Online Seminar
GAPS
About

Online GAPS continues the GAPS 2025 workshop, as a regular online seminar. It provides a platform for researchers interested in provable security for symmetric-key cryptography. Topics include proof techniques, security notions, and generic attacks; related topics such as cryptanalysis and mathematical foundations are also welcome.

Schedule
Upcoming talk
Lifting Theorem(s) from Classical to Quantum Security
Minki Hhan (School of Computing, KAIST)
Friday, April 10, 2026 at 08:00 UTC

In this talk, we will explore various lifting theorems establishing security in the quantum idealized models. The high-level theme of these lifting theorems is to relate the success probability of an arbitrary quantum adversary to that of a classical algorithm making only a small number of classical queries. We will see some example applications and limitations of the lifting theorems, as well as some open problems.

Calendar of Talks

Please note that all times are given in UTC. You may consider adding the calendar (or a specific event) to your Google account; in that case, the times in your calendar will be adjusted to your time zone setting.

Instructions

The seminars take place on Zoom, and recordings of the presentations may be uploaded to YouTube.

For audience
Joining live session:
  1. If you wish to join the live session, please request access using the following form. You may also consider joining the google group. In either case, please indicate your name and affiliation when requesting access.
  2. The Zoom meeting link and instructions will be posted on the google group / sent to emails by request few hours before the session.
  3. Please join at least 5 minutes ahead of the scheduled start.
  4. Please mute your microphone during the talk, unless you want to ask a question.
  5. We strongly encourage questions. You may unmute and directly ask the question, or write on the in-built chat and the moderator will inform the speaker.
  6. All talks and up to 15 minutes of Q&A will be recorded. An unrecorded Q&A may follow directly after that.
Watching the recorded talks:
  1. We will post all talks to the YouTube channel, if the speaker agrees.
  2. A google group conversation thread might also be available (for up to 15 days) for offline discussions with the speaker, if they consent.
For speakers
  • One of the goals of this online seminar is to make research on symmetric-key cryptography more widely accessible, so by default we will share the talk recordings on YouTube. Please let us know in advance if you DO NOT want your presentation to be recorded. If your presentation is recorded, please ensure that it does not include any copyrighted material.
  • Talks are expected to last approximately 1h. The format is flexible, but talks should be accessible to a broad audience.
  • Try to join about 10-15 minutes before your session to make sure your setup is working smoothly.
Contact
The online GAPS seminar is organised by:

  • Ritam Bhaumik
  • Wonseok Choi
  • Avijit Dutta
  • Ashwin Jha
  • Mustafa Khairallah
  • Charlotte Lefevre
  • Yaobin Shen

You may contact them at onlinegaps@gmail.com to suggest talks, or to join the google group. Please note that talk slots are limited, so we may not be able to accommodate every suggestion.