Quantum cryptography is a field of study that deals with the use of quantum mechanics to secure communication. It is based on the principles of quantum mechanics, which allow for the creation of unbreakable codes. Quantum cryptography has the potential to revolutionize the way we communicate and secure our data. However, it is still in its early stages, and there are many challenges that need to be overcome before it can be widely adopted.
One of the challenges of quantum cryptography is the need for highly specialized hardware. Quantum cryptography requires the use of quantum computers, which are still in the experimental stage.