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Semantic ScholarHelger Lipmaa
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- affiliation: University of Tartu, Estonia
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2010 – today
- 2017
[j5]- [c59]Behzad Abdolmaleki, Karim Baghery, Helger Lipmaa, Michal Zajac:
A Subversion-Resistant SNARK. ASIACRYPT (3) 2017: 3-33 - [c58]Prastudy Fauzi, Helger Lipmaa, Janno Siim, Michal Zajac:
An Efficient Pairing-Based Shuffle Argument. ASIACRYPT (2) 2017: 97-127 - [c57]
- [c56]Helger Lipmaa, Kateryna Pavlyk:
A Simpler Rate-Optimal CPIR Protocol. Financial Cryptography 2017: 621-638 - [c55]Fabrice Benhamouda, Florian Bourse, Helger Lipmaa:
CCA-Secure Inner-Product Functional Encryption from Projective Hash Functions. Public Key Cryptography (2) 2017: 36-66 - [e3]Helger Lipmaa, Aikaterini Mitrokotsa, Raimundas Matulevicius:
Secure IT Systems - 22nd Nordic Conference, NordSec 2017, Tartu, Estonia, November 8-10, 2017, Proceedings. Lecture Notes in Computer Science 10674, Springer 2017, ISBN 978-3-319-70289-6 [contents] - [i38]Fabrice Benhamouda, Florian Bourse, Helger Lipmaa:
CCA-Secure Inner-Product Functional Encryption from Projective Hash Functions. IACR Cryptology ePrint Archive 2017: 38 (2017) - [i37]Behzad Abdolmaleki, Karim Baghery, Helger Lipmaa, Michal Zajac:
A Subversion-Resistant SNARK. IACR Cryptology ePrint Archive 2017: 599 (2017) - [i36]Helger Lipmaa:
Optimally Sound Sigma Protocols Under DCRA. IACR Cryptology ePrint Archive 2017: 703 (2017) - [i35]Helger Lipmaa, Kateryna Pavlyk:
A Simpler Rate-Optimal CPIR Protocol. IACR Cryptology ePrint Archive 2017: 722 (2017) - [i34]Prastudy Fauzi, Helger Lipmaa, Janno Siim, Michal Zajac:
An Efficient Pairing-Based Shuffle Argument. IACR Cryptology ePrint Archive 2017: 894 (2017) - 2016
- [c54]
- [c53]Prastudy Fauzi, Helger Lipmaa, Michal Zajac:
A Shuffle Argument Secure in the Generic Model. ASIACRYPT (2) 2016: 841-872 - [c52]Prastudy Fauzi, Helger Lipmaa:
Efficient Culpably Sound NIZK Shuffle Argument Without Random Oracles. CT-RSA 2016: 200-216 - [i33]Helger Lipmaa, Payman Mohassel, Seyed Saeed Sadeghian:
Valiant's Universal Circuit: Improvements, Implementation, and Applications. IACR Cryptology ePrint Archive 2016: 17 (2016) - [i32]Prastudy Fauzi, Helger Lipmaa, Michal Zajac:
A Shuffle Argument Secure in the Generic Model. IACR Cryptology ePrint Archive 2016: 866 (2016) - 2015
- [j4]Aggelos Kiayias, Nikos Leonardos, Helger Lipmaa, Kateryna Pavlyk, Qiang Tang:
Optimal Rate Private Information Retrieval from Homomorphic Encryption. PoPETs 2015(2): 222-243 (2015) - [c51]Helger Lipmaa, Kateryna Pavlyk:
Analysis and Implementation of an Efficient Ring-LPN Based Commitment Scheme. CANS 2015: 160-175 - [c50]Aggelos Kiayias, Nikos Leonardos, Helger Lipmaa, Kateryna Pavlyk, Qiang Tang:
Communication Optimal Tardos-Based Asymmetric Fingerprinting. CT-RSA 2015: 469-486 - [i31]Prastudy Fauzi, Helger Lipmaa:
Efficient Culpably Sound NIZK Shuffle Argument without Random Oracles. IACR Cryptology ePrint Archive 2015: 1112 (2015) - 2014
- [c49]Prastudy Fauzi, Helger Lipmaa, Bingsheng Zhang:
Efficient Non-Interactive Zero Knowledge Arguments for Set Operations. Financial Cryptography 2014: 216-233 - [c48]
- [c47]Helger Lipmaa:
Efficient NIZK Arguments via Parallel Verification of Benes Networks. SCN 2014: 416-434 - [i30]
- [i29]Prastudy Fauzi, Helger Lipmaa, Bingsheng Zhang:
Efficient Non-Interactive Zero Knowledge Arguments for Set Operations. IACR Cryptology ePrint Archive 2014: 6 (2014) - [i28]Helger Lipmaa:
A Simple Cast-as-Intended E-Voting Protocol by Using Secure Smart Cards. IACR Cryptology ePrint Archive 2014: 348 (2014) - [i27]Helger Lipmaa:
Almost Optimal Short Adaptive Non-Interactive Zero Knowledge. IACR Cryptology ePrint Archive 2014: 396 (2014) - [i26]Aggelos Kiayias, Nikos Leonardos, Helger Lipmaa, Kateryna Pavlyk, Qiang Tang:
Near Optimal Rate Homomorphic Encryption for Branching Programs. IACR Cryptology ePrint Archive 2014: 851 (2014) - 2013
- [j3]Helger Lipmaa, Bingsheng Zhang:
A more efficient computationally sound non-interactive zero-knowledge shuffle argument. Journal of Computer Security 21(5): 685-719 (2013) - [c46]Helger Lipmaa:
Succinct Non-Interactive Zero Knowledge Arguments from Span Programs and Linear Error-Correcting Codes. ASIACRYPT (1) 2013: 41-60 - [c45]Prastudy Fauzi, Helger Lipmaa, Bingsheng Zhang:
Efficient Modular NIZK Arguments from Shift and Product. CANS 2013: 92-121 - [c44]Bingsheng Zhang, Helger Lipmaa, Cong Wang, Kui Ren:
Practical Fully Simulatable Oblivious Transfer with Sublinear Communication. Financial Cryptography 2013: 78-95 - [c43]Helger Lipmaa, Tomas Toft:
Secure Equality and Greater-Than Tests with Sublinear Online Complexity. ICALP (2) 2013: 645-656 - [i25]Helger Lipmaa:
Succinct Non-Interactive Zero Knowledge Arguments from Span Programs and Linear Error-Correcting Codes. IACR Cryptology ePrint Archive 2013: 121 (2013) - 2012
- [c42]
- [c41]Rafik Chaabouni, Helger Lipmaa, Bingsheng Zhang:
A Non-interactive Range Proof with Constant Communication. Financial Cryptography 2012: 179-199 - [c40]Helger Lipmaa, Bingsheng Zhang:
A More Efficient Computationally Sound Non-Interactive Zero-Knowledge Shuffle Argument. SCN 2012: 477-502 - [c39]Helger Lipmaa:
Progression-Free Sets and Sublinear Pairing-Based Non-Interactive Zero-Knowledge Arguments. TCC 2012: 169-189 - [e2]Aggelos Kiayias, Helger Lipmaa:
E-Voting and Identity - Third International Conference, VoteID 2011, Tallinn, Estonia, September 28-30, 2011, Revised Selected Papers. Lecture Notes in Computer Science 7187, Springer 2012, ISBN 978-3-642-32746-9 [contents] - [i24]Helger Lipmaa, Bingsheng Zhang:
New Non-Interactive Zero-Knowledge Subset Sum, Decision Knapsack And Range Arguments. IACR Cryptology ePrint Archive 2012: 548 (2012) - 2011
- [i23]Helger Lipmaa:
Progression-Free Sets and Sublinear Pairing-Based Non-Interactive Zero-Knowledge Arguments. IACR Cryptology ePrint Archive 2011: 9 (2011) - [i22]Helger Lipmaa:
Two Simple Code-Verification Voting Protocols. IACR Cryptology ePrint Archive 2011: 317 (2011) - [i21]Helger Lipmaa, Bingsheng Zhang:
A More Efficient Computationally Sound Non-Interactive Zero-Knowledge Shuffle Argument. IACR Cryptology ePrint Archive 2011: 394 (2011) - 2010
- [c38]Rafik Chaabouni, Helger Lipmaa, Abhi Shelat:
Additive Combinatorics and Discrete Logarithm Based Range Protocols. ACISP 2010: 336-351 - [c37]
- [c36]
- [c35]Sven Heiberg, Helger Lipmaa, Filip van Laenen:
On E-Vote Integrity in the Case of Malicious Voter Computers. ESORICS 2010: 373-388 - [c34]Sven Laur, Helger Lipmaa:
On the Feasibility of Consistent Computations. Public Key Cryptography 2010: 88-106 - [c33]Jens Groth, Aggelos Kiayias, Helger Lipmaa:
Multi-query Computationally-Private Information Retrieval with Constant Communication Rate. Public Key Cryptography 2010: 107-123 - [i20]Sven Heiberg, Helger Lipmaa, Filip van Laenen:
On E-Vote Integrity in the Case of Malicious Voter Computers. IACR Cryptology ePrint Archive 2010: 195 (2010)
2000 – 2009
- 2009
- [c32]Helger Lipmaa, Bingsheng Zhang:
Efficient Generalized Selective Private Function Evaluation with Applications in Biometric Authentication. Inscrypt 2009: 154-163 - [c31]
- [c30]Arne Ansper, Sven Heiberg, Helger Lipmaa, Tom André Øverland, Filip van Laenen:
Security and Trust for the Norwegian E-Voting Pilot Project E-valg 2011. NordSec 2009: 207-222 - [i19]Helger Lipmaa:
First CPIR Protocol with Data-Dependent Computation. IACR Cryptology ePrint Archive 2009: 395 (2009) - [i18]Rafik Chaabouni, Helger Lipmaa, Abhi Shelat:
Additive Combinatorics and Discrete Logarithm Based Range Protocols. IACR Cryptology ePrint Archive 2009: 469 (2009) - 2008
- [c29]Yvo Desmedt, Helger Lipmaa, Duong Hieu Phan:
Hybrid Damgård Is CCA1-Secure under the DDH Assumption. CANS 2008: 18-30 - [c28]Giovanni Di Crescenzo, Helger Lipmaa:
Succinct NP Proofs from an Extractability Assumption. CiE 2008: 175-185 - [c27]Giovanni Di Crescenzo, Helger Lipmaa:
3-Message NP Arguments in the BPK Model with Optimal Soundness and Zero-Knowledge. ISAAC 2008: 615-627 - [c26]Helger Lipmaa:
New Communication-Efficient Oblivious Transfer Protocols Based on Pairings. ISC 2008: 441-454 - [i17]Helger Lipmaa:
Private Branching Programs: On Communication-Efficient Cryptocomputing. IACR Cryptology ePrint Archive 2008: 107 (2008) - [i16]Helger Lipmaa:
On the CCA1-Security of Elgamal and Damgård's Elgamal. IACR Cryptology ePrint Archive 2008: 234 (2008) - 2007
- [j2]Philippe Dumas, Helger Lipmaa, Johan Wallén:
Asymptotic Behaviour of a Non-commutative Rational Series with a Nonnegative Linear Representation. Discrete Mathematics & Theoretical Computer Science 9(1) (2007) - [c25]
- [i15]Helger Lipmaa:
New Communication-Efficient Oblivious Transfer Protocols Based on Pairings. IACR Cryptology ePrint Archive 2007: 133 (2007) - 2006
- [c24]Sven Laur, Helger Lipmaa, Taneli Mielikäinen:
Cryptographically private support vector machines. KDD 2006: 618-624 - [c23]Ammar Alkassar, Elena Andreeva, Helger Lipmaa:
SLC: Efficient Authenticated Encryption for Short Packages. Sicherheit 2006: 270-278 - [e1]Helger Lipmaa, Moti Yung, Dongdai Lin:
Information Security and Cryptology, Second SKLOIS Conference, Inscrypt 2006, Beijing, China, November 29 - December 1, 2006, Proceedings. Lecture Notes in Computer Science 4318, Springer 2006, ISBN 3-540-49608-4 [contents] - [i14]Sven Laur, Helger Lipmaa:
On the Feasibility of Consistent Computations. IACR Cryptology ePrint Archive 2006: 88 (2006) - [i13]Sven Laur, Helger Lipmaa, Taneli Mielikäinen:
Cryptographically Private Support Vector Machines. IACR Cryptology ePrint Archive 2006: 198 (2006) - [i12]Emilia Käsper, Sven Laur, Helger Lipmaa:
Black-Box Knowledge Extraction Revisited: Universal Approach with Precise Bounds. IACR Cryptology ePrint Archive 2006: 356 (2006) - 2005
- [c22]Edith Elkind, Helger Lipmaa:
Small Coalitions Cannot Manipulate Voting. Financial Cryptography 2005: 285-297 - [c21]Helger Lipmaa, Guilin Wang, Feng Bao:
Designated Verifier Signature Schemes: Attacks, New Security Notions and a New Construction. ICALP 2005: 459-471 - [c20]Yong Li, Helger Lipmaa, Dingyi Pei:
On Delegatability of Four Designated Verifier Signatures. ICICS 2005: 61-71 - [c19]
- [c18]Edith Elkind, Helger Lipmaa:
Hybrid Voting Protocols and Hardness of Manipulation. ISAAC 2005: 206-215 - [c17]
- [i11]Sven Laur, Helger Lipmaa:
A New Protocol for Conditional Disclosure of Secrets And Its Applications. IACR Cryptology ePrint Archive 2005: 378 (2005) - 2004
- [c16]Edith Elkind, Helger Lipmaa:
Interleaving Cryptography and Mechanism Design: The Case of Online Auctions. Financial Cryptography 2004: 117-131 - [c15]Helger Lipmaa, Johan Wallén, Philippe Dumas:
On the Additive Differential Probability of Exclusive-Or. FSE 2004: 317-331 - [c14]Bart Goethals, Sven Laur, Helger Lipmaa, Taneli Mielikäinen:
On Private Scalar Product Computation for Privacy-Preserving Data Mining. ICISC 2004: 104-120 - [c13]Andris Ambainis, Markus Jakobsson, Helger Lipmaa:
Cryptographic Randomized Response Techniques. Public Key Cryptography 2004: 425-438 - [i10]Helger Lipmaa:
An Oblivious Transfer Protocol with Log-Squared Communication. IACR Cryptology ePrint Archive 2004: 63 (2004) - 2003
- [c12]Helger Lipmaa:
On Diophantine Complexity and Statistical Zero-Knowledge Arguments. ASIACRYPT 2003: 398-415 - [c11]Helger Lipmaa:
Verifiable Homomorphic Oblivious Transfer and Private Equality Test. ASIACRYPT 2003: 416-433 - [i9]Andris Ambainis, Markus Jakobsson, Helger Lipmaa:
Cryptographic Randomized Response Techniques. CoRR cs.CC/0302025 (2003) - [i8]Edith Elkind, Helger Lipmaa:
Interleaving Cryptography and Mechanism Design: The Case of Online Auctions. IACR Cryptology ePrint Archive 2003: 21 (2003) - [i7]Andris Ambainis, Markus Jakobsson, Helger Lipmaa:
Cryptographic Randomized Response Techniques. IACR Cryptology ePrint Archive 2003: 27 (2003) - [i6]Helger Lipmaa:
On Diophantine Complexity and Statistical Zero-Knowledge Arguments. IACR Cryptology ePrint Archive 2003: 105 (2003) - 2002
- [j1]Ahto Buldas, Peeter Laud, Helger Lipmaa:
Eliminating Counterevidence with Applications to Accountable Certificate Management. Journal of Computer Security 10(3): 273-296 (2002) - [c10]Helger Lipmaa, N. Asokan, Valtteri Niemi:
Secure Vickrey Auctions without Threshold Trust. Financial Cryptography 2002: 87-101 - [c9]Helger Lipmaa:
On Differential Properties of Pseudo-Hadamard Transform and Related Mappings. INDOCRYPT 2002: 48-61 - [c8]
- [c7]
- [i5]Helger Lipmaa:
On Optimal Hash Tree Traversal for Interval Time-Stamping. IACR Cryptology ePrint Archive 2002: 124 (2002) - 2001
- [c6]Helger Lipmaa, Shiho Moriai:
Efficient Algorithms for Computing Differential Properties of Addition. FSE 2001: 336-350 - [i4]Helger Lipmaa, Shiho Moriai:
Efficient Algorithms for Computing Differential Properties of Addition. IACR Cryptology ePrint Archive 2001: 1 (2001) - [i3]Helger Lipmaa:
Statistical Zero-Knowledge Proofs from Diophantine Equations. IACR Cryptology ePrint Archive 2001: 86 (2001) - [i2]Helger Lipmaa, N. Asokan, Valtteri Niemi:
Secure Vickrey Auctions without Threshold Trust. IACR Cryptology ePrint Archive 2001: 95 (2001) - 2000
- [c5]Kazumaro Aoki, Helger Lipmaa:
Fast Implementations of AES Candidates. AES Candidate Conference 2000: 106-120 - [c4]Ahto Buldas, Peeter Laud, Helger Lipmaa:
Accountable certificate management using undeniable attestations. ACM Conference on Computer and Communications Security 2000: 9-17 - [c3]Ahto Buldas, Helger Lipmaa, Berry Schoenmakers:
Optimally Efficient Accountable Time-Stamping. Public Key Cryptography 2000: 293-305 - [i1]Ahto Buldas, Peeter Laud, Helger Lipmaa:
Accountable Certificate Management using Undeniable Attestations. IACR Cryptology ePrint Archive 2000: 27 (2000)
1990 – 1999
- 1998
- [c2]Ahto Buldas, Peeter Laud, Helger Lipmaa, Jan Willemson:
Time-Stamping with Binary Linking Schemes. CRYPTO 1998: 486-501 - [c1]Helger Lipmaa:
IDEA: A Cipher For Multimedia Architectures? Selected Areas in Cryptography 1998: 248-263
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