試題詳解

61. Quantum computing is a type of computation that harnesses the collective properties of quantum states. The existence of the quantum computer seriously affects current cryptographic primitives since there are some quantum algorithms that can break hardness assumptions. Which one of the following cryptographic primitives can still be used in the quantum era？
(A) RSA trapdoor permutation
(B) Diffie-Hellman key exchange protocol
(C) Digital Signature Algorithm
(D) SHA256