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Data security is a major concern in digital age, which generally relies on algorithm‐based mathematical encryption. Recently, encryption techniques based on physical principles are emerging and being developed, leading to the new generation of encryption moving from mathematics to the intersection of mathematics and physics. Here, device‐level encryption with ideal security is ingeniously achieved...
Encryption
In article number 2306065, Kun Wang, Chaoxing Wu, Zhiqiang Liu, Tailiang Guo, Tae Whan Kim, and co‐workers present a device‐level encryption strategy by employing a 3D confined electron system in which multiple pulses act as carriers for transmitted digital information, providing an alternative encryption platform and method for converting digital signals to optical signals.