KaFHCa：通过跳频碰撞建立密钥
KaFHCa: Key-establishment via Frequency Hopping Collisions
摘要：
家庭自动化、工业和军事场景所使用的物联网设备的大规模部署需要通过创新解决方案来实现高安全性和隐私标准。本文提出了KaFHCa，一个密码少的协议，产生共享的秘密密钥相结合的随机跳频冲突和源的不可逆性独立的无线电信道状态。虽然其他解决方案将秘密比特率生成绑定到当前无线电信道条件，从而在静态环境中变得不切实际，但KaFHCa保证几乎相同的秘密比特率，而与信道条件无关。KaFHCa通过无线电频谱中发送器和接收器的随机碰撞来生成共享秘密，并利用衰落现象来实现源不可否认性，从而防止未经授权的窃听者推断密钥。所提出的解决方案是（几乎）独立的对手的位置，在信道衰落（σ = 8dB）的保守假设下工作，并能够产生一个秘密密钥的128位与少于564次的传输。
英文摘要：
The massive deployment of IoT devices being utilized by home automation, industrial and military scenarios demands for high security and privacy standards to be achieved through innovative solutions. This paper proposes KaFHCa, a crypto-less protocol that generates shared secret keys by combining random frequency hopping collisions and source indistinguishability independently of the radio channel status. While other solutions tie the secret bit rate generation to the current radio channel conditions, thus becoming unpractical in static environments, KaFHCa guarantees almost the same secret bitrate independently of the channel conditions. KaFHCa generates shared secrets through random collisions of the transmitter and the receiver in the radio spectrum, and leverages on the fading phenomena to achieve source indistinguishability, thus preventing unauthorized eavesdroppers from inferring the key. The proposed solution is (almost) independent of the adversary position, works under the conservative assumption of channel fading (σ = 8dB), and is capable of generating a secret key of 128 bits with less than 564 transmissions.
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。
