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The 6th International Workshop on
Boolean Functions and their Applications (BFA)
Dedicated to Vincent Rijmen’s 50th anniversary
September 6 – September 10, 2021
Rosendal, Norway / Hybrid
Boolean functions and more generally all the discrete structures used in error correcting coding, cryptography or communications, are highly active areas of research. The workshop Boolean Functions and their Applications (BFA) is to provide a forum for researchers who are working on discrete functions and structures, particularly on Boolean functions, to exchange ideas and interests in open problems, and to further explore their applications in cryptography, error correcting codes and communications.
This workshop is organised by the Selmer Centre at the University of Bergen. It will take place at the Rosendal Fjordhotel in Norway between September 6 and September 10, 2021. The event is at the moment planned to be hybrid, that is, both physical and online participation is possible. The fee for physical participation is 2000 NOK (regular) and 1700 NOK (for students). There is no registration fee for online participation although all participants must register (for physical or for online participation).
The following events will also take place alongside the BFA workshop:
- the awarding of the George Boole International Prize
- a meeting for the Cryptography and communications editorial board
All participants who wish to contribute a 15-20 minute talk are invited to submit a 4-5 page abstract that summarizes their work in PDF format before April 20, 2021. The authors of the accepted abstracts will have a choice of presenting in person at the venue or online via zoom. It is a requirement that videos with records of presentations to be submitted by August 20, 2021.
After the workshop, all participants will be invited to submit a paper to a special issue on Boolean Functions and their Applications in the journal
Important Dates
| Submission deadline | |
| Acceptance notification | June 20, 2021 |
| Camera-ready submission | August 10, 2021 |
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Video submission of presentations deadline |
August 20, 2021 |
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Registration deadline for physical participation |
August 22, 2021 |
| BFA 2021 | September 6 – September 10 2021 |
Travel information
Travel schedule
Those attending the physical conference will depart by boat from Bergen on Sunday, September 5 at 18:45 (or, alternatively, at 19:10 from Flesland); after a 2-hour trip, we will arrive at Rosendal for a welcome dinner. The workshop will end on Friday, September 10, and after lunch, the participants will head back to Bergen by boat, departing at 14:25. Ferry tickets can be purchased online.
NB: The departure times for the ferry vary from day to day, so if you plan to travel between Bergen and Rosendal on dates other than September 5 and September 10, you should carefully check the schedules provided by the operator. For instance, the latest ferry from Bergen to Rosendal departs at 18:45 on Sundays, while on weekdays, the latest ferry leaves at 16:30.
Travel regulations for entering Norway
Restrictions and regulations for travelling to Norway from abroad are changing on a frequent basis. We strongly advise participants of BFA not resident in Norway to carefully consult the latest rules and travel advice before planning any trips, and to postpone any bookings and reservation until August. Since registration (for physical or online registration) is required for attending BFA, participants are advised to complete the free registration for the online event in case of uncertainty.
To the date of August 12, people that are exempt from the quarantine when entering Norway are:
– people coming from a region that has a sufficiently low infection rate (green countries). You can find a map here. This map is updated every Monday.
In this case, it is mandatory to fill the form at https://reg.entrynorway.no/?lang=en, and they do not have to transit in orange or red countries while they are traveling to Norway. Travelers must complete their registration prior to their arrival in Norway and may only register their journey in the 72 hours before their time of arrival.
Please note that in this case you need to provide a negative Covid test before arrival and you have also to take a covid test when entering Norway. If you travel by airplane, this last test will be done at the airport.
– People who are fully vaccinated or who have recovered from COVID-19 in the past 6 months, and who can document this with a verifiable COVID-19 certificate that is connected to the EUDCC gateway, will be able to enter Norway freely, regardless of which country they are traveling from. These people are exempt from the duty to quarantine, testing prior to arrival, testing at the border, and the requirement of entry registration.
For more information check the webpage https://www.fhi.no/en/op/novel-coronavirus-facts-advice/facts-and-general-advice/entry-quarantine-travel-covid19/ or https://www.udi.no/en/about-the-corona-situation/i-am-abroad/
Program
NB: The program uses Norwegian time (GMT+2).
| Monday 6/9 | Tuesday 7/9 | Wednesday 8/9 | Thursday 9/9 | Friday 10/9 | |
| 09.30 – 10.20 | Welcome
Invited talk 1: Hiroaki Taniguchi |
Invited talk 3: Gregor Leander | Full day excursion | George Boole Prize award
Invited talk 6: Pantelimon Stanica |
Invited talk 9: Yue Zhou |
| 10.20 – 10.45 | Robert Coulter & Nikolay Kaleyski
Further observations on the distance invariant |
Sihem Mesnager, Sihong Su & Jingjing Li
On concrete constructions of weightwise perfectly balanced functions with optimal algebraic immunity & high weightwise nonlinearity |
Wrya Kadir, Chunlei Li & Ferdinando Zullo
Decoding a class of maximum Hermitian rank metric codes |
Jothishwaran Chinnaswamy Arunagiri, Vishvendra Singh Poonia, Pantelimon Stanica & Sugata Gangopadhyay
A quantum algorithm to verify the Strict Avalanche criterion in Boolean functions |
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| 10.45 – 11.05 | Break | Break | Break | Break | |
| 11.05 – 11.30 | Yuyin Yu & Leo Perrin
Constructing More Quadratic APN Functions with the QAM Method |
Nurdagül Anbar & Wilfried Meidl
Bent partitions |
Said Eddahmani & Sihem Mesnager
Explicit Values of the Tables DDT, BCT, FBCT, and FBDT |
Fei Guo & Zilong Wang
Constructing Boolean functions with four-valued and five-valued spectra by modifying the Maiorana-McFarland class of bent functions |
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| 11.30 – 11.55 | Shibam Ghosh & Leo Perrin
Some Experimental Results on Quadratic APN Functions |
Amar Bapić, Enes Pasalic & Fengrong Zhang
Constructing new superclasses of bent functions from known ones |
Jaeseong Jeong, Namhun Koo & Soonhak Kwon
Constructing Differentially 4-uniform Involutions over GF(22k) by using Carlitz form |
Lyubomir Borissov & Yuri Borissov
On the irrationality of the angles of Kloosterman sums over GF(p) |
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| 11.55 – 12.20 | Benjamin Chase & Petr Lisonek
Constructions & applications of Walsh zero spaces |
José Andrés Armario, Ronan Egan & Dane Flannery
Generalized partially bent functions, generalized perfect arrays & cocyclic Butson matrices |
Sartaj Ul Hasan, Mohit Pal & Pantelimon Stanica
The (generalized) boomerang uniformity of some classes of functions over finite fields |
Abbas Abhakim & Janusz Szmidt
Multiple de Bruijn Sequences & the Cross-Join Method Farewell |
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| 12.20 – 14.00 | Lunch | Lunch | Lunch | Lunch | |
| 14.00 – 14.50 | Invited talk 2: Christof Beierle
Recent Results on the Search for APN Functions in Small Dimension |
Invited talk 4: Vincent Rijmen
Differential Cryptanalysis using Quasidifferential Trails |
Invited talk 7: Chunming Tang
Boolean functions with high (fast) algebraic immunity and their applications in linear codes |
Departure | |
| 14.50 – 15.15 | Thomas Cusick & Alexandru Chirvasitu
Symbolic dynamics & rotation symmetric Boolean functions |
Ting Gu, Zhixiong Chen, Andrew Klapper & Yu Zhou
On the computation of q-transform of Boolean functions |
Daniele Bartoli, Marco Calderini, Constanza Riera & Pantelimon Stanica
Low c-differential uniformity for functions modified on subfields |
||
| 15.15 – 15.35 | Break | Break | Break | ||
| 15.35 – 16.00 | Meltem Sonmez Turan & Rene Peralta
On the Multiplicative Complexity of Cubic Boolean Functions |
Invited talk 5: Christian Rechberger
Big and Huge S-boxes, and their use-cases in new designs video
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Invited talk 8: Daniel Panario
Comparing balanced sequences |
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| 16.00 – 16.25 | Irene Villa, Robert Coulter & Emily Bergman
The classification of planar monomials over fields of order p3 |
For any question or request, please contact Nikolay Kaleyski