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First demonstration of secure quantum network with untrusted quantum devices

First demonstration of secure quantum network with untrusted quantum devices
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Harald Weinfurter , Nature Communications , National Research Foundation , College Of Design , Centre For Quantum Technologies , National University Of Singapore , Department Of Electrical , National University , Assistant Professor Charles Lim , Professor Harald Weinfurter , Asst Prof Lim , Computer Engineering ,

Researchers bring attack-proof quantum communication two steps forward


2021 0708 NUS researchers bring attack-proof quantum communication two steps forward
Assistant Professor Charles Lim (back) and Dr Zhang Gong (front) with their team’s first-of-its-kind quantum power limiter device.
Quantum key distribution (QKD) is a method for secure communication that uses quantum mechanics to encrypt information. While the security of QKD is unbreakable in principle, if it is incorrectly implemented, vital information could still be stolen by attackers. These are known as side-channel attacks, where the attackers exploit weaknesses in the setup of the information system to eavesdrop on the exchange of secret keys.
Researchers from the National University of Singapore (NUS) have developed two methods, one theoretical and one experimental, to ensure that QKD communications cannot be attacked in this way. The first is an ultra-secure cryptography protocol that can be deployed in any communication network that needs long-term security. The second is ....

Valerio Scarani , Nature Communications , Centre For Quantum Technologies , National University Of Singapore , Department Of Physics , Department Of Electrical , Assistant Professor Charles Lim , National University , Computer Engineering , Quantum Technologies , Professor Valerio Scarani , Asst Prof , Prof Lim , இயற்கை தகவல்தொடர்புகள் , மையம் க்கு குவாண்டம் தொழில்நுட்பங்கள் , தேசிய பல்கலைக்கழகம் ஆஃப் சிங்கப்பூர் , துறை ஆஃப் இயற்பியல் , துறை ஆஃப் மின் , தேசிய பல்கலைக்கழகம் , கணினி பொறியியல் , குவாண்டம் தொழில்நுட்பங்கள் , உதவி ப்ரொஃப் , ப்ரொஃப் லிம் ,