Non-Invasive Challenge Response Authentication for Voice Transactions with Smart Home Behavior

Smart speakers, such as Alexa and Google Home, support daily activities in smart home environments. Even though voice commands enable friction-less interactions, existing financial transaction authorization mechanisms hinder usability. A non-invasive authorization by leveraging presence and light se...

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Main Authors: Victor Hayashi, Wilson Ruggiero
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/22/6563
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author Victor Hayashi
Wilson Ruggiero
author_facet Victor Hayashi
Wilson Ruggiero
author_sort Victor Hayashi
collection DOAJ
description Smart speakers, such as Alexa and Google Home, support daily activities in smart home environments. Even though voice commands enable friction-less interactions, existing financial transaction authorization mechanisms hinder usability. A non-invasive authorization by leveraging presence and light sensors’ data is proposed in order to replace invasive procedure through smartphone notification. The Coloured Petri Net model was created for synthetic data generation, and one month data were collected in test bed with real users. Random Forest machine learning models were used for smart home behavior information retrieval. The LSTM prediction model was evaluated while using test bed data, and an open dataset from CASAS. The proposed authorization mechanism is based on Physical Unclonable Function usage as a random number generator seed in a Challenge Response protocol. The simulations indicate that the proposed scheme with specialized autonomous device could halve the total response time for low value financial transactions triggered by voice, from 7.3 to 3.5 s in a non-invasive manner, maintaining authorization security.
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spelling doaj.art-2125115d866442c09df8082a3e4933812023-11-20T21:14:39ZengMDPI AGSensors1424-82202020-11-012022656310.3390/s20226563Non-Invasive Challenge Response Authentication for Voice Transactions with Smart Home BehaviorVictor Hayashi0Wilson Ruggiero1Polytechnic School, University of São Paulo, São Paulo 05508-010, BrazilPolytechnic School, University of São Paulo, São Paulo 05508-010, BrazilSmart speakers, such as Alexa and Google Home, support daily activities in smart home environments. Even though voice commands enable friction-less interactions, existing financial transaction authorization mechanisms hinder usability. A non-invasive authorization by leveraging presence and light sensors’ data is proposed in order to replace invasive procedure through smartphone notification. The Coloured Petri Net model was created for synthetic data generation, and one month data were collected in test bed with real users. Random Forest machine learning models were used for smart home behavior information retrieval. The LSTM prediction model was evaluated while using test bed data, and an open dataset from CASAS. The proposed authorization mechanism is based on Physical Unclonable Function usage as a random number generator seed in a Challenge Response protocol. The simulations indicate that the proposed scheme with specialized autonomous device could halve the total response time for low value financial transactions triggered by voice, from 7.3 to 3.5 s in a non-invasive manner, maintaining authorization security.https://www.mdpi.com/1424-8220/20/22/6563smart homemachine learningauthenticationsimulationtest bed
spellingShingle Victor Hayashi
Wilson Ruggiero
Non-Invasive Challenge Response Authentication for Voice Transactions with Smart Home Behavior
Sensors
smart home
machine learning
authentication
simulation
test bed
title Non-Invasive Challenge Response Authentication for Voice Transactions with Smart Home Behavior
title_full Non-Invasive Challenge Response Authentication for Voice Transactions with Smart Home Behavior
title_fullStr Non-Invasive Challenge Response Authentication for Voice Transactions with Smart Home Behavior
title_full_unstemmed Non-Invasive Challenge Response Authentication for Voice Transactions with Smart Home Behavior
title_short Non-Invasive Challenge Response Authentication for Voice Transactions with Smart Home Behavior
title_sort non invasive challenge response authentication for voice transactions with smart home behavior
topic smart home
machine learning
authentication
simulation
test bed
url https://www.mdpi.com/1424-8220/20/22/6563
work_keys_str_mv AT victorhayashi noninvasivechallengeresponseauthenticationforvoicetransactionswithsmarthomebehavior
AT wilsonruggiero noninvasivechallengeresponseauthenticationforvoicetransactionswithsmarthomebehavior