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Cybersecurity & Cryptography
Q89 / 100
What is lattice-based cryptography and why is it quantum-resistant?
Correct! Well done.
Incorrect.
The correct answer is B) Cryptographic schemes based on the hardness of lattice problems (Learning With Errors, Ring-LWE) which quantum computers cannot solve efficiently
B
Correct Answer
Cryptographic schemes based on the hardness of lattice problems (Learning With Errors, Ring-LWE) which quantum computers cannot solve efficiently
Explanation
CRYSTALS-Kyber/Dilithium are lattice-based. The Learning With Errors (LWE) problem is NP-hard under quantum computing models. No efficient quantum algorithm exists for LWE (unlike factoring/discrete log).
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89/100