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<title>RWC2021 | Real-World decentralized Cryptography Workshop</title>
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src="logo.svg"
alt="Web3 Foundation Logo"
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<main>
<div class="hero wrapper">
<h1 class="hero-headline">
Workshop on Real-World Decentralized Cryptography
</h1>
<div class="register">
<div class="register-date">January 15, 2021</div>
<a
href="https://www.eventbrite.com/e/workshop-on-real-world-decentralized-cryptography-registration-134425567491"
target="_blank"
rel="noopener noreferrer"
class="register-link"
>Registration
<svg
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<img src="BIS2-01.svg" class="hero-image" />
<h2 class="hero-text">
<b
>The RWdC workshop addresses the challenges that occur when
distributed (cryptographic) protocols are implemented in a
decentralized setup where there is no central entity to coordinate
and validate the correct participation in the protocol.</b
>
</h2>
</div>
<div class="content">
<div class="wrapper columns">
<div class="column">
<p>
With all the current interest in personal data ownership, there
is a growing need for better security, freedom and control for
online users. Along with this, a counter-movement of
decentralized applications where no single entity controls the
system has started to grow. Over the two last decades many
distributed (cryptographic) schemes have been designed and
deployed in the real world in the quest to build a decentralized
web.
</p>
<p>
Although these topics are discussed in the literature (e.g.
threshold cryptographic schemes), most current solutions lack
the robustness necessary for real-world usage: many protocols
require that any failure results in restarting the process and
consequently the threshold may need to be changed.
</p>
<p>
The goals of this workshop are to review the state-of-the-art
research and practices, discuss existing challenges in terms of
security and performance, and to trigger new research directions
to tackle the challenges.
</p>
<p>
Topics such as distributed key generation, threshold
cryptography, and multiparty computation will be presented in
the workshop and in a concluding panel issues such as setups,
robustness, and reconfigurability of cryptographic schemes when
they are deployed in decentralized real-world conditions will be
discussed.
</p>
</div>
<div class="column">
<h2>Organizers</h2>
<p>
Aniket Kate - Purdue University<br />
Fatemeh Shirazi - Web3 Foundation
</p>
<h2>Event Information</h2>
<p>
Registration: The workshop will take place online. Attendance to
the workshop is free of charge<br />
Date: January 15, 2021
</p>
<h2>Tentative Schedule (all times are in CET)</h2>
<ul class="schedule">
<li class="schedule-entry">
<div class="schedule-date">3:00 pm — 3:15 pm</div>
<div class="schedule-speaker">
Aniket Kate and Fatemeh Shirazi
</div>
<div class="schedule-topic">
Introduction and Organization
</div>
<div class="schedule-position">
Purdue University, Web3 Foundation
</div>
</li>
<li class="schedule-entry">
<div class="schedule-date">3:15 pm — 3:45 pm</div>
<div class="schedule-speaker">Omer Shlomovits</div>
<div class="schedule-topic">
Baby Sharks: small subgroup attacks on DKG implementations
</div>
<div class="schedule-position">ZenGo X</div>
<div class="schedule-contents">
<div class="schedule-contents__title">Abstract</div>
<div class="schedule-contents__content">
<p>
We will show how injecting small order subgroup elements
can bypass security for cryptographic primitives used in
DKGs such as VSS and sigma protocols. We discuss the
potential damage of our attacks on applications such as
consensus and random beacon.
</p>
</div>
</div>
<p>
<a
target="nofollow noreferrer _blanc"
href="https://www.youtube.com/watch?v=FbcNCmMfbbw"
>Watch video ➚</a
>
</p>
</li>
<li class="schedule-entry">
<div class="schedule-date">3:45 pm — 4:15 pm</div>
<div class="schedule-speaker">Jeffrey Burdges</div>
<div class="schedule-topic">Verifiable Luck</div>
<div class="schedule-position">Web3 Foundation</div>
<div class="schedule-contents">
<div class="schedule-contents__title">Abstract</div>
<div class="schedule-contents__content">
<p>
As reusable PRFs, VRFs provide a wondrous flexibility
for distributed systems. We give an applied perspective
on verifiable random functions (VRFs), including fun
examples, intuition for proper usage, miss-use
resistance, and implementation.
</p>
</div>
</div>
<p>
<a
target="nofollow noreferrer _blanc"
href="https://www.youtube.com/watch?v=VyiG_JNxvIw"
>Watch video ➚</a
>
</p>
</li>
<li class="schedule-entry">
<div class="schedule-date">4:15 pm — 4:45 pm</div>
<div class="schedule-speaker">Eleftherios Kokoris-Kogias</div>
<div class="schedule-topic">
Asynchronous Distributed Key Generation for Computational
Secure Randomness, Consensus and Threshold Signatures
</div>
<div class="schedule-position">
IST Austria & Novi Research
</div>
<div class="schedule-contents">
<div class="schedule-contents__title">Abstract</div>
<div class="schedule-contents__content">
<p>
Asynchronous Distributed Key Generation (ADKG) algorithm
is the first algorithm that generates cryptographic keys
with a dual (f, 2f+1)-threshold. ADKG removes the
trusted setup that consensus and MPC protocols need.
</p>
</div>
</div>
<p>
<a
target="nofollow noreferrer _blanc"
href="https://www.youtube.com/watch?v=3pJx-FCtQhc"
>Watch video ➚</a
>
</p>
</li>
<li class="schedule-entry">
<div class="schedule-date">4:45 pm — 5:15 pm</div>
<div class="schedule-speaker">Mary Maller</div>
<div class="schedule-topic">
Aggregatable Distributed Key Generation
</div>
<div class="schedule-position">Ethereum Foundation</div>
<div class="schedule-contents">
<div class="schedule-contents__title">Abstract</div>
<div class="schedule-contents__content">
<p>
We present a distributed key generation protocol with
aggregatable and publicly-verifiable transcripts that
reduces the size of the final transcript and time to
verify by leveraging gossip rather than all-to-all
communication.
</p>
</div>
</div>
<p>
<a
target="nofollow noreferrer _blanc"
href="https://www.youtube.com/watch?v=Zx8pzgkJ9F0"
>Watch video ➚</a
>
</p>
</li>
<li class="schedule-entry">
<div class="schedule-date">5:15 pm — 5:45 pm</div>
<div class="schedule-speaker">Alin Tomescu</div>
<div class="schedule-topic">
Towards Scalable Threshold Cryptosystems
</div>
<div class="schedule-position">VMware Research</div>
<div class="schedule-contents">
<div class="schedule-contents__title">Abstract</div>
<div class="schedule-contents__content">
<p>
We will present new techniques for authenticating
polynomial evaluations that help scale threshold
signature schemes, verifiable secret sharing and
distributed key generation protocols to hundreds of
thousands of participants and beyond.
</p>
</div>
</div>
<p>
<a
target="nofollow noreferrer _blanc"
href="https://www.youtube.com/watch?v=XGulOcDo2OE"
>Watch video ➚</a
>
</p>
</li>
<li class="schedule-entry">
<div class="schedule-date">5:45 pm — 7:00 pm</div>
<div class="schedule-topic">
Panel - Decentralized Cryptography: A Distant Dream or an
Immediate Possibility?
</div>
<div class="schedule-speaker">Ittai Ibrahim</div>
<div class="schedule-position">VMware Research</div>
<div class="schedule-speaker">Andrew Miller</div>
<div class="schedule-position">
University of Illinois, Urbana-Champaign
</div>
<div class="schedule-speaker">Christian Cachin</div>
<div class="schedule-position">University of Bern</div>
<div class="schedule-speaker">Harry Halpin</div>
<div class="schedule-position">Nym Technologies</div>
<div class="schedule-speaker">Host: Aniket Kate</div>
<div class="schedule-position">Purdue University</div>
<p>
<a
target="nofollow noreferrer _blanc"
href="https://www.youtube.com/watch?v=WfxmvK13HUs"
>Watch video ➚</a
>
</p>
</li>
<li class="schedule-entry">
<div class="schedule-date">7:00 pm — 7:05 pm</div>
<div class="schedule-speaker">
Fatemeh Shirazi, Aniket Kate
</div>
<div class="schedule-topic">Closing Remarks</div>
<div class="schedule-position">
Web3 Foundation, Purdue University
</div>
</li>
</ul>
</div>
</div>
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