How does the emergence of quantum computing impact traditional data encryption methods?

The correct answer is A. Quantum computing may render classical encryption algorithms obsolete due to its ability to. Quantum algorithms, such as Shor's algorithm, can factor large prime numbers exponentially faster than classical computers, threatening the security of RSA and elliptic-curve cryptography. Similarly, Grover's algorithm reduces the effective strength of symmetric key algorithms by

Submitted by kwame.gh· Apr 18, 2026Protection of Information Assets

Question

Options

AQuantum computing may render classical encryption algorithms obsolete due to its ability to
BQuantum computing introduces new encryption techniques that are immune to decryption by
CQuantum computing enhances the security of classical encryption algorithms by providing faster
DQuantum computing will require more frequent training on the application of classical data

How the community answered

(57 responses)

A
88% (50)
B
4% (2)
C
7% (4)
D
2% (1)

Explanation

Quantum algorithms, such as Shor's algorithm, can factor large prime numbers exponentially faster than classical computers, threatening the security of RSA and elliptic-curve cryptography. Similarly, Grover's algorithm reduces the effective strength of symmetric key algorithms by half, requiring larger key sizes. While post-quantum cryptography is being developed, current algorithms may become obsolete once practical quantum computers exist. Options B, C, and D are incorrect because quantum does not inherently improve encryption, nor is training the key issue-it is the fundamental breakage of cryptographic assumptions.

Topics

#Quantum computing#Encryption#Cryptography#Information security threats

Community Discussion

No community discussion yet for this question.

Full CISA Practice