GK Question

technology medium true_false

Quantum cryptography (QKD) provides theoretically unbreakable encryption based on quantum physics principles.

  1. True
  2. False

Answer: True

QKD (Quantum Key Distribution) uses quantum properties (no-cloning theorem, measurement disturbance) to detect eavesdropping during key exchange. If intercepted, quantum states change, alerting parties. Provides information-theoretic security, unlike computational security of RSA/ECC. Deployed in limited networks; scaling challenges remain.

Topic Quantum Computing
Exam Relevance Banking, UPSC, SSC
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