It is a system to counter "adversarial wireless sensing" reconnaissance attacks.
> To prevent possible surveillance of the movement profile within one's home, researchers from the Max Planck Institute for Security and Privacy, the Horst Görtz Institute for IT Security at Ruhr-Universität Bochum and the Cologne University of Applied Sciences have developed a novel system ... based on the technology of intelligent reflective surfaces. Although cryptographic techniques are already in use to ensure data confidentiality, passive eavesdroppers ... [through] reflections from walls, objects and people present ... by applying simple statistical methods [can] conclude, for example, that a person is currently moving in the monitored room
> [In] Intelligent Reflecting Surfaces ..., many reflective elements are distributed over a surface and their reflective behavior can be individually and electronically adjusted. ... [D]ynamically manipulat[ing] the incident radio waves ... attackers can no longer read information about movements in the room from the signal. [... T]he solution works independently of the devices, radio waveforms, and standards used; it does not compromise the quality of the wireless link; and it achieves very high channel obfuscation
> To prevent possible surveillance of the movement profile within one's home, researchers from the Max Planck Institute for Security and Privacy, the Horst Görtz Institute for IT Security at Ruhr-Universität Bochum and the Cologne University of Applied Sciences have developed a novel system ... based on the technology of intelligent reflective surfaces. Although cryptographic techniques are already in use to ensure data confidentiality, passive eavesdroppers ... [through] reflections from walls, objects and people present ... by applying simple statistical methods [can] conclude, for example, that a person is currently moving in the monitored room
> [In] Intelligent Reflecting Surfaces ..., many reflective elements are distributed over a surface and their reflective behavior can be individually and electronically adjusted. ... [D]ynamically manipulat[ing] the incident radio waves ... attackers can no longer read information about movements in the room from the signal. [... T]he solution works independently of the devices, radio waveforms, and standards used; it does not compromise the quality of the wireless link; and it achieves very high channel obfuscation
Original conference proceedings: IRShield: A Countermeasure Against Adversarial Physical-Layer Wireless Sensing, https://www.computer.org/csdl/proceedings-article/sp/2022/13...