Knowledge check

Password hashing & key derivation: PBKDF2, bcrypt, scrypt, Argon2

3 questions testing what you just read — no login, no tracking, just immediate feedback.

Question 1 of 3

Why is SHA-256 alone a poor choice for hashing passwords?

Question 2 of 3

What does salting a password specifically defend against?

Question 3 of 3

What makes Argon2 and scrypt more resistant to GPU/ASIC cracking than PBKDF2?

0 / 3 answered