Code Constructions for Physical Unclonable Functions and Biometric Secrecy Systems
Code Constructions for Physical Unclonable Functions and Biometric Secrecy Systems
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DOI：
10.1109/tifs.2019.2911155
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发表时间：
2019-11-01
影响因子：
6.8
通讯作者：
Kramer, Gerhard
中科院分区：
文献类型：
--
作者：
Gunlu, Onur;Iscan, Onurcan;Kramer, Gerhard
考虑了具有生物特征或物理标识的两终端密钥协商问题。提出了两种基于Wyner-Ziv编码的线性码构造方法。第一种构造使用随机线性码，并实现了生成秘密和选择秘密模型的密钥泄漏存储区域的所有点。第二种构造使用嵌套极化码用于注册期间的矢量量化和重建期间的纠错。仿真结果表明，嵌套极化码实现了隐私泄漏和存储率，改善了现有的代码设计。一个提出的代码实现了现有方法无法实现的速率元组。
The two-terminal key agreement problem with biometric or physical identifiers is considered. Two linear code constructions based on Wyner-Ziv coding are developed. The first construction uses random linear codes and achieves all points of the key-leakage-storage regions of the generated-secret and chosen-secret models. The second construction uses nested polar codes for vector quantization during enrollment and for error correction during reconstruction. The simulation results show that the nested polar codes achieve privacy leakage and storage rates that improve on existing code designs. One proposed code achieves a rate tuple that cannot be achieved by existing methods.