker jane Doe is attempting to crack the password of the head of the it department of ABC company. She Is utilizing a rainbow table and notices upon entering a password that extra…
The correct answer is B. Password salting. Password Salting Explanation Option B is correct because password salting is the technique of adding random extra characters (the "salt") to a password before hashing it, which makes rainbow table attacks ineffective since the precomputed hash values in a rainbow table won't…
Question
Options
- APassword key hashing
- BPassword salting
- CPassword hashing
- DAccount lockout
How the community answered
(54 responses)- A7% (4)
- B87% (47)
- C4% (2)
- D2% (1)
Explanation
Password Salting Explanation
Option B is correct because password salting is the technique of adding random extra characters (the "salt") to a password before hashing it, which makes rainbow table attacks ineffective since the precomputed hash values in a rainbow table won't match the salted hash stored in the system.
Why the distractors are wrong:
- A (Password key hashing) is not a standard security term/countermeasure and does not describe the process of adding extra characters to a password
- C (Password hashing) alone simply converts a password to a fixed-length string, but without added characters, rainbow tables can still crack common hashed passwords since the hashes are precomputed
- D (Account lockout) is a brute-force countermeasure that locks an account after failed attempts - it has no relevance to rainbow tables, which work offline against stolen password databases
Memory Tip
Think of "salting your food" - just as adding salt changes the flavor of a dish in a unique way, adding a salt value changes the hash of a password uniquely, making it unrecognizable to a rainbow table. Extra characters added = Salt!
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