LightGuard：通过物理层LiFi密钥启动实现透明WiFi安全
LightGuard: Transparent WiFi Security via Physical-Layer LiFi Key Bootstrapping
AI总结：
LightGuard利用LiFi的物理限制替代WiFi，通过双链架构将密钥建立转移至LiFi通道，避免RF信号泄露风险，实验验证了其有效性。
摘要：
WiFi固有易受窃听攻击，因其RF信号可穿透多物理边界。LiFi作为一种光方法，受限于视距且被不透明表面阻挡。我们提出LightGuard，基于此洞察构建双链架构：将加密密钥建立从WiFi转移到物理受限的LiFi通道以降低RF上密钥暴露的风险。LightGuard通过LiFi链路生成会话密钥并安装到WiFi接口，确保加密材料 never traverses the open RF medium。使用商用WiFi NICs和我们的LiFi收发器前端的原型验证了设计。
英文摘要：
WiFi is inherently vulnerable to eavesdropping because RF signals may penetrate many physical boundaries, such as walls and floors. LiFi, by contrast, is an optical method confined to line-of-sight and blocked by opaque surfaces. We present LightGuard, a dual-link architecture built on this insight: cryptographic key establishment can be offloaded from WiFi to a physically confined LiFi channel to mitigate the risk of key exposure over RF. LightGuard derives session keys over a LiFi link and installs them on the WiFi interface, ensuring cryptographic material never traverses the open RF medium. A prototype with off-the-shelf WiFi NICs and our LiFi transceiver frontend validates the design.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
