论文标题
安全可靠的密钥协议与物理不荡情的功能
Secure and Reliable Key Agreement with Physical Unclonable Functions
论文作者
论文摘要
比较了将秘密键与相关的物理识别剂输出结合到相关的秘密键中使用的不同变换。去相关效率是用于确定具有高度相关输出的转换的度量。标量量化器用于转换输出，以提取秘密键绑定的均匀分布的位序列。一组在去相关效率方面表现良好的变换应用于环振荡器（RO）输出，以提高提取的位序列的唯一性和可靠性，以减少有关密钥和RO输出的硬件区域和信息泄漏，并最大程度地提高秘密键长度。提出了低复杂性错误校正代码，以说明与现有方法相比，具有完美的保密性和更好的秘密和隐私性透明率的两个完整的密钥结合系统。还提供了参考硬件实现，以证明转换编码方法占据了一个小的硬件区域。
Different transforms used in binding a secret key to correlated physical-identifier outputs are compared. Decorrelation efficiency is the metric used to determine transforms that give highly-uncorrelated outputs. Scalar quantizers are applied to transform outputs to extract uniformly distributed bit sequences to which secret keys are bound. A set of transforms that perform well in terms of the decorrelation efficiency is applied to ring oscillator (RO) outputs to improve the uniqueness and reliability of extracted bit sequences, to reduce the hardware area and information leakage about the key and RO outputs, and to maximize the secret-key length. Low-complexity error-correction codes are proposed to illustrate two complete key-binding systems with perfect secrecy, and better secret-key and privacy-leakage rates than existing methods. A reference hardware implementation is also provided to demonstrate that the transform-coding approach occupies a small hardware area.
