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Books:

Journal Publications:

  1. C. Hazay, M. Venkitasubramaniam and M. Weiss. Protecting Distributed Primitives against Leakage: Equivocal Secret Sharing and More. J. Cryptol. 38(1): 1(2025).
  2. C. Hazay, M. Venkitasubramaniam and M Weiss. The Price of Active Security in Cryptographic Protocols. J. Cryptol. 37(3): 30(2024).
  3. S. Ames, C. Hazay, Y. Ishai and M. Venkitasubramaniam. Ligero: lightweight sublinear arguments without a trusted setup. Des. Codes Cryptogr. 91(11): 3379-3424 (2023).
  4. C. Hazay, Y. Ishai and M. Venkitasubramaniam. Actively Secure Garbled Circuits with Constant Communication Overhead in the Plain Model. J. Cryptol. 36(3): 26 (2023).
  5. I. Levi and C. Hazay. Garbled circuits from an SCA perspective free XOR can be quite expensive. IACR Trans. Cryptogr. Hardw. Embed. Syst., 2023(2), 54–79.
  6. D. Gordon, C. Hazay and Le, P. H. Fully secure PSI via MPC-in-the-head. Proc. Priv. Enhancing Technol, 2022(3), 291–313 (2022).
  7. C. Hazay and M. Lilintal. Gradual GRAM and Secure Computation for RAM Programs. In the Journal of Computer Security, 30(1), 197–229 (2022).
  8. C. Hazay, E. Orsini, P. Scholl and E. Soria-Vazquez. TinyKeys: A New Approach to Efficient Multi-Party Computation. In the Journal of Cryptology, 35(2): 13 (2022).
  9. C. Hazay, M. Venkitasubramaniam and M. Weiss. ZK-PCPs from Leakage-Resilient Secret Sharing. In the Journal of Cryptology, 34(3): 23 (2021).
  10. S. Halevi, C. Hazay, A. Polychroniadou and M. Venkitasubramaniam. Round-Optimal Secure Multi-Party Computation. In the Journal of Cryptology, 35(4): 19 (2022).
  11. C. Hazay, P. Scholl and E. Soria-Vazquez. Low Cost Constant Round MPC Combining BMR and Oblivious Transfer. In the Journal of Cryptology, 33(4): 1732--1786 (2020).
  12. C. Hazay and M. Venkitasubramaniam. On the Power of Secure Two-Party Computation. In the Journal of Cryptology, 33(1): 271-318 (2020).
  13. C. Hazay and M. Venkitasubramaniam. What Security Can We Achieve within 4 Rounds? In the Journal of Cryptology, 32(4): 1200-1262 (2019).
  14. C. Hazay and A. Yanay. Constant-Round Maliciously Secure Two-Party Computation in the RAM Model. In the Journal of Cryptology, 32(4): 1144-1199 (2019).
  15. C. Hazay and M. Venkitasubramaniam. On Black-Box Complexity of Universally Composable Security in the CRS model. In the Journal of Cryptology, 32(3): 635-689 (2019).
  16. C. Hazay, G. L. Mikkelsen, T. Rabin, T. Toft and A. A. Nicolosi. Efficient RSA Key Generation and Threshold Paillier in the Two-Party Setting. In the Journal of Cryptology, 32(2): 265--323 (2019).
  17. C. Hazay. Oblivious Polynomial Evaluation and Secure Set-Intersection from Algebraic PRFs. In the Journal of Cryptology, 31(2): 537-586 (2018).
  18. S. Faust, C. Hazay and D. Venturi. Outsourced Pattern Matching. In the International Journal of Information Security, 17(3): 327-346 (2018).
  19. C. Hazay and A. Patra. One-Sided Adaptively Secure Two-Party Computation. In the Journal of Cryptology, 30(1): 321-371 (2017).
  20. G. Asharov, R. Canetti and C. Hazay. Towards a Game Theoretic View of Secure Computation. In the Journal of Cryptology, 29(4): 879-926 (2016).
  21. S. Faust, C. Hazay, J. B. Nielsen, P. S. Nordholt and A. Zottarel. Signature Schemes Secure against Hard-to-Invert Leakage. In the Journal of Cryptology, 29(2): 422-455 (2016).
  22. C. Hazay, A. Lopez-Alt, H. Wee and D. Wichs. Leakage-Resilient Cryptography from Minimal Assumptions. In the Journal of Cryptology, 29(3): 514-551 (2016).
  23. M. J. Freedman, C. Hazay, K. Nissim and B. Pinkas.  Efficient Set Intersection with Simulation-Based Security. In the Journal of Cryptology, 29(1): 115-155 (2016).
  24. R. Cole, C. Hazay, M. Lewenstein and D. Tsur. Two Dimensional Parameterized Matching. In ACM Transactions on Algorithms, 11(2): 12:1-12:30 (2014).
  25. R. Gennaro, C. Hazay and J. Sorensen. Automata Evaluation and Text Search Protocols with Simulation Based Security. In the Journal of Cryptology, 29(2): 243-282 (2016).
  26. C. Hazay and T. Toft. Computationally Secure Pattern Matching in the Presence of Malicious Adversaries. In the Journal of Cryptology, 27(2): 358-395 (2014).
  27. D. Klinc, C. Hazay, A. Jagmohan, H. Krawczyk and T. Rabin. On Compressing Data Encrypted with Block Ciphers. In IEEE Transactions on Information Theory, 58(11): 6989-7001 (2012).
  28. D. Gordon, C. Hazay, J. Katz and Y. Lindell. Complete Fairness in Secure Two-Party Computation. In the Journal of ACM, 58(6): 24 (2011).
  29. C. Hazay and K. Nissim. Efficient Set Operations in the Presence of Malicious Adversaries. In the Journal of Cryptology, 25(3): 383-433 (2012).
  30. C. Hazay and Y. Lindell. Efficient Protocols for Set Intersection and Pattern Matching with Security Against Malicious and Covert Adversaries. In the Journal of Cryptology, 23(3): 422-456, 2010.
  31. C. Hazay, M. Lewenstein and D. Sokol. Approximate Parameterized Matching. In ACM Transactions on Algorithms, 3(3): 15, 2007.

Conference Publications:

  1. Y. Yang, D. Heath, C. Hazay, V. Kolesnikov and M. Venkitasubramaniam. Tight ZK CPU: Batched ZK Branching with Cost Proportional to Evaluated Instructions. In the ACM Conference on Computer and Communications Security (ACM CCS), pages 3095-3109, 2023.
  2. T. Albouy, D. Frey, R. Gelles, C. Hazay, M. Reynal, E. Schiller, F. Taiani, and V. Zikas. Brief Announcement: Towards Optimal COmmunication Byznatine Reilable Broadcast Under a Message Adversary. In DISC, 41:1,41:7, 2024.
  3. F. Berti, C. Hazay, and I. Levi. sfLR-sfOT: Leakage-Resilient Oblivious Transfer. In SCN, Springer-Verlag (LNCS 14973), pages 182-204, 2024.
  4. A. Acharya, C. Hazay, V. Kolesnikov, and M. Prabhakaran. Malicious Security for SCALES - Outsourced Computation with Ephemeral Servers. In CRYPTO, Springer (LNCS 14928), pages 328-38, 2024.
  5. C. Hazay and Y. Yang. Toward Malicious Constant-Rate 2PC via Arithmetic Garbling. In EUROCRYPT Springer-Verlag (LNCS 14655), pages 401-431, 2024.
  6. R. Wang, C. Hazay and M. Venkitasubramaniam. Ligetron: Lightweight Scalable End-to-End Zero-Knowledge Proofs Post-Quantum ZK-SNARKs on a Browser. In IEEE Symposium on Security and Privacy (S&P), pages 1760-1776, 2024.
  7. C. Hazay, M. Venkitasubramaniam and M. Weiss. Your Reputation's Safe with Me: Framing-Free Distributed Zero-Knowledge Proofs. In the Theory of Cryptography Conference (TCC), Springer (LNCS 14369 ), pages 34-64, 2023
  8. C. Hazay, M. Venkitasubramaniam and M. Weiss. Beyond MPC-in-the-Head: Black-Box Constructions of Short Zero-Knowledge Proofs. In the Theory of Cryptography Conference (TCC), Springer (LNCS 14369 ), pages 3-33, 2023.
  9. A. Acharya, C. Hazay, O. Poburinnaya and M. Venkitasubramaniam. Best of Both Worlds - Revisiting the Spymasters Double Agent Problem. In CRYPTO, Springer (LNCS 14081), pages 3-359, 2023.
  10. S. Faust, C. Hazay, D. Kretzler and B. Schlosser. Statement-Oblivious Threshold Witness Encryption. In CSF , pages 17-32, 2023.
  11. A. Acharya, T. Ashur, E. Cohen, C. Hazay and A. Yanai. A New Framework for Garbled Circuits. In ACNS, Springer (LNCS 13906), pages 611-641, 2023.
  12. H. Sereshgi, L. Bangalore, C. Hazay and M. Venkitasubramaniam. Flag: A framework for lightweight robust secure aggregation. In ACM AsiaCCS, pages 14-28, 2023.
  13. R. Bhadauria, C. Hazay, M. Venkitasubramaniam, W. Wu, and Y. Zhang. Private Polynomial Commitments and Applications to MPC. In Public Key Cryptography (PKC) Springer (LNCS 13941), pages 127-158, 2023.
  14. S. Faust, C. Hazay, D. Kretzler and B. Schlosser. Putting the Online Phase on a Diet: Covert Security from Short MACs. In CT-RSA Springer-Verlag (LNCS 13871), pages 360-386, 2023.
  15. Y. Yang, D. Heath, C. Hazay, V. Kolesnikov and M. Venkitasubramaniam. Batchman and Robin: Batched and Non-batched Branching for Interactive ZK. In the ACM Conference on Computer and Communications Security (ACM CCS), pages 1452-1466, 2023.
  16. A. Acharya, C. Hazay, V. Kolesnikov, and M. Prabhakaran. SCALES: MPC with Small Clients and Larger Ephemeral Servers. In the Theory of Cryptography Conference (TCC), Springer-Verlag (LNCS 13748), pages 502-531, 2022.
  17. R. Bhadauria, L. Bangalore, C. Hazay and M. Venkitasubramaniam. On black-box constructions of time and space efficient sublinear arguments from symmetric-key primitives. In the Theory of Cryptography Conference (TCC), Springer-Verlag (LNCS 13747), pages 417-446, 2022.
  18. G. R. Chandran, C. Hazay, R. Hundt and T. Schneider. Comparison-based MPC in star topology. In SECRYPT, pages 69-82, 2022.
  19. C. Hazay, M. Venkitasubramaniam and M. Weiss. Protecting Distributed Primitives against Leakage: Equivocal Secret Sharing and More. In ITC, pages 1-24(230), 2022.
  20. L. de Catro, C. Hazay, Y. Ishai, V. Vaikuntanathan and M. Venkitasubramaniam. Asymptotically Quasi-Optimal Cryptography. In EUROCRYPT Springer-Verlag (LNCS 13275), pages 303-334, 2022.
  21. S. Faust, C. Hazay, D. Kretzler and B. Schlosser. Financially Backed Covert Security. In Public Key Cryptography (PKC) Springer-Verlag (LNCS 13178), pages 99-129, 2022.
  22. C. Hazay, M. Venkitasubramaniam and M. Weiss. ZK-PCPs from Leakage-Resilient Secret Sharing. In ITC, pages 1-21(199), 2021.
  23. S. Faust, C. Hazay, D. Kretzler and B. Schlosser. Generic Compiler for Publicly Verifiable Covert Multi-Party Computation. In EUROCRYPT Springer-Verlag (LNCS 13178), pages 99-129, 2021.
  24. M. Chen, C. Hazay, Y. Ishai, Y. Kashnikov, D. Micciancio, T. Riviere, a. shelat, M. Venkitasubramaniam and R. Wang. Diogenes: Lightweight Scalable RSA Modulus Generation with a Dishonest Majority. In IEEE Symposium on Security and Privacy (S&P), 2021.
  25. J. Abascal, C. Hazay, M. H. Faghihi Sereshgi, Y. Ishai and M. Venkitasubramaniam. Is the Classical GMW Paradigm Practical? The Case of Non-Interactive Actively Secure 2PC. In the ACM Conference on Computer and Communications Security (ACM CCS), pages 1591-1605, 2020.
  26. R. Bhadauria, Z. Fang, C. Hazay, M. Venkitasubramaniam, T. Xie and Y. Zhang. Ligero++: A New Optimized Sublinear IOP. In the ACM Conference on Computer and Communications Security (ACM CCS), pages 2025-2038, 2020.
  27. C. Hazay and M. Lilintal. Gradual GRAM and Secure Computation for RAM Programs. In the Conference on Security and Cryptography for Networks (SCN), Springer-Verlag (LNCS 12238), pages 233-252, 2020.
  28. R. Bhadauria and C. Hazay. Multi-Clients Verifiable Computation via Conditional Disclosure of Secrets. In the Conference on Security and Cryptography for Networks (SCN), Springer-Verlag (LNCS 12238), pages 150-172, 2020.
  29. C. Hazay, A. Shelat and M. Venkitasubramaniam. Going Beyond Dual Execution: MPC for Functions with Efficient Verification. In Public Key Cryptography (PKC) Springer-Verlag (LNCS 12111), pages 328-356, 2020.
  30. C. Hazay, R. Pass and M. Venkitasubramaniam. Which Languages Have 4-Round Fully Black-Box Zero-Knowledge Arguments from One-Way Functions? In EUROCRYPT Springer-Verlag (LNCS 12106), pages 599-619, 2020.
  31. C. Hazay, M. Venkitasubramaniam and M. Weiss. The Price of Active Security in Cryptographic Protocols. In EUROCRYPT Springer-Verlag (LNCS 12106), pages 184-215, 2020.
  32. C. Hazay, A. Marcedone, Y. Ishai, M. Venkitasubramaniam. LevioSA: Lightweight Secure Arithmetic Computation. In the ACM Conference on Computer and Communications Security (ACM CCS), pages 327-344 2019.
  33. M. Byali, C Hazay, A. Patra and S. Singla. Fast Actively Secure Five-Party Computation with Security Beyond Abort. In the ACM Conference on Computer and Communications Security (ACM CCS), pages 1573-1590 2019.
  34. C. Hazay, E. Orsini, P. Scholl and E. Soria-Vazquez. Concretely Efficient Large-Scale MPC with Active Security (or, TinyKeys for TinyOT). In ASIACRYPT, Springer-Verlag (LNCS 11274), pages 86-117, 2018.
  35. C. Hazay and M. Venkitasubramaniam. Round-Optimal Fully Black-Box Zero-Knowledge Arguments from One-Way Permutations. In the Theory of Cryptography Conference (TCC), Springer-Verlag (LNCS 11239), pages 263-285, 2018.
  36. S. Halevi, C. Hazay, A. Polychroniadou and M. Venkitasubramaniam. Round-Optimal Secure Multi-Party Computation. In CRYPTO, Springer-Verlag (LNCS 10993), pages 488-520, 2018.
  37. C. Hazay, E. Orsini, P. Scholl and E. Soria-Vazquez. Efficient MPC from Syndrome Decoding. In CRYPTO, Springer-Verlag (LNCS 10993), pages 3-33, 2018.
  38. C. Hazay, Y. Ishai, M. Venkitasubramaniam. Actively Secure Garbled Circuits with Constant Communication Overhead in the Plain Model. In the Theory of Cryptography Conference (TCC), Springer-Verlag (LNCS 10678), pages 3-39, 2017.
  39. C. Hazay, P. Scholl and E. Soria-Vazquez. Low Cost Constant Round MPC Combining BMR and Oblivious Transfer. In ASIACRYPT, Springer-Verlag (LNCS 10624), pages 598-628, 2017.
  40. S. Ames, C. Hazay, Y. Ishai, M. Venkitasubramaniam. Ligero: Lightweight Sublinear Arguments Without a Trusted Setup. In the ACM Conference on Computer and Communications Security (ACM CCS), pages 2087-2104 2017.
  41. C. Hazay A. Polychroniadou and M. Venkitasubramaniam. Constant-Round Adaptively Secure Protocols in the Tamper-Proof Hardware Model. In Public Key Cryptography (PKC), Springer-Verlag (LNCS 10175), pages 428-460, 2017.
  42. C. Hazay and M. Venkitasubramaniam. Scalable Multi-Party Private Set-Intersection. In Public Key Cryptography (PKC), Springer-Verlag (LNCS 10174), pages 175-203, 2017.
  43. C. Hazay and A. Yanay. Constant-Round Maliciously Secure Two-Party Computation in the RAM Model. In the Theory of Cryptography Conference (TCC-B), Springer-Verlag (LNCS 9985), pages 521-553, 2016.
  44. C. Hazay and M. Venkitasubramaniam. Composable Adaptive Secure Protocols without Setup under Polytime Assumptions. In the Theory of Cryptography Conference (TCC-B), Springer-Verlag (LNCS 9985), pages 400-432, 2016.
  45. C. Hazay, A. Polychroniadou and M. Venkitasubramaniam. Composable Security in the Tamper-Proof Hardware Model under Minimal Complexity. In the Theory of Cryptography Conference (TCC-B), Springer-Verlag (LNCS 9985), pages 367-399, 2016.
  46. C. Hazay and M. Venkitasubramaniam. What Security Can We Achieve within 4 Rounds? In the Conference on Security and Cryptography for Networks (SCN), pages 486-505, 2016.
  47. C. Hazay and H. Zarosim. The Feasibility of Outsourced Database Search in the Plain Model. In the Conference on Security and Cryptography for Networks (SCN), pages 313-332, 2016.
  48. C. Hazay and M. Venkitasubramaniam. On the Power of Secure Two-Party Computation. In CRYPTO, Springer-Verlag (LNCS 9815), pages 397-429, 2016.
  49. C. Hazay, A. Patra and B. Warinschi. Selective Opening Security for Receivers. In ASIACRYPT, Springer-Verlag (LNCS 9453), pages 443-469, 2015.
  50. C. Hazay and M. Venkitasubramaniam. On Black-Box Complexity of Universally Composable Security in the CRS model. In ASIACRYPT, Springer-Verlag (LNCS 9453), pages 183-209, 2015.
  51. C. Hazay, Y. Lindell and A. Patra. Adaptively Secure Computation with Partial Erasures. In PODC, pages 291-300, 2015.
  52. C. Hazay. Oblivious Polynomial Evaluation and Secure Set-Intersection from Algebraic PRFs. In the Theory of Cryptography Conference (TCC), Springer-Verlag (LNCS 9015), pages 90-120, 2015.
  53. C. Hazay and A. Patra. One-Sided Adaptively Secure Two-Party Computation. In the Theory of Cryptography Conference (TCC), Springer-Verlag (LNCS 8349), pages 368-393, 2014.
  54. S. Faust, C. Hazay and D. Venturi. Outsourced Pattern Matching. In ICALP, Springer-Verlag (LNCS 7966), pages 545-556, 2013.
  55. C. Hazay, A. Lopez-Alt, H. Wee and D. Wichs. Leakage-Resilient Cryptography from Minimal Assumptions. In EUROCRYPT, Springer-Verlag (LNCS 7658), pages 160-176, 2013.
  56. S. Faust, C. Hazay, J. B. Nielsen, P. S. Nordholt and A. Zottarel. Signature Schemes Secure against Hard-to-Invert Leakage. In ASIACRYPT, Springer-Verlag (LNCS 7658), pages 98-115, 2012.
  57. Akavia, S. Goldwasser and C. Hazay. Distributed Public Key Schemes Secure against Continual Leakage. In PODC, pages 155-164, 2012.
  58. I. Damgard, S. Faust and C. Hazay. Secure Two-Party Computation with Low Communication. In the Theory of Cryptography Conference (TCC), Springer-Verlag (LNCS 7194), pages 54-74, 2012.
  59. C. Hazay, G. L. Mikkelsen, T. Rabin and T. Toft. Efficient RSA Key Generation and Threshold Paillier in the Two-Party Setting. In CT-RSA, Springer-Verlag (LNCS 7178), pages 313-331, 2012.
  60. G. Asharov, R. Canetti and C. Hazay. Towards a Game Theoretic View of Secure Computation. In EUROCRYPT, Springer-Verlag (LNCS 6632), pages 426-445, 2011.
  61. C. Hazay and T. Toft. Computationally Secure Pattern Matching in the Presence of Malicious Adversaries. In ASIACRYPT, Springer-Verlag (LNCS 6477), pages 195-212, 2010.
  62. R. Gennaro, C. Hazay and J. Sorensen. Text Search Protocols with Simulation Based Security. In Public Key Cryptography (PKC), pages 332-350, 2010.
  63. C. Hazay and K. Nissim. Efficient Set Operations in the Presence of Malicious Adversaries. In Public Key Cryptography (PKC), pages 312-331, 2010.
  64. D. Klinc, C. Hazay, A. Jagmohan, H. Krawczyk and T. Rabin. On Compressing Data Encrypted with Block Ciphers. In Data Compression Conference, 213-222, 2009.
  65. C. Hazay and Y. Lindell. Constructions of Truly Practical Secure Protocols using Standard Smartcards. In the ACM Conference on Computer and Communications Security (ACM CCS), pages 491-500, 2008.
  66. D. Gordon, C. Hazay, J. Katz and Y. Lindell. Complete Fairness in Secure Two-Party Computation. In the ACM Symposium on the Theory of Computing (STOC), pages 413-422, 2008.
  67. C. Hazay and Y. Lindell. Efficient Protocols for Set Intersection and Pattern Matching with Security Against Malicious and Covert Adversaries. In the Theory of Cryptography Conference (TCC), Springer-Verlag (LNCS 4948), pages 155-175, 2008.
  68. C. Hazay, J. Katz, C.Y. Koo and Y. Lindell. Concurrently-Secure Blind Signatures without Random Oracles or Setup Assumptions. In the Theory of Cryptography Conference (TCC), Springer-Verlag (LNCS 4392), pages 323-341, 2007.
  69. C. Hazay, M. Lewenstein and D. Tzur. Faster Algorithm for 2D parameterized Matching. In the Symposium on Combinatorial Pattern Matching (CPM). Pages 266-279, 2005.
  70. C. Hazay, M. Lewenstein and D. Sokol. Approximate parameterized matching. In the 16th Annual European Symposium on Algorithms (ESA), pages 414-425, 2004.

Technical Reports:

  1. C. Hazay and Y. Lindell. A Note on Zero-Knowledge Proofs of Knowledge and the ZKPOK Ideal Functionality. Cryptology ePrint Archive, Report 2010/552, 2010.
  2. C. Hazay and Y. Lindell. A Note on the Relation between the Definitions of Security for Semi- Honest and Malicious Adversaries. Cryptology ePrint Archive, Report 2010/551, 2010.

Other Publications:

  • C. Hazay. Secure Two-Party Computation. Galileo Magazine, February 2010.