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Paper Abstract and Keywords
Presentation 2026-07-13 15:15
Enhancing Pair Authentication Using Hand Motion and Heart-Rate Data
Bashir Mohammad Abdul, Jie Jin, Masakatsu Nishigaki, Tetsushi Ohki (Shizuoka University) ISEC2026-26 SITE2026-22 BioX2026-49 HWS2026-22 ICSS2026-41 EMM2026-33
Abstract (in Japanese) (See Japanese page) 
(in English) The DAP protocol authenticates two users simultaneously by classifying synchronized hand-motion data from wear- able sensors as a single motion-based decision. This paper does not simply add heart-rate data to DAP. Instead, it reconstructs DAP-based pair authentication as a three-stage decision framework. It separately verifies heart-rate channel validity, coopera- tion quality between the two users, and consistency with the registered pair template. This paper is an intermediate technical report that evaluates this three-stage decomposition rather than presenting a completed authentication system. Two users wear Apple Watches and perform synchronized DAP gestures while acceleration, angular velocity, magnetic field, and heart-rate are recorded. Stage 1 checks the validity of the heart-rate channel as a limited liveness-support signal that flags missing, all-zero, or physiologically implausible heart-rate inputs. It does not claim to detect skilled imitators, insiders wearing the watch, or replay attacks that contain a plausible heart-rate trace. Stage 2 acts as a cooperation-quality gate that decides whether the two motion streams are sufficiently coordinated to be worth comparing with a registered template. Stage 3 verifies consistency with the registered pair template through distance-based similarity and is the primary stage at which targeted imitation and insider-assisted attacks are evaluated. Experiments involve 30 participants in 15 fixed pairs across genuine, targeted imitation, and insider-assisted sessions. Stage 1 separates valid from invalid heart-rate inputs by rule, Stage 2 reaches an AUC near 0.98 between genuine and mismatched motion streams, and Stage 3 reaches an Equal Error Rate of 11% against deliberate imitators under a leakage-free, pair-independent protocol. The contribution is the decomposition itself, not the heart-rate signal alone.
Keyword (in Japanese) (See Japanese page) 
(in English) Pair authentication / cooperative gesture / three-stage framework / wearable sensors / hand-motion biometrics / heart-rate channel validity / pair-template verification / cooperation quality assessment  
Reference Info. IEICE Tech. Rep., vol. 126, no. 109, BioX2026-49, pp. 98-104, July 2026.
Paper # BioX2026-49 
Date of Issue 2026-07-06 (ISEC, SITE, BioX, HWS, ICSS, EMM) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF ISEC2026-26 SITE2026-22 BioX2026-49 HWS2026-22 ICSS2026-41 EMM2026-33

Conference Information
Committee BioX HWS ISEC SITE ICSS EMM IPSJ-CSEC IPSJ-SPT 
Conference Date 2026-07-13 - 2026-07-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Sapporo Convention Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To BioX 
Conference Code 2026-07-BioX-HWS-ISEC-SITE-ICSS-EMM-CSEC-SPT-SEC 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Enhancing Pair Authentication Using Hand Motion and Heart-Rate Data 
Sub Title (in English)  
Keyword(1) Pair authentication  
Keyword(2) cooperative gesture  
Keyword(3) three-stage framework  
Keyword(4) wearable sensors  
Keyword(5) hand-motion biometrics  
Keyword(6) heart-rate channel validity  
Keyword(7) pair-template verification  
Keyword(8) cooperation quality assessment  
1st Author's Name Bashir Mohammad Abdul  
1st Author's Affiliation Shizuoka University (Shizuoka University)
2nd Author's Name Jie Jin  
2nd Author's Affiliation Shizuoka University (Shizuoka University)
3rd Author's Name Masakatsu Nishigaki  
3rd Author's Affiliation Shizuoka University (Shizuoka University)
4th Author's Name Tetsushi Ohki  
4th Author's Affiliation Shizuoka University (Shizuoka University)
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Speaker Author-1 
Date Time 2026-07-13 15:15:00 
Presentation Time 25 minutes 
Registration for BioX 
Paper # ISEC2026-26, SITE2026-22, BioX2026-49, HWS2026-22, ICSS2026-41, EMM2026-33 
Volume (vol) vol.126 
Number (no) no.107(ISEC), no.108(SITE), no.109(BioX), no.110(HWS), no.111(ICSS), no.112(EMM) 
Page pp.98-104 
#Pages 7 
Date of Issue 2026-07-06 (ISEC, SITE, BioX, HWS, ICSS, EMM) 

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