Polymath: Groth16 Is Not The Limit

Helger Lipmaa,

Crypto 2024 (conference presentation - full session, my talk is #1)

Constant-Size zk-SNARKs in ROM from Falsifiable Assumptions 

Helger Lipmaa, Roberto Parisella, Janno Siim,

Eurocrypt 2024 (conference presentation)

Constant-Size zk-SNARKs in ROM from Falsifiable Assumptions 

Helger Lipmaa, Roberto Parisella, Janno Siim,

Eurocrypt 2024 (invited presentation, PSE)

Algebraic Group Model with Oblivious Sampling

Helger Lipmaa, Roberto Parisella, Janno Siim,

Asiacrypt 2023 (conference presentation)

Start at 39:00

Counting Vampires: From Univariate Sumcheck to Updatable ZK-SNARK

Helger Lipmaa, Janno Siim, Michał Zając,

Asiacrypt 2022 (conference presentation)

Counting Vampires: From Univariate Sumcheck to Updatable ZK-SNARK

Helger Lipmaa, Janno Siim, Michał Zając,

Asiacrypt 2022

 Short (5 min) conference presentation

Counting Vampires: From Univariate Sumcheck to Updatable ZK-SNARK

Helger Lipmaa, Janno Siim, Michał Zając,

Asiacrypt 2022

Presentation at 5th ZKProof Workshop

Efficient NIZKs for Algebraic Sets

Geoffroy Cousteau, Helger Lipmaa, Roberto Parisella, Arne Tobias Ødegaard

Asiacrypt 2021

Conference presentation (click on video to watch it on Youtube)

Verifiably-Extractable OWFs and Their Applications to Subversion Zero-Knowledge

Prastudy Fauzi, Helger Lipmaa, Janno Siim, Michał Zając, Arne Tobias Ødegaard

Asiacrypt 2021

Conference presentation (click on video to watch it on Youtube)

Snarky Ceremonies

Markulf Kohlweiss, Mary Maller, Janno Siim, Mikhail Volkhov

Asiacrypt 2021

Conference presentation (click on the video to watch it on YouTube)

More Efficient Shuffle Argument from Unique Factorization

Toomas Krips and Helger Lipmaa

CT-RSA 2021

Conference presentation (all session, our talk starts at 10:30).

FC21: Somewhere Statistically Binding Commitment Schemes with Applications

Prastudy Fauzi, Helger Lipmaa, Janno Siim, Zaira Pintado

FC 2021

Conference presentation (click on video to watch it on Youtube)

Succinct Functional Commitment for a Large Class of Arithmetic Circuits

Helger Lipmaa, Kateryna Pavlyk

Asiacrypt 2020

Conference presentation (click on video to watch it on Youtube)

On Adaptive Security of Delayed Input Sigma Protocols and Fiat Shamir NIZKs

Michele Ciampi, Roberto Parisella, Daniele Venturi

SCN 2020

Conference presentation

Key and Argument Updatable QA NIZKs

Helger Lipmaa

SCN 2020

Conference presentation

On QA-NIZK in the BPK Model

Behzad Abdolmaleki, Helger Lipmaa, Janno Siim, Michał Zając

PKC 2020

Conference presentation

Quisquis: A New Design for Anonymous Cryptocurrencies.

Prastudy Fauzi, Sarah Meiklejohn, Rebekah Mercer, Claudio Orlandi:

ASIACRYPT (1) 2019: 649-678

Presentation at Stanford Blockchain Conference 2019

An Efficient Pairing Based Shuffle Argument

Prastudy Fauzi, Helger Lipmaa, Janno Siim, Michal Zajac

Asiacrypt 2017

Presentation at Asiacrypt 2017

A Subversion-Resistant SNARK

Behzad Abdolmaleki, Karim Baghery, Helger Lipmaa, Michal Zajac

Asiacrypt 2017

Presentation at Asiacrypt 2017

A Shuffle Argument Secure in the Generic Model

Prastudy Fauzi, Helger Lipmaa, Michal Zajac

Asiacrypt 2016

Presentation at Asiacrypt 2016

Succinct Non-Interactive Zero Knowledge Arguments from Span Programs and Linear Error-Correcting Codes

Helger Lipmaa

ASIACRYPT 2013

Presentation at University of Latvia (2013)

On the Feasibility of Consistent Computations 

Sven Laur, Helger Lipmaa

PKC 2010

Presentation at PKC 2020