What are the key differences between quantum and classical cryptography?

What are the key differences between quantum and classical cryptography?

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

Can you explain how quantum key distribution works?

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 using quantum cryptography?

The main advantages include enhanced security due to the laws of quantum physics, which prevent eavesdropping without detection.

Are there any practical applications of quantum cryptography today?

Yes, quantum cryptography is being used in secure communications, banking, and government data protection in some regions.

How does classical cryptography handle security threats?

Classical cryptography uses complex algorithms and key management practices to protect against threats, but it can be vulnerable to advances in computing.