Please note that LibreCat no longer supports Internet Explorer versions 8 or 9 (or earlier).
We recommend upgrading to the latest Internet Explorer, Google Chrome, or Firefox.
127 Publications
2024 | Journal Article | IST-REx-ID: 14820 | 
S. Schmid, J. Svoboda, and M. X. Yeo, “Weighted packet selection for rechargeable links in cryptocurrency networks: Complexity and approximation,” Theoretical Computer Science, vol. 989. Elsevier, 2024.
[Published Version]
View
| DOI
| Download Published Version (ext.)
2024 | Conference Paper | IST-REx-ID: 15007 |
O. Alpos, I. Amores-Sesar, C. Cachin, and M. X. Yeo, “Eating sandwiches: Modular and lightweight elimination of transaction reordering attacks,” in 27th International Conference on Principles of Distributed Systems, Tokyo, Japan, 2024, vol. 286.
[Published Version]
View
| Files available
| DOI
| arXiv
2023 | Conference Paper | IST-REx-ID: 13143 |
C. Hoffmann, P. Hubáček, C. Kamath, and K. Z. Pietrzak, “Certifying giant nonprimes,” in Public-Key Cryptography - PKC 2023, Atlanta, GA, United States, 2023, vol. 13940, pp. 530–553.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
2023 | Journal Article | IST-REx-ID: 12164 |
M. A. Baig, D. Hendler, A. Milani, and C. Travers, “Long-lived counters with polylogarithmic amortized step complexity,” Distributed Computing, vol. 36. Springer Nature, pp. 29–43, 2023.
[Preprint]
View
| DOI
| Download Preprint (ext.)
| WoS
2023 | Conference Paper | IST-REx-ID: 14428 |
Y. Dodis, N. Ferguson, E. Goldin, P. Hall, and K. Z. Pietrzak, “Random oracle combiners: Breaking the concatenation barrier for collision-resistance,” in 43rd Annual International Cryptology Conference, Santa Barbara, CA, United States, 2023, vol. 14082, pp. 514–546.
[Preprint]
View
| DOI
| Download Preprint (ext.)
2023 | Conference Paper | IST-REx-ID: 14457 |
C. Hoffmann and M. Simkin, “Stronger lower bounds for leakage-resilient secret sharing,” in 8th International Conference on Cryptology and Information Security in Latin America, Quito, Ecuador, 2023, vol. 14168, pp. 215–228.
[Preprint]
View
| DOI
| Download Preprint (ext.)
2023 | Conference Paper | IST-REx-ID: 13238 |
S. Schmid, J. Svoboda, and M. X. Yeo, “Weighted packet selection for rechargeable links in cryptocurrency networks: Complexity and approximation,” in SIROCCO 2023: Structural Information and Communication Complexity , Alcala de Henares, Spain, 2023, vol. 13892, pp. 576–594.
[Preprint]
View
| Files available
| DOI
| Download Preprint (ext.)
| arXiv
2023 | Thesis | IST-REx-ID: 14506 |
M. X. Yeo, “Advances in efficiency and privacy in payment channel network analysis,” Institute of Science and Technology Austria, 2023.
[Published Version]
View
| Files available
| DOI
2023 | Conference Paper | IST-REx-ID: 14490 |
Z. Avarikioti, T. Lizurej, T. Michalak, and M. X. Yeo, “Lightning creation games,” in 43rd International Conference on Distributed Computing Systems, Hong Kong, China, 2023, vol. 2023, pp. 603–613.
[Preprint]
View
| Files available
| DOI
| Download Preprint (ext.)
| arXiv
2023 | Conference Paper | IST-REx-ID: 14693 |
C. Hoffmann, P. Hubáček, C. Kamath, and T. Krňák, “(Verifiable) delay functions from Lucas sequences,” in 21st International Conference on Theory of Cryptography, Taipei, Taiwan, 2023, vol. 14372, pp. 336–362.
[Preprint]
View
| DOI
| Download Preprint (ext.)
2023 | Conference Paper | IST-REx-ID: 14691 |
B. Auerbach, M. Cueto Noval, G. Pascual Perez, and K. Z. Pietrzak, “On the cost of post-compromise security in concurrent Continuous Group-Key Agreement,” in 21st International Conference on Theory of Cryptography, Taipei, Taiwan, 2023, vol. 14371, pp. 271–300.
[Preprint]
View
| DOI
| Download Preprint (ext.)
2023 | Conference Paper | IST-REx-ID: 14692 |
B. Auerbach, C. Hoffmann, and G. Pascual Perez, “Generic-group lower bounds via reductions between geometric-search problems: With and without preprocessing,” in 21st International Conference on Theory of Cryptography, 2023, vol. 14371, pp. 301–330.
[Preprint]
View
| DOI
| Download Preprint (ext.)
2023 | Conference Paper | IST-REx-ID: 14736
M. Bastankhah, K. Chatterjee, M. A. Maddah-Ali, S. Schmid, J. Svoboda, and M. X. Yeo, “R2: Boosting liquidity in payment channel networks with online admission control,” in 27th International Conference on Financial Cryptography and Data Security, Bol, Brac, Croatia, 2023, vol. 13950, pp. 309–325.
View
| DOI
2022 | Conference Paper | IST-REx-ID: 11476 |
J. Alwen et al., “CoCoA: Concurrent continuous group key agreement,” in Advances in Cryptology – EUROCRYPT 2022, Trondheim, Norway, 2022, vol. 13276, pp. 815–844.
[Preprint]
View
| DOI
| Download Preprint (ext.)
| WoS
2022 | Conference Paper | IST-REx-ID: 12516 |
A. Bogdanov, M. Cueto Noval, C. Hoffmann, and A. Rosen, “Public-Key Encryption from Homogeneous CLWE,” in Theory of Cryptography, Chicago, IL, United States, 2022, vol. 13748, pp. 565–592.
[Preprint]
View
| DOI
| Download Preprint (ext.)
| WoS
2022 | Conference Paper | IST-REx-ID: 12167 |
G. Avarikioti, K. Z. Pietrzak, I. Salem, S. Schmid, S. Tiwari, and M. X. Yeo, “Hide & Seek: Privacy-preserving rebalancing on payment channel networks,” in Financial Cryptography and Data Security, Grenada, 2022, vol. 13411, pp. 358–373.
[Preprint]
View
| DOI
| Download Preprint (ext.)
| arXiv
2022 | Conference Paper | IST-REx-ID: 12176 |
C. Hoffmann, P. Hubáček, C. Kamath, K. Klein, and K. Z. Pietrzak, “Practical statistically-sound proofs of exponentiation in any group,” in Advances in Cryptology – CRYPTO 2022, Santa Barbara, CA, United States, 2022, vol. 13508, pp. 370–399.
[Preprint]
View
| DOI
| Download Preprint (ext.)
| WoS
2021 | Conference Paper | IST-REx-ID: 9466 |
M. Walter, “The convergence of slide-type reductions,” in Public-Key Cryptography – PKC 2021, Virtual, 2021, vol. 12710, pp. 45–67.
[Published Version]
View
| Files available
| DOI
2021 | Conference Paper | IST-REx-ID: 9826 |
B. Auerbach et al., “Inverse-Sybil attacks in automated contact tracing,” in Topics in Cryptology – CT-RSA 2021, Virtual Event, 2021, vol. 12704, pp. 399–421.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
2021 | Conference Paper | IST-REx-ID: 9825 |
T. Laarhoven and M. Walter, “Dual lattice attacks for closest vector problems (with preprocessing),” in Topics in Cryptology – CT-RSA 2021, Virtual Event, 2021, vol. 12704, pp. 478–502.
[Preprint]
View
| DOI
| Download Preprint (ext.)
2021 | Conference Paper | IST-REx-ID: 10407 |
S. Chakraborty, S. Dziembowski, M. Gałązka, T. Lizurej, K. Z. Pietrzak, and M. X. Yeo, “Trojan-resilience without cryptography,” presented at the TCC: Theory of Cryptography Conference, Raleigh, NC, United States, 2021, vol. 13043, pp. 397–428.
[Preprint]
View
| DOI
| Download Preprint (ext.)
| WoS
2021 | Conference Paper | IST-REx-ID: 10408 |
J. F. Alwen et al., “Grafting key trees: Efficient key management for overlapping groups,” in 19th International Conference, Raleigh, NC, United States, 2021, vol. 13044, pp. 222–253.
[Preprint]
View
| DOI
| Download Preprint (ext.)
| WoS
2021 | Conference Paper | IST-REx-ID: 10409 |
C. Kamath Hosdurg, K. Klein, and K. Z. Pietrzak, “On treewidth, separators and Yao’s garbling,” in 19th International Conference, Raleigh, NC, United States, 2021, vol. 13043, pp. 486–517.
[Preprint]
View
| Files available
| DOI
| Download Preprint (ext.)
| WoS
2021 | Conference Paper | IST-REx-ID: 10609 |
S. Chakraborty, C. Ganesh, M. Pancholi, and P. Sarkar, “Reverse firewalls for adaptively secure MPC without setup,” in 27th International Conference on the Theory and Application of Cryptology and Information Security, Virtual, Singapore, 2021, vol. 13091, pp. 335–364.
[Preprint]
View
| DOI
| Download Preprint (ext.)
| WoS
2021 | Conference Paper | IST-REx-ID: 10041 |
C. Kamath Hosdurg, K. Klein, K. Z. Pietrzak, and D. Wichs, “Limits on the Adaptive Security of Yao’s Garbling,” in 41st Annual International Cryptology Conference, Part II , Virtual, 2021, vol. 12826, pp. 486–515.
[Preprint]
View
| Files available
| DOI
| Download Preprint (ext.)
2021 | Conference Paper | IST-REx-ID: 10049 |
K. Klein et al., “Keep the dirt: tainted TreeKEM, adaptively and actively secure continuous group key agreement,” in 2021 IEEE Symposium on Security and Privacy , San Francisco, CA, United States, 2021, pp. 268–284.
[Preprint]
View
| Files available
| DOI
| Download Preprint (ext.)
2021 | Conference Paper | IST-REx-ID: 10044 |
C. Kamath Hosdurg, K. Klein, and K. Z. Pietrzak, “On treewidth, separators and Yao’s garbling,” in 19th Theory of Cryptography Conference 2021, Raleigh, NC, United States, 2021.
[Preprint]
View
| Files available
| Download Preprint (ext.)
2021 | Thesis | IST-REx-ID: 10035 |
K. Klein, “On the adaptive security of graph-based games,” Institute of Science and Technology Austria, 2021.
[Published Version]
View
| Files available
| DOI
2021 | Conference Paper | IST-REx-ID: 10410 |
C. Kamath Hosdurg, K. Klein, K. Z. Pietrzak, and M. Walter, “The cost of adaptivity in security games on graphs,” in 19th International Conference, Raleigh, NC, United States, 2021, vol. 13043, pp. 550–581.
[Preprint]
View
| Files available
| DOI
| Download Preprint (ext.)
| WoS
2021 | Conference Paper | IST-REx-ID: 10048 |
C. Kamath Hosdurg, K. Klein, K. Z. Pietrzak, and M. Walter, “The cost of adaptivity in security games on graphs,” in 19th Theory of Cryptography Conference 2021, Raleigh, NC, United States, 2021.
[Preprint]
View
| Files available
| Download Preprint (ext.)
2021 | Conference Paper | IST-REx-ID: 9969 |
K. Z. Pietrzak, I. Salem, S. Schmid, and M. X. Yeo, “LightPIR: Privacy-preserving route discovery for payment channel networks,” presented at the 2021 IFIP Networking Conference (IFIP Networking), Espoo and Helsinki, Finland, 2021.
[Submitted Version]
View
| Files available
| DOI
| Download Submitted Version (ext.)
| WoS
| arXiv
2020 | Conference Paper | IST-REx-ID: 8322 |
S. Chakraborty, S. Dziembowski, and J. B. Nielsen, “Reverse firewalls for actively secure MPCs,” in Advances in Cryptology – CRYPTO 2020, Santa Barbara, CA, United States, 2020, vol. 12171, pp. 732–762.
[Preprint]
View
| DOI
| Download Preprint (ext.)
2020 | Conference Paper | IST-REx-ID: 8339 |
N. Genise, D. Micciancio, C. Peikert, and M. Walter, “Improved discrete Gaussian and subgaussian analysis for lattice cryptography,” in 23rd IACR International Conference on the Practice and Theory of Public-Key Cryptography, Edinburgh, United Kingdom, 2020, vol. 12110, pp. 623–651.
[Preprint]
View
| DOI
| Download Preprint (ext.)
2020 | Conference Paper | IST-REx-ID: 8987 |
K. Z. Pietrzak, “Delayed authentication: Preventing replay and relay attacks in private contact tracing,” in Progress in Cryptology, Bangalore, India, 2020, vol. 12578, pp. 3–15.
[Preprint]
View
| DOI
| Download Preprint (ext.)
| WoS
2020 | Conference Paper | IST-REx-ID: 7966 |
B. Auerbach, F. Giacon, and E. Kiltz, “Everybody’s a target: Scalability in public-key encryption,” in Advances in Cryptology – EUROCRYPT 2020, 2020, vol. 12107, pp. 475–506.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
| WoS
2020 | Thesis | IST-REx-ID: 7896 |
C. Kamath Hosdurg, “On the average-case hardness of total search problems,” Institute of Science and Technology Austria, 2020.
[Published Version]
View
| Files available
| DOI
2019 | Journal Article | IST-REx-ID: 5887 |
G. Demay, P. Gazi, U. Maurer, and B. Tackmann, “Per-session security: Password-based cryptography revisited,” Journal of Computer Security, vol. 27, no. 1. IOS Press, pp. 75–111, 2019.
[Preprint]
View
| DOI
| Download Preprint (ext.)
2019 | Conference Paper | IST-REx-ID: 6528 |
K. Z. Pietrzak, “Simple verifiable delay functions,” in 10th Innovations in Theoretical Computer Science Conference, San Diego, CA, United States, 2019, vol. 124.
[Published Version]
View
| Files available
| DOI
| Download Published Version (ext.)
2019 | Book Chapter | IST-REx-ID: 6726 |
M. Walter, “Sampling the integers with low relative error,” in Progress in Cryptology – AFRICACRYPT 2019, vol. 11627, J. Buchmann, A. Nitaj, and T. Rachidi, Eds. Cham: Springer Nature, 2019, pp. 157–180.
[Preprint]
View
| DOI
| Download Preprint (ext.)
2019 | Conference Paper | IST-REx-ID: 7136 |
M. Skórski, “Strong chain rules for min-entropy under few bits spoiled,” in 2019 IEEE International Symposium on Information Theory, Paris, France, 2019.
[Preprint]
View
| DOI
| Download Preprint (ext.)
| WoS
| arXiv
2019 | Conference Paper | IST-REx-ID: 7411 |
H. M. Abusalah, C. Kamath Hosdurg, K. Klein, K. Z. Pietrzak, and M. Walter, “Reversible proofs of sequential work,” in Advances in Cryptology – EUROCRYPT 2019, Darmstadt, Germany, 2019, vol. 11477, pp. 277–291.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
| WoS
2019 | Conference Paper | IST-REx-ID: 6677 |
A. R. Choudhuri, P. Hubáček, C. Kamath Hosdurg, K. Z. Pietrzak, A. Rosen, and G. N. Rothblum, “Finding a Nash equilibrium is no easier than breaking Fiat-Shamir,” in Proceedings of the 51st Annual ACM SIGACT Symposium on Theory of Computing - STOC 2019, Phoenix, AZ, United States, 2019, pp. 1103–1114.
[Preprint]
View
| Files available
| DOI
| Download Preprint (ext.)
| WoS
2019 | Conference Paper | IST-REx-ID: 6430 |
G. Fuchsbauer, C. Kamath Hosdurg, K. Klein, and K. Z. Pietrzak, “Adaptively secure proxy re-encryption,” presented at the PKC: Public-Key Cryptograhy, Beijing, China, 2019, vol. 11443, pp. 317–346.
[Preprint]
View
| Files available
| DOI
| Download Preprint (ext.)
2018 | Journal Article | IST-REx-ID: 10286 |
E. N. Allini, M. Skórski, O. Petura, F. Bernard, M. Laban, and V. Fischer, “Evaluation and monitoring of free running oscillators serving as source of randomness,” IACR Transactions on Cryptographic Hardware and Embedded Systems, vol. 2018, no. 3. International Association for Cryptologic Research, pp. 214–242, 2018.
[Published Version]
View
| Files available
| DOI
2018 | Conference Paper | IST-REx-ID: 7407 |
K. Z. Pietrzak, “Proofs of catalytic space,” in 10th Innovations in Theoretical Computer Science Conference (ITCS 2019), San Diego, CA, United States, 2018, vol. 124, p. 59:1-59:25.
[Published Version]
View
| Files available
| DOI
| Download Published Version (ext.)
2018 | Thesis | IST-REx-ID: 83 |
H. M. Abusalah, “Proof systems for sustainable decentralized cryptocurrencies,” Institute of Science and Technology Austria, 2018.
[Published Version]
View
| Files available
| DOI
2018 | Conference Paper | IST-REx-ID: 108 |
M. Obremski and M. Skórski, “Inverted leftover hash lemma,” presented at the ISIT: International Symposium on Information Theory, Vail, CO, USA, 2018, vol. 2018.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
| WoS
2018 | Journal Article | IST-REx-ID: 107 |
S. Dziembowski, K. Z. Pietrzak, and D. Wichs, “Non-malleable codes,” Journal of the ACM, vol. 65, no. 4. ACM, 2018.
[Preprint]
View
| DOI
| Download Preprint (ext.)
| WoS
2018 | Conference Paper | IST-REx-ID: 193 |
J. F. Alwen et al., “On the memory hardness of data independent password hashing functions,” in Proceedings of the 2018 on Asia Conference on Computer and Communication Security, Incheon, Republic of Korea, 2018, pp. 51–65.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
| WoS
2018 | Conference Paper | IST-REx-ID: 300 |
D. Micciancio and M. Walter, “On the bit security of cryptographic primitives,” presented at the Eurocrypt: Advances in Cryptology, Tel Aviv, Israel, 2018, vol. 10820, pp. 3–28.
[Submitted Version]
View
| DOI
| Download Submitted Version (ext.)
| WoS