Secure Identification for the Internet of Things

This study addresses the problem of authentication of low-power devices
in the Internet of Things by introducing new functionalities:
groupmembership verification and identification. The procedure verifies if a given IoT device is a member of a group without revealing the identity of that member. Similarly, group membership identification states which group the device belongs to without knowing the identity. The protocol comprises two mechanisms: quantizing templates into discrete embeddings,making reconstruction difficult,and aggregating several templates into one group representation, impeding identification. Experiments show the trade-off between security/privacy and verification/identification performances.