论文标题
具有强大保密性的生物特征识别系统的基本限制
Fundamental Limits of Biometric Identification Systems with Strong Secrecy
论文作者
论文摘要
研究了在强烈的保密标准下生物识别系统的基本限制。在以前对这种情况的研究中，在只有一个用户的情况下，秘密，模板，隐私和保密性渗透的基本权衡已经揭示，而尚未讨论多个用户的情况。在这项研究中，我们考虑了许多用户的系统，并且在强大的保密性标准下，我们表征了速率元素（包括用户（识别）速率）的容量区域。在可实现的证明中，我们得出了一种新方法，通过为一个用户的情况扩展随机套筒来合并多个用户。所获得的结果表明，无论是秘密裂口而言，容量区域的表征不会改变弱或强保密标准。
The fundamental limits of biometric identification systems under a strong secrecy criterion are investigated. In the previous studies of this scenario, the fundamental trade-off among secrecy, template, privacy- and secrecy-leakages has been revealed in the case where there is only one user, while the case of multiple users has not been discussed yet. In this study, we consider the system with exponentially many users, and we characterize the capacity region of the rate tuples including the user (identification) rate under the strong secrecy criterion. In the achievability proof, we derive a new method to incorporate multiple users by extending the random binning for one user's case. The obtained result shows that the characterization of the capacity region does not vary regardless of the weak or strong secrecy criterion in terms of secrecy-leakage.
