Publications

BibTex format

@inproceedings{Woszczyk:2021:10.1145/3469261.3469405,
author = {Woszczyk, D and Lee, A and Demetriou, S},
doi = {10.1145/3469261.3469405},
pages = {7--12},
publisher = {ACM},
title = {Open, sesame! Introducing access control to voice services},
url = {http://dx.doi.org/10.1145/3469261.3469405},
year = {2021}
}

Download

RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - Personal voice assistants (VAs) are shown to be vulnerable against record–and–replay, and other acoustic attacks which allow an adversary to gain unauthorized control of connected devices within a smart home. Existing defenses either lack detection and management capabilities or are too coarse-grained to enable flexible policies on par with other computing interfaces. In this work, we present Sesame, a lightweight framework for edge devices which is the first to enable fine-grained access control of smart-home voice commands. Sesame combines three components: Automatic SpeechRecognition, Natural Language Understanding (NLU) and a Policymodule. We implemented Sesame on Android devices and demonstrate that our system can enforce security policies for both Alexa and Google Home in real-time (362ms end-to-end inference time), with a lightweight (<25MB) NLU model which exhibits minimal accuracy loss compared to its non-compact equivalent.
AU  - Woszczyk,D
AU  - Lee,A
AU  - Demetriou,S
DO  - 10.1145/3469261.3469405
EP  - 12
PB  - ACM
PY  - 2021///
SP  - 7
TI  - Open, sesame! Introducing access control to voice services
UR  - http://dx.doi.org/10.1145/3469261.3469405
UR  - http://hdl.handle.net/10044/1/90127
ER  -

Download

DrSoterisDemetriou

Contact

Assistant

Location

Summary

Citation

BibTex format

RIS format (EndNote, RefMan)