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Researchers at Ecole Polytechnique Fédérale de Lausanne have combined silver nanostructures with polarised light to yield a range of brilliant colours, which can be used to encode messages. The polarisations are used as keys and the message is encrypted in a quaternary colour subset. https://onlinelibrary.wiley.com/doi/10.1002/adom.202202165 https://www.sciencedaily.com/releases/2023/02/230213120701.htm

Lightweight Authenticated Encryption & Hashing Ascon is a family of authenticated encryption and hashing algorithms designed to be lightweight and easy to implement, even with added countermeasures against side-channel attacks. Ascon has been selected as new standard for lightweight cryptography in the NIST Lightweight Cryptography competition (2019–2023). Ascon has also been selected as the primary choice for lightweight authenticated encryption in the final portfolio of the CAESAR competition (2014–2019). ascon.iaik.tugraz.at www.bleepingcomputer.com/news/security/us-nist-unveils-winning-encryption-algorithm-for-iot-data-protection/

Security researcher Paul Moore discovered the Eufy Doorbell Dual camera’s feed could be accessed via a web browser by simply knowing the right URL, and no password was required. Moore said camera videos encrypted with AES-128 are using a simple key that can be broken with relative ease, and the app was uploading thumbnails to the cloud, before sending them to people’s mobile apps as notifications, the camera was uploading facial recognition data to its AWS cloud without encryption. In a blog post Eufy (owned by Anker) addressed these claims, confirming some of them, but denying others. www.techradar.com/news/anker-admits-eufy-camera-security-issues community.security.eufy.com/t/to-our-eufy-security-customers-and-partners/3568215