Controllable Identifier Measurements for Private Authentication With Secret Keys
Controllable Identifier Measurements for Private Authentication With Secret Keys
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DOI：
10.1109/tifs.2018.2806937
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发表时间：
2018-08-01
影响因子：
6.8
通讯作者：
Caire, Giuseppe
中科院分区：
文献类型：
--
作者：
Guenlue, Onur;Kittichokechai, Kittipong;Caire, Giuseppe
研究了源序列隐私约束下的基于密钥的认证问题。假设认证期间的标识符测量是通过成本受限的“动作”序列可控的。对于有噪声或无噪声的信源测量用于生成或嵌入密钥的四个问题，给出了密钥速率、存储速率、隐私泄漏率和操作代价之间的最优折衷的单字母特征。这些结果与多个用户身份验证场景相关，包括使用多个测量进行的物理和生物特征身份验证。作为特例，我们的结果包括秘密密钥生成和嵌入依赖于动作的边信息的新结果，而不需要对登记的源序列进行任何隐私约束。
The problem of secret-key based authentication under a privacy constraint on the source sequence is considered. The identifier measurements during authentication are assumed to be controllable via a cost-constrained "action" sequence. Single-letter characterizations of the optimal trade-off among the secret-key rate, storage rate, privacy-leakage rate, and action cost are given for the four problems where noisy or noiseless measurements of the source are enrolled to generate or embed secret keys. The results are relevant for several user-authentication scenarios, including physical and biometric authentications with multiple measurements. Our results include, as special cases, new results for secret-key generation and embedding with action-dependent side information without any privacy constraint on the enrolled source sequence.