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Paper Abstract and Keywords
Presentation 2020-09-04 11:35
A Secure Computation Protocal of Inner Product Using HQC Cryptosystem
Taiga Nakayama, Masanori Hirotomo (Saga Univ.), Youji Fukuta (Kindai Univ.), Masami Mohri (Gifu Univ.), Yoshiaki Shiraishi (Kobe Univ.) IT2020-23
Abstract (in Japanese) (See Japanese page) 
(in English) In big data analysis and data mining, confidential data such as personal information is included in the data to be handled, so confidential calculation that can be calculated while protecting privacy is drawing attention. These secret computation protocols are designed by applying public key cryptography that utilizes the difficulty of number theory-based problems such as prime factorization and discrete logarithm problems. When a practical quantum computer is realized, the secret computation protocol is used. The security of the protocol cannot be maintained. Several code-based cryptosystems have been proposed as quantum resistant cryptosystems. Gaborit et al. have proposed a public key cryptosystem HQC based on the quasi-cyclic syndrome decryption problem to the NIST post-quantum cryptographic standardization competition. In this paper, we propose a quantum-resistant secure computation protocol of inner product by applying HQC cryptosystem.
Keyword (in Japanese) (See Japanese page) 
(in English) Secure Computation / Inner Product / HQC Cryptosystem / Post-Quantum / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 157, IT2020-23, pp. 31-36, Sept. 2020.
Paper # IT2020-23 
Date of Issue 2020-08-28 (IT) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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)
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Conference Information
Committee IT  
Conference Date 2020-09-04 - 2020-09-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Error correcting codes, General 
Paper Information
Registration To IT 
Conference Code 2020-09-IT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Secure Computation Protocal of Inner Product Using HQC Cryptosystem 
Sub Title (in English)  
Keyword(1) Secure Computation  
Keyword(2) Inner Product  
Keyword(3) HQC Cryptosystem  
Keyword(4) Post-Quantum  
1st Author's Name Taiga Nakayama  
1st Author's Affiliation Saga University (Saga Univ.)
2nd Author's Name Masanori Hirotomo  
2nd Author's Affiliation Saga University (Saga Univ.)
3rd Author's Name Youji Fukuta  
3rd Author's Affiliation Kindai University (Kindai Univ.)
4th Author's Name Masami Mohri  
4th Author's Affiliation Gifu University (Gifu Univ.)
5th Author's Name Yoshiaki Shiraishi  
5th Author's Affiliation Kobe University (Kobe Univ.)
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Date Time 2020-09-04 11:35:00 
Presentation Time 25 
Registration for IT 
Paper # IEICE-IT2020-23 
Volume (vol) IEICE-120 
Number (no) no.157 
Page pp.31-36 
#Pages IEICE-6 
Date of Issue IEICE-IT-2020-08-28 

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