TCC 2021

November 8-11 2021

Raleigh, United States

We're excited to see you in Raleigh!

Participation Guidelines

TCC is being organized as a hybrid conference. Some participants and speakers will be onsite in Raleigh, and sessions will be held in the Hunt Library on the NCSU campus. Virtual participants will participate through the IACR portal application, and a link to "Join the Conference" link below.

All participants at IACR conferences are obligated to follow the IACR code of conduct. When you participate in Q&A, chat, etc, you must do so in such a way that you are readily identifiable (i.e. by using the name you are known by in your professional work).

Join the conference

The Conference Portal

Once you login, you will see the portal app shown on the right. The default view has various video conference chatrooms, and the tabs at the top allow you to navigate to the program where you will find Zoom links. The chat tab allows access to the chat rooms on

Live Sessions

The conference is organized over 4 days. Sessions consist of live 5 minute presentations of the papers, which are grouped by topic, followed by a Q&A from both local and remote participants. Live sessions will be broadcast over Zoom, including both local and remote speakers.

To ask a question during a session, we recommend using the relevant stream on Zulip. There is also opportunity to ask questions using the Zoom chat, but this is less convenient for moderators. A Zulip topic for each session is linked from the program. Chat is available via browser, but there are also desktop and mobile apps.


The live sessions will be streamed live on our YouTube channel and will be available for later viewing.

If you cannot participate live, you will still have access to all talks on our YouTube channel. The authors have pre-recorded their talks and you can view them at any time. Additionally, there will be copies of the live sessions available to watch.

Text and Video Chat

Much like at a face-to-face conference, we know that the best conversations can happen in the hallways or at coffee breaks. We encourage you to make use of the social video conference rooms in the portal, and the zulip instance we have set up on to connect with other conference attendees. There are a variety of channels, organized by topic. You can also start small video chat rooms from Zulip.

Attending a Session

We are using Zoom for our live Q&A sessions. You do not have to install Zoom software to attend! If you plan to attend a session using your browser, it needs to be one of the following:

  • Internet Explorer* 10 or higher
  • Chromium-based Microsoft Edge 80 or higher
  • Google Chrome 53.0.2785 or higher
  • Safari* 10.0.602.1.50 or higher
  • Firefox 76 or higher
  • Chromium (not officially supported by Zoom, but the IACR has tested it and it appears to work similarly to Chrome)

* Please note that Zoom officially recommends Chrome, Edge, or Firefox for full functionality.

If you wish to use the desktop client, there are options available for all operating systems. We recommending using the Zoom native application, but you can also join through a browser.

How to enter a Zoom meeting with the web client.

Do I need a Zoom account?

No - you do not.

Frequently Asked Questions

How do I ask a question during the live Q&A sessions?

We strongly encourage you to use the corresponding Zulip stream on or to ask it verbally during the session (when called on by moderators). Note that Zulip allows for other attendees to see your question and upvote it by reacting with emojis. Authors may answer verbally during the session or have a longer discussion on Zulip.

The session times are not convenient for me. What can I do?

Unfortunately, due to the wide variety of time zones IACR members live in, we cannot accommodate everyone. We strongly encourage those who cannot attend live events to still participate in the conference asynchronously.

Live Q&A sessions and invited talks are streamed to YouTube and available for viewing after the fact. You can also watch any of the pre-recorded talks on YouTube, or participate in chat via Zulip.