Hide-and-Disclose: On-Site Information Sharing for Privacy-Aware Mobile IoT Communications
Yusuke Fukushima, Ved P. Kafle · 2019
In this demonstration, we present a privacy-aware device-to-device communication framework that enables both obfuscation of information source and fine-grade information disclosure control (which we call the Hide-and-Disclose). Instead of using persistently assigned identifiers, introducing randomly generated short-lived identifiers (also known as pseudo-IDs) becomes a popular approach for reducing leakage of sender's location privacy information. To achieve reliable information sharing among mobile IoT devices using pseudo-IDs, issuing pseudo-IDs and information provisioning must be supported by the reliable network service. However, data access by using pseudo-IDs significantly increases database management cost due to the increase in query index size, and frequent invalidation and replication of pseudo-IDs and data associated by the pseudo-IDs. To overcome this problem, Hide-and-Disclosure allows to integrate database operations based on grouping of pseudo-ID and associated data pairs owned by the same IoT device. To further provide fine-grade access control, this framework accepts IoT devices to add rules for data access (i.e., access permission and lifetime) so that IoT devices can disclose own information to the target device. To evaluate the framework, we have implemented the prototype in Linux system.