Private Authentication with Physical Identifiers Through Broadcast Channel Measurements

Onur Günlü; Rafael F. Schaefer; Gerhard Kramer

doi:10.1109/itw44776.2019.8989327

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arXiv · 1907.01081

Private Authentication with Physical Identifiers Through Broadcast Channel Measurements

Onur Günlü·Rafael F. Schaefer·Gerhard Kramer

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Abstract

A basic model for key agreement with biometric or physical identifiers is extended to include measurements of a hidden source through a general broadcast channel (BC). An inner bound for strong secrecy, maximum key rate, and minimum privacy-leakage and database-storage rates is proposed. The inner bound is shown to be tight for physically-degraded and less-noisy BCs.

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Onur Günlü, Rafael F. Schaefer, Gerhard Kramer. 2019-07-01. Private Authentication with Physical Identifiers Through Broadcast Channel Measurements. https://doi.org/10.1109/itw44776.2019.8989327

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