Silicon photonic physical unclonable function
Silicon photonic physical unclonable function
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DOI：
10.1364/oe.25.012710
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发表时间：
2017-05-29
期刊：
影响因子：
3.8
通讯作者：
Foster, Amy C.
中科院分区：
文献类型：
--
作者：
Grubel, Brian C.;Bosworth, Bryan T.;Foster, Amy C.
物理不可克隆功能（PUF）作为一个硬件源的私人信息，不能被复制，并在硬件完整性和信息安全的应用。在这里，我们展示了一个光子PUF的基础上的超快非线性光学相互作用在一个混乱的硅微腔。该装置探测与光谱编码的超短光脉冲，非线性相互作用的微腔。这种相互作用产生了高度复杂和不可预测的，但确定性的超快响应，可以作为腔体的独特“指纹”，并作为设备保持器的私人信息来源。实验上，我们从六个不同的光子PUF设计中提取17.1 kbit的二进制密钥，并证明了这些密钥的唯一性和可重复性。此外，我们通过实验测试了六个光子PUF的精确副本，并证明了它们由于不可避免的制造变化而不可克隆。(C)2017美国光学学会
Physical unclonable functions (PUFs) serve as a hardware source of private information that cannot be duplicated and have applications in hardware integrity and information security. Here we demonstrate a photonic PUF based on ultrafast nonlinear optical interactions in a chaotic silicon micro-cavity. The device is probed with a spectrally-encoded ultrashort optical pulse, which nonlinearly interacts with the micro-cavity. This interaction produces a highly complex and unpredictable, yet deterministic, ultrafast response that can serve as a unique "fingerprint" of the cavity and as a source of private information for the device's holder. Experimentally, we extract 17.1-kbit binary keys from six different photonic PUF designs and demonstrate the uniqueness and reproducibility of these keys. Furthermore, we experimentally test exact copies of the six photonic PUFs and demonstrate their unclonability due to unavoidable fabrication variations. (C) 2017 Optical Society of America