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 cryptography works?

Quantum cryptography uses quantum bits (qubits) to create secure communication channels. It leverages phenomena like superposition and entanglement.

What are the advantages of quantum cryptography over classical methods?

Quantum cryptography offers enhanced security through the no-cloning theorem and the ability to detect eavesdropping.

Are there any practical applications of quantum cryptography today?

Yes, quantum cryptography is being tested in secure communication networks and is used in some banking and government applications.

What challenges does quantum cryptography face?

Challenges include the need for specialized equipment, limited range, and the current lack of widespread infrastructure.