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Why is it important to use a salt when storing passwords in Flask applications?

easy📝 Conceptual Q1 of 15
Flask - Security Best Practices
Why is it important to use a salt when storing passwords in Flask applications?
ATo make passwords shorter and easier to store
BTo speed up the hashing process
CTo add random data to passwords, preventing rainbow table attacks
DTo convert passwords into plain text for easy retrieval
Step-by-Step Solution
Solution:

  1. Step 1: Understand what a salt does in password hashing

    A salt adds unique random data to each password before hashing, making identical passwords hash differently.

  2. Step 2: Recognize the security benefit of salting

    This prevents attackers from using precomputed tables (rainbow tables) to reverse hashes easily.

  3. Final Answer:

    To add random data to passwords, preventing rainbow table attacks -> Option C

  4. Quick Check:

    Salting = Prevent rainbow table attacks [OK]
Quick Trick: Always salt passwords to stop precomputed hash attacks [OK]
Common Mistakes:
MISTAKES
  • Thinking salt makes passwords shorter
  • Believing salt speeds up hashing
  • Assuming salt reveals plain text passwords

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