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Which cryptographic methods are most threatened by quantum computers?

easy🧠 Conceptual Q11 of 15
Cybersecurity - Emerging Security Topics
Which cryptographic methods are most threatened by quantum computers?
ARSA and ECC
BAES with 256-bit keys
CSHA-256 hashing
DSymmetric key algorithms in general
Step-by-Step Solution
Solution:

  1. Step 1: Understand quantum impact on cryptography

    Quantum computers can solve certain math problems, like factoring large numbers, much faster than classical computers.

  2. Step 2: Identify vulnerable cryptographic methods

    RSA and ECC rely on hard math problems (factoring and discrete logs) that quantum computers can solve efficiently, making them vulnerable.

  3. Final Answer:

    RSA and ECC -> Option A

  4. Quick Check:

    Quantum computers threaten RSA and ECC [OK]
Quick Trick: Remember: RSA and ECC use math quantum can break fast [OK]
Common Mistakes:
MISTAKES
  • Thinking AES is equally vulnerable as RSA
  • Confusing hashing algorithms with encryption
  • Assuming all symmetric algorithms are unsafe

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