Teaching Old Crypto New Tricks
Project Period: 2016-04-01 – 2021-03-31
Externally Funded
Acronym
TOCNeT
Principal Investigator
Krzysztof Z Pietrzak
Department(s)
Pietrzak Group
Grant Number
682815
Funding Organisation
EC/H2020
48 Publications
2021 | Conference Paper | IST-REx-ID: 10041 | 
Limits on the Adaptive Security of Yao’s Garbling
C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, D. Wichs, in:, 41st Annual International Cryptology Conference, Part II , Springer Nature, Cham, 2021, pp. 486–515.
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C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, D. Wichs, in:, 41st Annual International Cryptology Conference, Part II , Springer Nature, Cham, 2021, pp. 486–515.
2021 | Conference Paper | IST-REx-ID: 10049 |
Keep the dirt: tainted TreeKEM, adaptively and actively secure continuous group key agreement
K. Klein, G. Pascual Perez, M. Walter, C. Kamath Hosdurg, M. Capretto, M. Cueto Noval, I. Markov, M.X. Yeo, J.F. Alwen, K.Z. Pietrzak, in:, 2021 IEEE Symposium on Security and Privacy , IEEE, 2021, pp. 268–284.
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K. Klein, G. Pascual Perez, M. Walter, C. Kamath Hosdurg, M. Capretto, M. Cueto Noval, I. Markov, M.X. Yeo, J.F. Alwen, K.Z. Pietrzak, in:, 2021 IEEE Symposium on Security and Privacy , IEEE, 2021, pp. 268–284.
2021 | Conference Paper | IST-REx-ID: 10408 |
Grafting key trees: Efficient key management for overlapping groups
J.F. Alwen, B. Auerbach, M.A. Baig, M. Cueto Noval, K. Klein, G. Pascual Perez, K.Z. Pietrzak, M. Walter, in:, 19th International Conference, Springer Nature, 2021, pp. 222–253.
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J.F. Alwen, B. Auerbach, M.A. Baig, M. Cueto Noval, K. Klein, G. Pascual Perez, K.Z. Pietrzak, M. Walter, in:, 19th International Conference, Springer Nature, 2021, pp. 222–253.
2021 | Conference Paper | IST-REx-ID: 10407 |
Trojan-resilience without cryptography
S. Chakraborty, S. Dziembowski, M. Gałązka, T. Lizurej, K.Z. Pietrzak, M.X. Yeo, in:, Springer Nature, 2021, pp. 397–428.
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S. Chakraborty, S. Dziembowski, M. Gałązka, T. Lizurej, K.Z. Pietrzak, M.X. Yeo, in:, Springer Nature, 2021, pp. 397–428.
2021 | Conference Paper | IST-REx-ID: 10409 |
On treewidth, separators and Yao’s garbling
C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, in:, 19th International Conference, Springer Nature, 2021, pp. 486–517.
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C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, in:, 19th International Conference, Springer Nature, 2021, pp. 486–517.
2021 | Conference Paper | IST-REx-ID: 10044 |
On treewidth, separators and Yao's garbling
C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, in:, 19th Theory of Cryptography Conference 2021, International Association for Cryptologic Research, 2021.
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C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, in:, 19th Theory of Cryptography Conference 2021, International Association for Cryptologic Research, 2021.
2021 | Conference Paper | IST-REx-ID: 10410 |
The cost of adaptivity in security games on graphs
C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, M. Walter, in:, 19th International Conference, Springer Nature, 2021, pp. 550–581.
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C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, M. Walter, in:, 19th International Conference, Springer Nature, 2021, pp. 550–581.
2021 | Conference Paper | IST-REx-ID: 10609 |
Reverse firewalls for adaptively secure MPC without setup
S. Chakraborty, C. Ganesh, M. Pancholi, P. Sarkar, in:, 27th International Conference on the Theory and Application of Cryptology and Information Security, Springer Nature, 2021, pp. 335–364.
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S. Chakraborty, C. Ganesh, M. Pancholi, P. Sarkar, in:, 27th International Conference on the Theory and Application of Cryptology and Information Security, Springer Nature, 2021, pp. 335–364.
2018 | Journal Article | IST-REx-ID: 107 |
Non-malleable codes
S. Dziembowski, K.Z. Pietrzak, D. Wichs, Journal of the ACM 65 (2018).
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S. Dziembowski, K.Z. Pietrzak, D. Wichs, Journal of the ACM 65 (2018).
2022 | Conference Paper | IST-REx-ID: 11476 |
CoCoA: Concurrent continuous group key agreement
J. Alwen, B. Auerbach, M. Cueto Noval, K. Klein, G. Pascual Perez, K.Z. Pietrzak, M. Walter, in:, Advances in Cryptology – EUROCRYPT 2022, Springer Nature, Cham, 2022, pp. 815–844.
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J. Alwen, B. Auerbach, M. Cueto Noval, K. Klein, G. Pascual Perez, K.Z. Pietrzak, M. Walter, in:, Advances in Cryptology – EUROCRYPT 2022, Springer Nature, Cham, 2022, pp. 815–844.
2017 | Conference Paper | IST-REx-ID: 1174 |
Lower bounds on key derivation for square-friendly applications
M. Skórski, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017.
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M. Skórski, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017.
2016 | Conference Paper | IST-REx-ID: 1179 |
Pseudoentropy: Lower-bounds for chain rules and transformations
K.Z. Pietrzak, S. Maciej, in:, Springer, 2016, pp. 183–203.
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K.Z. Pietrzak, S. Maciej, in:, Springer, 2016, pp. 183–203.
2016 | Conference Paper | IST-REx-ID: 1225 |
Practical round-optimal blind signatures in the standard model from weaker assumptions
G. Fuchsbauer, C. Hanser, C. Kamath Hosdurg, D. Slamanig, in:, Springer, 2016, pp. 391–408.
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G. Fuchsbauer, C. Hanser, C. Kamath Hosdurg, D. Slamanig, in:, Springer, 2016, pp. 391–408.
2018 | Conference Paper | IST-REx-ID: 193 |
On the memory hardness of data independent password hashing functions
J.F. Alwen, P. Gazi, C. Kamath Hosdurg, K. Klein, G.F. Osang, K.Z. Pietrzak, L. Reyzin, M. Rolinek, M. Rybar, in:, Proceedings of the 2018 on Asia Conference on Computer and Communication Security, ACM, 2018, pp. 51–65.
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J.F. Alwen, P. Gazi, C. Kamath Hosdurg, K. Klein, G.F. Osang, K.Z. Pietrzak, L. Reyzin, M. Rolinek, M. Rybar, in:, Proceedings of the 2018 on Asia Conference on Computer and Communication Security, ACM, 2018, pp. 51–65.
2018 | Conference Paper | IST-REx-ID: 298 |
Sustained space complexity
J.F. Alwen, J. Blocki, K.Z. Pietrzak, in:, Springer, 2018, pp. 99–130.
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| arXiv
J.F. Alwen, J. Blocki, K.Z. Pietrzak, in:, Springer, 2018, pp. 99–130.
2018 | Conference Paper | IST-REx-ID: 300 |
On the bit security of cryptographic primitives
D. Micciancio, M. Walter, in:, Springer, 2018, pp. 3–28.
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D. Micciancio, M. Walter, in:, Springer, 2018, pp. 3–28.
2018 | Conference Paper | IST-REx-ID: 302 |
Simple proofs of sequential work
B. Cohen, K.Z. Pietrzak, in:, Springer, 2018, pp. 451–467.
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B. Cohen, K.Z. Pietrzak, in:, Springer, 2018, pp. 451–467.
2017 | Journal Article | IST-REx-ID: 1187 |
Efficient authentication from hard learning problems
E. Kiltz, K.Z. Pietrzak, D. Venturi, D. Cash, A. Jain, Journal of Cryptology 30 (2017) 1238–1275.
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E. Kiltz, K.Z. Pietrzak, D. Venturi, D. Cash, A. Jain, Journal of Cryptology 30 (2017) 1238–1275.
2019 | Journal Article | IST-REx-ID: 5887 |
Per-session security: Password-based cryptography revisited
G. Demay, P. Gazi, U. Maurer, B. Tackmann, Journal of Computer Security 27 (2019) 75–111.
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G. Demay, P. Gazi, U. Maurer, B. Tackmann, Journal of Computer Security 27 (2019) 75–111.
2017 | Conference Paper | IST-REx-ID: 605 |
Position based cryptography and multiparty communication complexity
J. Brody, S. Dziembowski, S. Faust, K.Z. Pietrzak, in:, Y. Kalai, L. Reyzin (Eds.), Springer, 2017, pp. 56–81.
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J. Brody, S. Dziembowski, S. Faust, K.Z. Pietrzak, in:, Y. Kalai, L. Reyzin (Eds.), Springer, 2017, pp. 56–81.
2017 | Conference Paper | IST-REx-ID: 635 |
Scrypt is maximally memory hard
J.F. Alwen, B. Chen, K.Z. Pietrzak, L. Reyzin, S. Tessaro, in:, J.-S. Coron, J. Buus Nielsen (Eds.), Springer, 2017, pp. 33–62.
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J.F. Alwen, B. Chen, K.Z. Pietrzak, L. Reyzin, S. Tessaro, in:, J.-S. Coron, J. Buus Nielsen (Eds.), Springer, 2017, pp. 33–62.
2017 | Conference Paper | IST-REx-ID: 637 |
Be adaptive avoid overcommitting
Z. Jafargholi, C. Kamath Hosdurg, K. Klein, I. Komargodski, K.Z. Pietrzak, D. Wichs, in:, J. Katz, H. Shacham (Eds.), Springer, 2017, pp. 133–163.
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Z. Jafargholi, C. Kamath Hosdurg, K. Klein, I. Komargodski, K.Z. Pietrzak, D. Wichs, in:, J. Katz, H. Shacham (Eds.), Springer, 2017, pp. 133–163.
2017 | Conference Paper | IST-REx-ID: 640 |
Depth-robust graphs and their cumulative memory complexity
J.F. Alwen, J. Blocki, K.Z. Pietrzak, in:, J.-S. Coron, J. Buus Nielsen (Eds.), Springer, 2017, pp. 3–32.
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J.F. Alwen, J. Blocki, K.Z. Pietrzak, in:, J.-S. Coron, J. Buus Nielsen (Eds.), Springer, 2017, pp. 3–32.
2021 | Thesis | IST-REx-ID: 10035 |
On the adaptive security of graph-based games
K. Klein, On the Adaptive Security of Graph-Based Games, IST Austria, 2021.
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K. Klein, On the Adaptive Security of Graph-Based Games, IST Austria, 2021.
2019 | Conference Paper | IST-REx-ID: 6430 |
Adaptively secure proxy re-encryption
G. Fuchsbauer, C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, in:, Springer Nature, 2019, pp. 317–346.
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G. Fuchsbauer, C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, in:, Springer Nature, 2019, pp. 317–346.
2019 | Conference Paper | IST-REx-ID: 6528 |
Simple verifiable delay functions
K.Z. Pietrzak, in:, 10th Innovations in Theoretical Computer Science Conference, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019.
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K.Z. Pietrzak, in:, 10th Innovations in Theoretical Computer Science Conference, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019.
2017 | Conference Paper | IST-REx-ID: 6527 |
Practical graphs for optimal side-channel resistant memory-hard functions
J.F. Alwen, J. Blocki, B. Harsha, in:, Proceedings of the 2017 ACM SIGSAC Conference on Computer and Communications Security, ACM Press, 2017, pp. 1001–1017.
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J.F. Alwen, J. Blocki, B. Harsha, in:, Proceedings of the 2017 ACM SIGSAC Conference on Computer and Communications Security, ACM Press, 2017, pp. 1001–1017.
2017 | Conference Paper | IST-REx-ID: 6526 |
On the complexity of estimating Rènyi divergences
M. Skórski, in:, 2017 IEEE International Symposium on Information Theory (ISIT), IEEE, 2017.
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| arXiv
M. Skórski, in:, 2017 IEEE International Symposium on Information Theory (ISIT), IEEE, 2017.
2019 | Book Chapter | IST-REx-ID: 6726 |
Sampling the integers with low relative error
M. Walter, in:, J. Buchmann, A. Nitaj, T. Rachidi (Eds.), Progress in Cryptology – AFRICACRYPT 2019, Springer Nature, Cham, 2019, pp. 157–180.
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M. Walter, in:, J. Buchmann, A. Nitaj, T. Rachidi (Eds.), Progress in Cryptology – AFRICACRYPT 2019, Springer Nature, Cham, 2019, pp. 157–180.
2018 | Conference Paper | IST-REx-ID: 6941 |
SpaceMint: A cryptocurrency based on proofs of space
S. Park, A. Kwon, G. Fuchsbauer, P. Gazi, J.F. Alwen, K.Z. Pietrzak, in:, 22nd International Conference on Financial Cryptography and Data Security, Springer Nature, 2018, pp. 480–499.
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S. Park, A. Kwon, G. Fuchsbauer, P. Gazi, J.F. Alwen, K.Z. Pietrzak, in:, 22nd International Conference on Financial Cryptography and Data Security, Springer Nature, 2018, pp. 480–499.
2017 | Conference Paper | IST-REx-ID: 697 |
Non uniform attacks against pseudoentropy
K.Z. Pietrzak, M. Skórski, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017.
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K.Z. Pietrzak, M. Skórski, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017.
2017 | Conference Paper | IST-REx-ID: 710 |
Renyi entropy estimation revisited
M. Obremski, M. Skórski, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017.
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M. Obremski, M. Skórski, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017.
2018 | Conference Paper | IST-REx-ID: 7407 |
Proofs of catalytic space
K.Z. Pietrzak, in:, 10th Innovations in Theoretical Computer Science Conference (ITCS 2019), Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018, p. 59:1-59:25.
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K.Z. Pietrzak, in:, 10th Innovations in Theoretical Computer Science Conference (ITCS 2019), Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018, p. 59:1-59:25.
2019 | Conference Paper | IST-REx-ID: 7411 |
Reversible proofs of sequential work
H.M. Abusalah, C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, M. Walter, in:, Advances in Cryptology – EUROCRYPT 2019, Springer International Publishing, 2019, pp. 277–291.
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H.M. Abusalah, C. Kamath Hosdurg, K. Klein, K.Z. Pietrzak, M. Walter, in:, Advances in Cryptology – EUROCRYPT 2019, Springer International Publishing, 2019, pp. 277–291.
2020 | Thesis | IST-REx-ID: 7896 |
On the average-case hardness of total search problems
C. Kamath Hosdurg, On the Average-Case Hardness of Total Search Problems, IST Austria, 2020.
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C. Kamath Hosdurg, On the Average-Case Hardness of Total Search Problems, IST Austria, 2020.
2019 | Conference Paper | IST-REx-ID: 6677 |
Finding a Nash equilibrium is no easier than breaking Fiat-Shamir
A.R. Choudhuri, P. Hubáček, C. Kamath Hosdurg, K.Z. Pietrzak, A. Rosen, G.N. Rothblum, in:, Proceedings of the 51st Annual ACM SIGACT Symposium on Theory of Computing - STOC 2019, ACM Press, 2019, pp. 1103–1114.
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A.R. Choudhuri, P. Hubáček, C. Kamath Hosdurg, K.Z. Pietrzak, A. Rosen, G.N. Rothblum, in:, Proceedings of the 51st Annual ACM SIGACT Symposium on Theory of Computing - STOC 2019, ACM Press, 2019, pp. 1103–1114.
2020 | Conference Paper | IST-REx-ID: 7966 |
Everybody’s a target: Scalability in public-key encryption
B. Auerbach, F. Giacon, E. Kiltz, in:, Advances in Cryptology – EUROCRYPT 2020, Springer Nature, 2020, pp. 475–506.
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B. Auerbach, F. Giacon, E. Kiltz, in:, Advances in Cryptology – EUROCRYPT 2020, Springer Nature, 2020, pp. 475–506.
2016 | Conference Paper | IST-REx-ID: 1229 |
Offline witness encryption
H.M. Abusalah, G. Fuchsbauer, K.Z. Pietrzak, in:, Springer, 2016, pp. 285–303.
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H.M. Abusalah, G. Fuchsbauer, K.Z. Pietrzak, in:, Springer, 2016, pp. 285–303.
2018 | Thesis | IST-REx-ID: 83 |
Proof systems for sustainable decentralized cryptocurrencies
H.M. Abusalah, Proof Systems for Sustainable Decentralized Cryptocurrencies, IST Austria, 2018.
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H.M. Abusalah, Proof Systems for Sustainable Decentralized Cryptocurrencies, IST Austria, 2018.
2017 | Conference Paper | IST-REx-ID: 559 |
Beyond Hellman’s time-memory trade-offs with applications to proofs of space
H.M. Abusalah, J.F. Alwen, B. Cohen, D. Khilko, K.Z. Pietrzak, L. Reyzin, in:, Springer, 2017, pp. 357–379.
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H.M. Abusalah, J.F. Alwen, B. Cohen, D. Khilko, K.Z. Pietrzak, L. Reyzin, in:, Springer, 2017, pp. 357–379.
2016 | Conference Paper | IST-REx-ID: 1235 |
Constrained PRFs for unbounded inputs with short keys
H.M. Abusalah, G. Fuchsbauer, in:, Springer, 2016, pp. 445–463.
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H.M. Abusalah, G. Fuchsbauer, in:, Springer, 2016, pp. 445–463.
2020 | Conference Paper | IST-REx-ID: 8322 |
Reverse firewalls for actively secure MPCs
S. Chakraborty, S. Dziembowski, J.B. Nielsen, in:, Advances in Cryptology – CRYPTO 2020, Springer Nature, 2020, pp. 732–762.
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S. Chakraborty, S. Dziembowski, J.B. Nielsen, in:, Advances in Cryptology – CRYPTO 2020, Springer Nature, 2020, pp. 732–762.
2020 | Conference Paper | IST-REx-ID: 8339 |
Improved discrete Gaussian and subgaussian analysis for lattice cryptography
N. Genise, D. Micciancio, C. Peikert, M. Walter, in:, 23rd IACR International Conference on the Practice and Theory of Public-Key Cryptography, Springer Nature, 2020, pp. 623–651.
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N. Genise, D. Micciancio, C. Peikert, M. Walter, in:, 23rd IACR International Conference on the Practice and Theory of Public-Key Cryptography, Springer Nature, 2020, pp. 623–651.
2017 | Journal Article | IST-REx-ID: 6196 |
The exact security of PMAC
P. Gazi, K.Z. Pietrzak, M. Rybar, IACR Transactions on Symmetric Cryptology 2016 (2017) 145–161.
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P. Gazi, K.Z. Pietrzak, M. Rybar, IACR Transactions on Symmetric Cryptology 2016 (2017) 145–161.
2020 | Conference Paper | IST-REx-ID: 8987 |
Delayed authentication: Preventing replay and relay attacks in private contact tracing
K.Z. Pietrzak, in:, Progress in Cryptology, Springer Nature, 2020, pp. 3–15.
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K.Z. Pietrzak, in:, Progress in Cryptology, Springer Nature, 2020, pp. 3–15.
2021 | Conference Paper | IST-REx-ID: 9466 |
The convergence of slide-type reductions
M. Walter, in:, Public-Key Cryptography – PKC 2021, Springer Nature, 2021, pp. 45–67.
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M. Walter, in:, Public-Key Cryptography – PKC 2021, Springer Nature, 2021, pp. 45–67.
2021 | Conference Paper | IST-REx-ID: 9826 |
Inverse-Sybil attacks in automated contact tracing
B. Auerbach, S. Chakraborty, K. Klein, G. Pascual Perez, K.Z. Pietrzak, M. Walter, M.X. Yeo, in:, Topics in Cryptology – CT-RSA 2021, Springer Nature, 2021, pp. 399–421.
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B. Auerbach, S. Chakraborty, K. Klein, G. Pascual Perez, K.Z. Pietrzak, M. Walter, M.X. Yeo, in:, Topics in Cryptology – CT-RSA 2021, Springer Nature, 2021, pp. 399–421.
2021 | Conference Paper | IST-REx-ID: 9969 |
LightPIR: Privacy-preserving route discovery for payment channel networks
K.Z. Pietrzak, I. Salem, S. Schmid, M.X. Yeo, in:, IEEE, 2021.
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| arXiv
K.Z. Pietrzak, I. Salem, S. Schmid, M.X. Yeo, in:, IEEE, 2021.