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Compound Biometric Authentication Systems with Strong Secrecy

机译:复合生物识别认证系统具有强大的保密

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In classical biometric authentication systems, the authenticity of each user is determined by comparing two secret-keys which are generated based on the user's biometric enrollment and authentication sequences. These sequences are generated based on the correlated components of a common source whose statistics are assumed to be known. In the compound biometric authentication model in contrast, the statistics of the source are unknown. In this case, the protocol should guarantee the security and reliability of authentication procedure, simultaneously for all realizations of the compound source. In compound biometric authentication setups which have been investigated until now, only the weak secrecy criterion has been guaranteed. In this work, a single-letter secret-key rate versus privacy leakage rate capacity region of the compound biometric authentication system is given for the case where strong secrecy is also guaranteed. It is shown that the capacity regions under both strong and weak secrecy conditions are equivalent.
机译:在经典的生物识别认证系统中,通过比较基于用户的生物识别和认证序列生成的两个秘密密钥来确定每个用户的真实性。基于假设统计所知的公共源的相关组件生成这些序列。在复合生物识别验证模型相比之下,源的统计数据未知。在这种情况下,协议应保证认证过程的安全性和可靠性,同时用于复合源的所有实现。在已经研究的复合生物识别身份验证设置中,只有保证了弱秘密标准。在这项工作中,给出了复合生物识别认证系统的单字母秘密钥匙率与隐私泄漏率容量区域,以便还保证了强秘密的情况。结果表明,强度和弱秘密条件下的容量区域是等同的。

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