Controllable identifier measurements for private authentication with secret keys

Onur Günlü; Kittipong Kittichokechai; Rafael F. Schaefer; Giuseppe Caire

doi:10.1109/TIFS.2018.2806937

Controllable identifier measurements for private authentication with secret keys

Onur Günlü, Kittipong Kittichokechai, Rafael F. Schaefer, Giuseppe Caire

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	1945-1959
Number of pages	15
Journal	IEEE Transactions on Information Forensics and Security
Volume	13
Issue number	8
DOIs	https://doi.org/10.1109/TIFS.2018.2806937
State	Published - Aug 2018
Externally published	Yes

Keywords

Action dependent privacy
Hidden source
Information theoretic security
Private authentication

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10.1109/TIFS.2018.2806937

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title = "Controllable identifier measurements for private authentication with secret keys",

abstract = "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.",

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AU - Schaefer, Rafael F.

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AB - 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.

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Controllable identifier measurements for private authentication with secret keys

Abstract

Keywords

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