What is quantum cryptography and how does it work?

What is quantum cryptography and how does it work?

Quantum cryptography is a method of secure communication that uses the principles of quantum mechanics. It allows two parties to exchange information securely, ensuring that any attempt at eavesdropping can be detected.

What makes quantum cryptography more secure than classical methods?

Quantum cryptography leverages the uncertainty principle of quantum mechanics. If an eavesdropper tries to intercept the quantum keys, the act of measuring them alters their state, alerting the communicating parties.

Can you explain the concept of quantum key distribution?

Sure! Quantum Key Distribution (QKD) is a technique used in quantum cryptography to securely share encryption keys. It ensures that any interception of the key can be detected, allowing the parties to discard compromised keys.

What are some real-world applications of quantum cryptography?

Real-world applications include secure communications for government and military, financial transactions, and protecting sensitive data in healthcare.