Quantum cryptography is a technology that uses quantum physics to secure the distribution of symmetric encryption keys. A more accurate name for it is quantum key distribution (QKD). It works by sending photons, which are “quantum particles” of light, across an optical link.
Furthermore, is quantum cryptography safe?
In contrast to the threat quantum computing poses to current public-key algorithms, most current symmetric cryptographic algorithms and hash functions are considered to be relatively secure against attacks by quantum computers.
Consequently, where has quantum cryptography been used?
Also, quantum cryptography has useful applications for governments and military as, historically, governments have kept military data secret for periods of over 60 years. There also has been proof that quantum key distribution can travel through a noisy channel over a long distance and be secure.
Who invented quantum cryptography?
Why is quantum cryptography Unbreakable?
Because QKD is rooted in the laws of physics, not mathematical computations like traditional encryption, the system is theoretically unbreakable. Despite its promise for ultra-secure transmissions of sensitive information, there are a number of misconceptions about QKD.