RoomKey: Extracting a Volatile Key with Information from the Local WiFi Environment Reconstructable Within a Designated Area

Philipp Jakubeit, Andreas Peter, Maarten van steen

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Abstract

We present a WiFi signal-based, volatile key extraction system called RoomKey. We derive a room’s key by creating a deterministic key from the ever-changing WiFi environment and investigating the extraction capabilities of a designated area. RoomKey uses wireless beacon frames as a component, which we combine with a strong random key to generate and reconstruct the same volatile key in the room. We provide an exemplary use case using RoomKeyas an authentication factor using the location-specific WiFi environment as an authentication claim. We identified and solved two problems in using location as an authentication factor: location being sensitive to privacy and the location of a user constantly changing. We mitigate privacy concerns by recognizing a particular location without the need to localize its precise geographical coordinates. To overcome the problem of location change, we restrict locations to work environments for laptop usage and allow a per-location-predetermined, designated area (e.g., a room). With the concept RoomKey, we demonstrate the potential of including environmental WiFi measurements for volatile key extraction and show the possibility of creating location-aware and privacy-preserving authentication systems for continuous authentication and adaptive security measures.

Original languageEnglish
Title of host publicationProceedings of the 10th International Conference on Information Systems Security and Privacy ICISSP 2024
EditorsGabriele Lenzini, Paolo Mori, Steven Furnell
PublisherSCITEPRESS
Pages558-569
Number of pages12
Volume1
ISBN (Print)9789897586835
DOIs
Publication statusPublished - 2024
Event10th International Conference on Information Systems Security and Privacy, ICISSP 2024 - Rome, Italy
Duration: 26 Feb 202428 Feb 2024
Conference number: 10

Conference

Conference10th International Conference on Information Systems Security and Privacy, ICISSP 2024
Abbreviated titleICISSP
Country/TerritoryItaly
CityRome
Period26/02/2428/02/24

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