What is Quantum Cryptography?

Everything you Need to Know About Quantum Cryptography | Karthikeyan Nagaraj

What is Quantum Cryptography?

Cryptography is the process of encrypting data, or converting plain text into scrambled text so that only someone who has the right “key” can read it. Quantum cryptography, by extension, simply uses the principles of quantum mechanics to encrypt data and transmit it in a way that cannot be hacked.

The definition sounds simple, the complexity lies in the principles of quantum mechanics behind quantum cryptography, such as:

• The particles that make up the universe are inherently uncertain and can simultaneously exist in more than one place or more than one state of being.
• Photons are generated randomly in one of two quantum states.
• You can’t measure a quantum property without changing or disturbing it.
• You can clone some quantum properties of a particle, but not the whole particle.

How Quantum Cryptography Works?

Quantum cryptography, or quantum key distribution (QKD), uses a series of photons (light particles) to transmit data from one location to another over a fiber optic cable. By comparing…