(Techopedia) Quantum technologies pose a classic cat vs. mouse quandry for the cyberseurity community. When quantum computers will start to see the light, quantum hacking will become a serious threat since it will be able to defeat all current encryption schemes.
To staunch the risk of quantum hacking, someone thought about developing quantum cryptography. Lo and behold, here it comes post-quantum cryptography, also known as quantum encryption.
Quantum key distribution (QKD) currently is the most promising method to create completely secured encryption keys by sending subatomic particles through a fiberoptic line. China is particularly ahead with this technology, and may have found a way to address some of the current limitations of QKD.
QKD still require the use of relays and repeaters, as well as routers and hubs when messages travel long distances. All of them represent a potentially weak point that hackers could use to break into the network and steal the encryption code.
hacking cat may catch the cybersecurity mouse once again. As it always happens in the cybersecurity landscape, once a technology to secure data is discovered, hackers will find a technology to break it again. So here you go: let me present you injection locking, a laser technique to go “pew-pew” on quantum cryptography.
quantum communication can be attacked by changing the frequency of a laser. Photons with a different seed frequency are injected into the cavity so that the laser can resonate with it, effectively altering the output frequency.
Will the cat eventually catch the mouse, or is the rodent going to escape the feline’s claw forever (just like in a Tom & Jerry cartoon?)