Co-Organized by  IPSJ IEICE


The 18th International Workshop on Security
August 29 (Tue) -- August 31 (Thu), 2023
Institute of Information Security, Yokohama, Japan and ONLINE


The 18th International Workshop on Security (IWSEC 2023) will be held hybrid at Institute of Information Security, Yokohama, Japan and ONLINE between August 29--31, 2023. IWSEC 2023 is co-organized by ISEC in ESS of IEICE (Technical Committee on Information Security in Engineering Sciences Society of the Institute of Electronics, Information and Communication Engineers) and CSEC of IPSJ (Special Interest Group on Computer Security of Information Processing Society of Japan).

Original papers on the research and development of various security topics, as well as case studies and implementation experiences, are solicited for submission to IWSEC 2023.

IWSEC is an annual international workshop in Japan, co-organized by ISEC in ESS of IEICE and CSEC of IPSJ.

Previous IWSEC have been held in Kyoto (2006), Nara (2007), Kagawa (2008), Toyama (2009), Kobe (2010), Tokyo (2011), Fukuoka (2012), Naha (2013), Hirosaki (2014), Nara (2015), Tokyo (2016), Hiroshima (2017), Sendai (2018), Tokyo (2019), Fukui/Online (2020), Tokyo/Online (2021), and Tokyo/Online (2022).

If you have any questions about the workshop, please ask us via e-mail. Please do NOT contact the venue (Institute of Information Security) directly.


The accepted papers have been published by Springer, in the Lecture Notes in Computer Science (LNCS) Series.


🎉 Best Paper Award 🎉

  • aPlonK : Aggregated PlonK from Multi-Polynomial Commitment Schemes
    Miguel Ambrona, Marc Beunardeau, Anne-Laure Schmitt and Raphael Toledo

🎉 Best Student Paper Award 🎉

  • A New Security Analysis Against MAYO and QR-UOV Using Rectangular MinRank Attack
    Hiroki Furue and Yasuhiko Ikematsu

🎉 Best Poster Award 🎉

  • KOTO Crypto: Educational cryptography with the Koto
    Mine Arai, Naoto Yanai and Goichiro Hanaoka
  • Security Analysis on KpqC Round 1 Lattice-based Algorithms Using Lattice Estimator
    Hyuna Noh, Eunmin Lee, Minju Lee, Suhri Kim and Joohee Lee

What's New

August 31st, 2023


Best Poster Award has been announced. Congratulations!!

August 30th, 2023


Timetable on Day 2 has been changed to make room for the presentation skipped in Track B Session. Please be careful that the lunch break has been shortened.

August 29th, 2023


Best Paper Award and Best Student Paper Award have been announced. Congratulations!!

August 29th, 2023


Poster session and Track B session (System and Hardware Security) times have been changed. Please be careful not to make a mistake.

August 28th, 2023


Session chairs have been added to the program.

August 25th, 2023


IWSEC 2023 Proceedings are available here (participants only). We have sent the password to the email you registered.

August 20th, 2023

Guidelines for Poster Presenters

August 17th, 2023

Accepted Posters

Accepted Posters have been announced.

August 17th, 2023


The guidelines page has been prepared.

August 12th, 2023


Details of Keynote III have been announced.

August 10th, 2023


Speakers of SCIS/CSS Session have been confirmed.

August 9th, 2023


Details of Keynote II have been announced.

August 7th, 2023

Welcome Reception

Information about Welcome Reception has been announced.

August 1st, 2023

Banquet & Excursion

Information about Banquet and Excursion has been announced.

July 26th, 2023


Time Table has been published.

July 20th, 2023


Details of Keynote I have been announced.

July 17th, 2023

Call For Posters

Call for posters for IWSEC2023 is now available.

June 12th, 2023

Accepted Papers

Accepted Papers have been announced.

May 30th, 2023


The registration page has been launched.

May 14th, 2023

iPWS Cup (Data Anonymization Competition)

iPWS Cup website is launched.

May 11th, 2023


Keynote III speaker has been confirmed.

May 2nd, 2023


Keynote II speaker has been confirmed.

April 24th, 2023


Keynote I speaker has been confirmed.

March 25th, 2023

Extension of deadline for paper submission

Deadline for paper submission has been extended.

March 18th, 2023

Program Committee

Program Committee has been updated.

March 3rd, 2023


Paper submission has been opened.

February 8th, 2023

Instructions for Authors and Important Dates

The instructions for authors are available in Call for Papers.

Important Dates has been fixed.

December 23th, 2022

IWSEC 2023 Website

IWSEC 2023 website is launched.