Helger Lipmaa

ORCID

Publication Activity (10 Years)

Years Active: 1998-2024
Publications (10 Years): 59

Top Venues

IACR Cryptol. ePrint Arch.

ASIACRYPT (3)

ASIACRYPT (2)

SCN

Publications

Helger Lipmaa, Roberto Parisella, Janno Siim
Constant-Size zk-SNARKs in ROM from Falsifiable Assumptions. IACR Cryptol. ePrint Arch. 2024 (2024)
Helger Lipmaa
Polymath: Groth16 Is Not the Limit. CRYPTO (10) (2024)
Helger Lipmaa, Roberto Parisella, Janno Siim
On Knowledge-Soundness of Plonk in ROM from Falsifiable Assumptions. IACR Cryptol. ePrint Arch. 2024 (2024)
Helger Lipmaa, Roberto Parisella, Janno Siim
Constant-Size zk-SNARKs in ROM from Falsifiable Assumptions. EUROCRYPT (6) (2024)
Matteo Campanelli, Antonio Faonio, Dario Fiore, Tianyu Li, Helger Lipmaa
Lookup Arguments: Improvements, Extensions and Applications to Zero-Knowledge Decision Trees. Public Key Cryptography (2) (2024)
Helger Lipmaa
Polymath: Groth16 Is Not The Limit. IACR Cryptol. ePrint Arch. 2024 (2024)
Helger Lipmaa, Roberto Parisella, Janno Siim
Algebraic Group Model with Oblivious Sampling. TCC (4) (2023)
Matteo Campanelli, Antonio Faonio, Dario Fiore, Tianyu Li, Helger Lipmaa
Lookup Arguments: Improvements, Extensions and Applications to Zero-Knowledge Decision Trees. IACR Cryptol. ePrint Arch. 2023 (2023)
Helger Lipmaa, Roberto Parisella
Set (Non-)Membership NIZKs from Determinantal Accumulators. LATINCRYPT (2023)
Helger Lipmaa
On Black-Box Knowledge-Sound Commit-And-Prove SNARKs. IACR Cryptol. ePrint Arch. 2023 (2023)
Helger Lipmaa, Roberto Parisella, Janno Siim
Algebraic Group Model with Oblivious Sampling. IACR Cryptol. ePrint Arch. 2023 (2023)
Helger Lipmaa
On Black-Box Knowledge-Sound Commit-And-Prove SNARKs. ASIACRYPT (2) (2023)
Helger Lipmaa, Roberto Parisella
Set (Non-)Membership NIZKs from Determinantal Accumulators. IACR Cryptol. ePrint Arch. 2022 (2022)
Helger Lipmaa, Janno Siim, Michal Zajac
Counting Vampires: From Univariate Sumcheck to Updatable ZK-SNARK. IACR Cryptol. ePrint Arch. 2022 (2022)
Helger Lipmaa, Janno Siim, Michal Zajac
Counting Vampires: From Univariate Sumcheck to Updatable ZK-SNARK. ASIACRYPT (2) (2022)
Helger Lipmaa
A Unified Framework for Non-universal SNARKs. Public Key Cryptography (1) (2022)
Helger Lipmaa
A Unified Framework for Non-Universal SNARKs. IACR Cryptol. ePrint Arch. 2021 (2021)
Behzad Abdolmaleki, Hamidreza Khoshakhlagh, Helger Lipmaa
Smooth Zero-Knowledge Hash Functions. INDOCRYPT (2021)
Toomas Krips, Helger Lipmaa
More Efficient Shuffle Argument from Unique Factorization. IACR Cryptol. ePrint Arch. 2021 (2021)
Prastudy Fauzi, Helger Lipmaa, Janno Siim, Michal Zajac, Arne Tobias Ødegaard
Verifiably-Extractable OWFs and Their Applications to Subversion Zero-Knowledge. IACR Cryptol. ePrint Arch. 2021 (2021)
Behzad Abdolmaleki, Helger Lipmaa, Janno Siim, Michal Zajac
On Subversion-Resistant SNARKs. J. Cryptol. 34 (3) (2021)
Geoffroy Couteau, Helger Lipmaa, Roberto Parisella, Arne Tobias Ødegaard
Efficient NIZKs for Algebraic Sets. IACR Cryptol. ePrint Arch. 2021 (2021)
Behzad Abdolmaleki, Hamidreza Khoshakhlagh, Helger Lipmaa
Smooth Zero-Knowledge Hash Functions. IACR Cryptol. ePrint Arch. 2021 (2021)
Toomas Krips, Helger Lipmaa
More Efficient Shuffle Argument from Unique Factorization. CT-RSA (2021)
Helger Lipmaa, Kateryna Pavlyk
Succinct Functional Commitment for a Large Class of Arithmetic Circuits. IACR Cryptol. ePrint Arch. 2021 (2021)
Helger Lipmaa, Kateryna Pavlyk
Gentry-Wichs is Tight: a Falsifiable Non-adaptively Sound SNARG. ASIACRYPT (3) (2021)
Geoffroy Couteau, Helger Lipmaa, Roberto Parisella, Arne Tobias Ødegaard
Efficient NIZKs for Algebraic Sets. ASIACRYPT (3) (2021)
Prastudy Fauzi, Helger Lipmaa, Janno Siim, Michal Zajac, Arne Tobias Ødegaard
Verifiably-Extractable OWFs and Their Applications to Subversion Zero-Knowledge. ASIACRYPT (4) (2021)
Prastudy Fauzi, Helger Lipmaa, Zaira Pindado, Janno Siim
Somewhere Statistically Binding Commitment Schemes with Applications. Financial Cryptography (1) (2021)
Behzad Abdolmaleki, Helger Lipmaa, Janno Siim, Michal Zajac
On Subversion-Resistant SNARKs. IACR Cryptol. ePrint Arch. 2020 (2020)
Helger Lipmaa
Key-and-Argument-Updatable QA-NIZKs. SCN (2020)
Behzad Abdolmaleki, Helger Lipmaa, Janno Siim, Michal Zajac
On QA-NIZK in the BPK Model. Public Key Cryptography (1) (2020)
Helger Lipmaa, Kateryna Pavlyk
Succinct Functional Commitment for a Large Class of Arithmetic Circuits. ASIACRYPT (3) (2020)
Prastudy Fauzi, Helger Lipmaa, Zaira Pindado, Janno Siim
Somewhere Statistically Binding Commitment Schemes with Applications. IACR Cryptol. ePrint Arch. 2020 (2020)
Behzad Abdolmaleki, Karim Baghery, Helger Lipmaa, Janno Siim, Michal Zajac
UC-Secure CRS Generation for SNARKs. IACR Cryptol. ePrint Arch. 2019 (2019)
Helger Lipmaa
Key-and-Argument-Updatable QA-NIZKs. IACR Cryptol. ePrint Arch. 2019 (2019)
Behzad Abdolmaleki, Karim Baghery, Helger Lipmaa, Janno Siim, Michal Zajac
DL-Extractable UC-Commitment Schemes. ACNS (2019)
Helger Lipmaa
Simple Yet Efficient Knowledge-Sound and Non-Black-Box Any-Simulation-Extractable ZK-SNARKs. IACR Cryptol. ePrint Arch. 2019 (2019)
Behzad Abdolmaleki, Karim Baghery, Helger Lipmaa, Janno Siim, Michal Zajac
UC-Secure CRS Generation for SNARKs. AFRICACRYPT (2019)
Behzad Abdolmaleki, Karim Baghery, Helger Lipmaa, Janno Siim, Michal Zajac
DL-Extractable UC-Commitment Schemes. IACR Cryptol. ePrint Arch. 2019 (2019)
Aggelos Kiayias, Annabell Kuldmaa, Helger Lipmaa, Janno Siim, Thomas Zacharias
On the Security Properties of e-Voting Bulletin Boards. IACR Cryptol. ePrint Arch. 2018 (2018)
Behzad Abdolmaleki, Helger Lipmaa, Janno Siim, Michal Zajac
On QA-NIZK in the BPK Model. IACR Cryptol. ePrint Arch. 2018 (2018)
Aggelos Kiayias, Annabell Kuldmaa, Helger Lipmaa, Janno Siim, Thomas Zacharias
On the Security Properties of e-Voting Bulletin Boards. SCN (2018)
Fabrice Benhamouda, Florian Bourse, Helger Lipmaa
CCA-Secure Inner-Product Functional Encryption from Projective Hash Functions. Public Key Cryptography (2) (2017)
Prastudy Fauzi, Helger Lipmaa, Janno Siim, Michal Zajac
An Efficient Pairing-Based Shuffle Argument. ASIACRYPT (2) (2017)
Helger Lipmaa
Optimally Sound Sigma Protocols Under DCRA. IACR Cryptol. ePrint Arch. 2017 (2017)
Behzad Abdolmaleki, Karim Baghery, Helger Lipmaa, Michal Zajac
A Subversion-Resistant SNARK. ASIACRYPT (3) (2017)
Behzad Abdolmaleki, Karim Baghery, Helger Lipmaa, Michal Zajac
A Subversion-Resistant SNARK. IACR Cryptol. ePrint Arch. 2017 (2017)
Helger Lipmaa, Kateryna Pavlyk
A Simpler Rate-Optimal CPIR Protocol. IACR Cryptol. ePrint Arch. 2017 (2017)
Helger Lipmaa
Prover-efficient commit-and-prove zero-knowledge SNARKs. Int. J. Appl. Cryptogr. 3 (4) (2017)
Helger Lipmaa, Kateryna Pavlyk
A Simpler Rate-Optimal CPIR Protocol. Financial Cryptography (2017)
Helger Lipmaa
Optimally Sound Sigma Protocols Under DCRA. Financial Cryptography (2017)
Fabrice Benhamouda, Florian Bourse, Helger Lipmaa
CCA-Secure Inner-Product Functional Encryption from Projective Hash Functions. IACR Cryptol. ePrint Arch. 2017 (2017)
Prastudy Fauzi, Helger Lipmaa, Janno Siim, Michal Zajac
An Efficient Pairing-Based Shuffle Argument. IACR Cryptol. ePrint Arch. 2017 (2017)
Helger Lipmaa
Prover-Efficient Commit-and-Prove Zero-Knowledge SNARKs. AFRICACRYPT (2016)
Prastudy Fauzi, Helger Lipmaa
Efficient Culpably Sound NIZK Shuffle Argument Without Random Oracles. CT-RSA (2016)
Prastudy Fauzi, Helger Lipmaa, Michal Zajac
A Shuffle Argument Secure in the Generic Model. ASIACRYPT (2) (2016)
Helger Lipmaa, Payman Mohassel, Seyed Saeed Sadeghian
Valiant's Universal Circuit: Improvements, Implementation, and Applications. IACR Cryptol. ePrint Arch. 2016 (2016)
Prastudy Fauzi, Helger Lipmaa, Michal Zajac
A Shuffle Argument Secure in the Generic Model. IACR Cryptol. ePrint Arch. 2016 (2016)
Prastudy Fauzi, Helger Lipmaa
Efficient Culpably Sound NIZK Shuffle Argument without Random Oracles. IACR Cryptol. ePrint Arch. 2015 (2015)
Aggelos Kiayias, Nikos Leonardos, Helger Lipmaa, Kateryna Pavlyk, Qiang Tang
Communication Optimal Tardos-Based Asymmetric Fingerprinting. CT-RSA (2015)
Helger Lipmaa, Kateryna Pavlyk
Analysis and Implementation of an Efficient Ring-LPN Based Commitment Scheme. CANS (2015)
Aggelos Kiayias, Nikos Leonardos, Helger Lipmaa, Kateryna Pavlyk, Qiang Tang
Optimal Rate Private Information Retrieval from Homomorphic Encryption. Proc. Priv. Enhancing Technol. 2015 (2) (2015)
Helger Lipmaa
Efficient NIZK Arguments via Parallel Verification of Benes Networks. SCN (2014)
Aggelos Kiayias, Nikos Leonardos, Helger Lipmaa, Kateryna Pavlyk, Qiang Tang
Near Optimal Rate Homomorphic Encryption for Branching Programs. IACR Cryptol. ePrint Arch. 2014 (2014)
Helger Lipmaa
A Simple Cast-as-Intended E-Voting Protocol by Using Secure Smart Cards. IACR Cryptol. ePrint Arch. 2014 (2014)
Helger Lipmaa, Vitaly Skachek
Linear Batch Codes. ICMCTA (2014)
Helger Lipmaa, Vitaly Skachek
Linear Batch Codes. CoRR (2014)
Prastudy Fauzi, Helger Lipmaa, Bingsheng Zhang
Efficient Non-Interactive Zero Knowledge Arguments for Set Operations. Financial Cryptography (2014)
Helger Lipmaa
Almost Optimal Short Adaptive Non-Interactive Zero Knowledge. IACR Cryptol. ePrint Arch. 2014 (2014)
Prastudy Fauzi, Helger Lipmaa, Bingsheng Zhang
Efficient Non-Interactive Zero Knowledge Arguments for Set Operations. IACR Cryptol. ePrint Arch. 2014 (2014)
Helger Lipmaa
Succinct Non-Interactive Zero Knowledge Arguments from Span Programs and Linear Error-Correcting Codes. ASIACRYPT (1) (2013)
Prastudy Fauzi, Helger Lipmaa, Bingsheng Zhang
Efficient Modular NIZK Arguments from Shift and Product. CANS (2013)
Helger Lipmaa
Succinct Non-Interactive Zero Knowledge Arguments from Span Programs and Linear Error-Correcting Codes. IACR Cryptol. ePrint Arch. 2013 (2013)
Bingsheng Zhang, Helger Lipmaa, Cong Wang, Kui Ren
Practical Fully Simulatable Oblivious Transfer with Sublinear Communication. Financial Cryptography (2013)
Helger Lipmaa, Tomas Toft
Secure Equality and Greater-Than Tests with Sublinear Online Complexity. ICALP (2) (2013)
Helger Lipmaa, Bingsheng Zhang
A more efficient computationally sound non-interactive zero-knowledge shuffle argument. J. Comput. Secur. 21 (5) (2013)
Helger Lipmaa
Progression-Free Sets and Sublinear Pairing-Based Non-Interactive Zero-Knowledge Arguments. TCC (2012)
Helger Lipmaa, Bingsheng Zhang
New Non-Interactive Zero-Knowledge Subset Sum, Decision Knapsack And Range Arguments. IACR Cryptol. ePrint Arch. 2012 (2012)
Helger Lipmaa, Bingsheng Zhang
A More Efficient Computationally Sound Non-Interactive Zero-Knowledge Shuffle Argument. SCN (2012)
Helger Lipmaa
Secure Accumulators from Euclidean Rings without Trusted Setup. ACNS (2012)
Rafik Chaabouni, Helger Lipmaa, Bingsheng Zhang
A Non-interactive Range Proof with Constant Communication. Financial Cryptography (2012)
Helger Lipmaa
Progression-Free Sets and Sublinear Pairing-Based Non-Interactive Zero-Knowledge Arguments. IACR Cryptol. ePrint Arch. 2011 (2011)
Helger Lipmaa
Two Simple Code-Verification Voting Protocols. IACR Cryptol. ePrint Arch. 2011 (2011)
Helger Lipmaa, Bingsheng Zhang
A More Efficient Computationally Sound Non-Interactive Zero-Knowledge Shuffle Argument. IACR Cryptol. ePrint Arch. 2011 (2011)
Jens Groth, Aggelos Kiayias, Helger Lipmaa
Multi-query Computationally-Private Information Retrieval with Constant Communication Rate. Public Key Cryptography (2010)
Rafik Chaabouni, Helger Lipmaa, Abhi Shelat
Additive Combinatorics and Discrete Logarithm Based Range Protocols. ACISP (2010)
Helger Lipmaa
On the CCA1-Security of Elgamal and Damgård's Elgamal. Inscrypt (2010)
Sven Heiberg, Helger Lipmaa, Filip van Laenen
On E-Vote Integrity in the Case of Malicious Voter Computers. ESORICS (2010)
Helger Lipmaa, Bingsheng Zhang
Two New Efficient PIR-Writing Protocols. ACNS (2010)
Sven Laur, Helger Lipmaa
On the Feasibility of Consistent Computations. Public Key Cryptography (2010)
Sven Heiberg, Helger Lipmaa, Filip van Laenen
On E-Vote Integrity in the Case of Malicious Voter Computers. IACR Cryptol. ePrint Arch. 2010 (2010)
Arne Ansper, Sven Heiberg, Helger Lipmaa, Tom André Øverland, Filip van Laenen
. NordSec (2009)
Helger Lipmaa
First CPIR Protocol with Data-Dependent Computation. ICISC (2009)
Rafik Chaabouni, Helger Lipmaa, Abhi Shelat
Additive Combinatorics and Discrete Logarithm Based Range Protocols. IACR Cryptol. ePrint Arch. 2009 (2009)
Helger Lipmaa, Bingsheng Zhang
Efficient Generalized Selective Private Function Evaluation with Applications in Biometric Authentication. Inscrypt (2009)
Helger Lipmaa
First CPIR Protocol with Data-Dependent Computation. IACR Cryptol. ePrint Arch. 2009 (2009)
Helger Lipmaa
New Communication-Efficient Oblivious Transfer Protocols Based on Pairings. ISC (2008)
Giovanni Di Crescenzo, Helger Lipmaa
Succinct NP Proofs from an Extractability Assumption. CiE (2008)
Helger Lipmaa
On the CCA1-Security of Elgamal and Damgård's Elgamal. IACR Cryptol. ePrint Arch. 2008 (2008)

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Publication Activity (10 Years)

Top Topics

Top Venues

Helger Lipmaa