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Markulf Kohlweiss

Research Fellow

Academic Research

The Brave New World of Global Generic Groups and UC-Secure Zero-Overhead SNARKs

Jan Bobolz,Pooya Farshim,Markulf Kohlweiss,Akira Takahashi

December 2024, To appear in: TCC '24

UNIVERSAL COMPOSITION

The Uber-Knowledge Assumption: A Bridge to the AGM

Balthazar Bauer,Pooya Farshim,Patrick Harasser,Markulf Kohlweiss

October 2024, IACR Communications in Cryptology

ZKSNARKS

PARScoin: A Privacy-preserving, Auditable, and Regulation-friendly Stablecoin

Amirreza Sarencheh,Prof Aggelos Kiayias,Markulf Kohlweiss

September 2024, CANS '24

STABLECOIN

Foundations of Anonymous Signatures: Formal Definitions, Simplified Requirements, and a Construction Based on General Assumptions

Jan Bobolz,Jesus Diaz,Markulf Kohlweiss

March 2024, Financial Cryptography 2024

ANONYMOUS SIGNATURES

Threshold Structure-Preserving Signatures

Elizabeth Crites,Markulf Kohlweiss,Bart Preneel,Mahdi Sedaghat,Daniel Slamanig

December 2023, Asiacrypt '23

How to Compile Polynomial IOP into Simulation-Extractable SNARKs: A Modular Approach

Markulf Kohlweiss,Mahak Pancholi,Akira Takahashi

November 2023, TCC '23

SNARKS

From Polynomial IOP and Commitments to Non-malleable zkSNARKs

Antonio Faonio,Dario Fiore,Markulf Kohlweiss,Luigi Russo,Michal Zajac

November 2023, TCC '23

ZKSNARKS

Privacy-Preserving Blueprints

Markulf Kohlweiss,Anna Lysyanskaya,An Nguyen

April 2023, Eurocrypt '23

PRIVACY

PEReDi: Privacy-Enhanced, Regulated and Distributed Central Bank Digital Currencies

Prof Aggelos Kiayias,Markulf Kohlweiss,Amirreza Sarencheh

November 2022, ACM CCS '22

CBDC

What Makes Fiat–Shamir zkSNARKs (Updatable SRS) Simulation Extractable?

Chaya Ganesh,Hamidreza Khoshakhlagh,Markulf Kohlweiss,Anca Nitulescu,Michał Zając

September 2022, SCN '22

ZERO-KNOWLEDGE

Zswap: zk-SNARK Based Non-Interactive Multi-Asset Swaps

Felix Engelmann,Thomas Kerber,Markulf Kohlweiss,Mikhail Volkhov

July 2022, PoPETs '22

NIZK MULTI-ASSET PRIVACY

Bottom-up Trust Registry in Self Sovereign Identity

Kai Jun Eer,Jesus Diaz,Markulf Kohlweiss

July 2022, BLOCKCHAIN '22

SSI

Composition with Knowledge Assumptions

Thomas Kerber,Prof Aggelos Kiayias,Markulf Kohlweiss

August 2021, Crypto 2021

ZEROKNOWLEDGE

Kachina - Foundations of Private Smart Contracts

Thomas Kerber,Prof Aggelos Kiayias,Markulf Kohlweiss

June 2021, CSF '21

PRIVACY SMARTCONTRACT

Consistency for Functional Encryption

Christian Badertscher,Prof Aggelos Kiayias,Markulf Kohlweiss,Hendrik Waldner

June 2021, CSF '21

CONSISTENCY FUNCTIONAL-ENCRYPTION

Steel: Composable Hardware-based Stateful and Randomised Functional Encryption

Pramod Bhatotia,Markulf Kohlweiss,Lorenzo Martinico,Yiannis Tselekounis

May 2021, PKC '21

FUNCTIONAL-ENCRYPTION TRUSTED EXECUTION ENVIRONMENTS UNIVERSAL COMPOSITION

Mining for Privacy: How to Bootstrap a Snarky Blockchain

Thomas Kerber,Prof Aggelos Kiayias,Markulf Kohlweiss

March 2021, Financial Cryptography 2021

REFERENCE-STRING ZERO-KNOWLEDGE

Another Look at Extraction and Randomization of Groth's zk-SNARK

Karim Baghery,Markulf Kohlweiss,Janno Siim,Mikhail Volkhov

March 2021, Financial Cryptography 2021

SIMULATION EXTRACTABILITY UNIVERSAL COMPOSITION ZKSNARKS

Sonic: Zero-Knowledge SNARKs from Linear-Size Universal and Updateable Structured Reference Strings

Mary Maller,Sean Bowe,Markulf Kohlweiss,Sarah Meiklejohn

November 2019, ACM CCS 2019.

CRYPTO PRIVACY PROTOCOL ZERO-KNOWLEDGE

Ouroboros Crypsinous: Privacy-Preserving Proof-of-Stake

Thomas Kerber,Markulf Kohlweiss,Prof Aggelos Kiayias,Vassilis Zikas

May 2019, IEEE Symposium on Security and Privacy

PROOF-OF-STAKE PROTOCOL