What are the key differences between classical and quantum cryptography?

What are the key differences between classical and quantum cryptography?

Classical cryptography relies on mathematical algorithms to secure data, while quantum cryptography uses the principles of quantum mechanics.

Can you explain how quantum key distribution works?

Sure! Quantum key distribution (QKD) allows two parties to generate a shared, secret random key using quantum mechanics, ensuring security against eavesdropping.

What are the advantages of quantum cryptography over classical methods?

Quantum cryptography offers enhanced security, as it can detect eavesdropping and is theoretically immune to computational attacks.

Are there any practical applications of quantum cryptography today?

Yes, quantum cryptography is being tested in secure communications, banking, and government applications, though it's still in early stages.

What challenges does quantum cryptography face?

Challenges include the need for specialized equipment, distance limitations, and the current lack of widespread infrastructure.