Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2023-10-12 15:05
Speeding up the nearest-vector algorithm for triangular lattices
Kenta Takahashi, Wataru Nakamura (Hitachi) BioX2023-59
Abstract (in Japanese) (See Japanese page) 
(in English) Fuzzy Extractor (FE) and Fuzzy Signature (FS) are useful schemes to generate cryptographic keys from fuzzy data such as biometric feature. To implement FE and FS for fuzzy data in a Euclidean space, such as facial feature vectors, several techniques have been proposed that use lattice-based error correction. In these techniques, it is necessary to find the closest vector in the lattice for a given fuzzy data, but the closest vector problem (CVP) in a general lattice is known to be NP-hard . Therefore, it is necessary to use a special lattice where a fast CVP algorithm can be constructed. In this paper, we propose a faster algorithm for CVP in triangular lattices with O(n log⁡ n)-time, compared to the conventional algorithm with O(n^2)-time.
Keyword (in Japanese) (See Japanese page) 
(in English) Triangular Lattice / Closest Vector Problem / Fuzzy Extractor / Fuzzy Signature / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 209, BioX2023-59, pp. 8-11, Oct. 2023.
Paper # BioX2023-59 
Date of Issue 2023-10-05 (BioX) 
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 BioX2023-59

Conference Information
Committee BioX  
Conference Date 2023-10-12 - 2023-10-13 
Place (in Japanese) (See Japanese page) 
Place (in English) Nobumoto Ohama Memorial Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To BioX 
Conference Code 2023-10-BioX 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Speeding up the nearest-vector algorithm for triangular lattices 
Sub Title (in English)  
Keyword(1) Triangular Lattice  
Keyword(2) Closest Vector Problem  
Keyword(3) Fuzzy Extractor  
Keyword(4) Fuzzy Signature  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Kenta Takahashi  
1st Author's Affiliation Hitachi, Ltd. (Hitachi)
2nd Author's Name Wataru Nakamura  
2nd Author's Affiliation Hitachi, Ltd. (Hitachi)
3rd Author's Name  
3rd Author's Affiliation ()
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2023-10-12 15:05:00 
Presentation Time 20 minutes 
Registration for BioX 
Paper # BioX2023-59 
Volume (vol) vol.123 
Number (no) no.209 
Page pp.8-11 
#Pages 4 
Date of Issue 2023-10-05 (BioX) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan