2021

Publications and Preprints

  1. Three-Round Secure Multiparty Computation from Black-Box Two-Round Oblivious Transfer. CRYPTO 2021.
    Arpita Patra, Akshayaram Srinivasan.
  2. SWIFT: Super-fast and Robust Privacy-Preserving Machine Learning. Usenix Security Symposium 2021. (Brief Announcement in NeurIPS PRIML and PPML Workshop 2020.)
    Nishat Koti, Mahak Pancholi, Arpita Patra, Ajith Suresh.
  3. ABY2.0: Improved Mixed-Protocol Secure Two-Party Computation Usenix Security Symposium 2021.
    Arpita Patra, Thomas Schneider, Ajith Suresh, Hossein Yalame
  4. On the Exact Round Complexity of Three-party Computation. Journal of Cryptology 2021.
    Full and extended version of CRYPTO 2018 [PDF]
    Arpita Patra and Divya Ravi
  5. Optimal Extension Protocols for Byzantine Broadcast and Agreement. Distributed Computing 2020.
    Full and extended version of PODC'16 and OPODIS'11. [PDF].
    Chaya Ganesh, Arpita Patra

2020

Publications and Preprints

  1. The Round Complexity of Perfect MPC with Active Security and Optimal Resiliency. FOCS 2020.
    Benny Applebaum, Eliran Kachlon, Arpita Patra
  2. The Resiliency of MPC with Low Interaction: The Benefit of Making Errors. TCC 2020.
    Benny Applebaum, Eliran Kachlon and Arpita Patra.
  3. The Power of Shunning: Efficient Asynchronous Byzantine Agreement Revisited. Journal of ACM 2020.
    Full and extended version of PODC'18.
    Laasya Bangalore, Ashish Choudhury and Arpita Patra
  4. On the Exact Round Complexity of Best-of-both-Worlds Multi-party Computation. ASIACRYPT 2020.
    Arpita Patra, Divya Ravi and Swati Singla
  5. BLAZE: Blazing Fast Privacy-Preserving Machine Learning. NDSS 2020.
    Arpita Patra, Ajith Suresh
  6. FLASH: Fast and Robust Framework for Privacy-preserving Machine Learning. PETS 2020.
    Megha Byali, Harsh Chaudhari, Arpita Patra and Ajith Suresh

2019

Publications and Preprints

  1. Beyond Honest Majority: The Round Complexity of Fair and Robust Multi-party Computation. Asiacrypt 2019.
    Full and extended version in submission. [PDF].
    Arpita Patra, Divya Ravi
  2. ASTRA: High Throughput 3PC over Rings with Application to Secure Prediction. ACM CCSW 2019, PPML 2019.
    Harsh Chaudhari, Ashish Choudhury, Arpita Patra and Ajith Suresh
  3. Fast Actively-secure 5-Party Computation with Security Beyond Abort. ACM CCS 2019.
    Megha Byali, Carmit Hazay, Arpita Patra and Swati Singla

2018

Publications and Preprints

  1. On the power of Hybrid Networks in Secure Multi-party Computation. IEEE Transactions on Information Theory.
    Arpita Patra and Divya Ravi
  2. On the Exact Round Complexity of Three-party Computation. CRYPTO'18. Arpita Patra and Divya Ravi
  3. Fast Secure Computation for Small Population over the Internet. ACM CCS'18.
    with Megha Byali, Arun Joseph and Divya Ravi
  4. Almost-Surely Terminating Asynchronous Byzantine Agreement Revisited. PODC'18.
    with Laasya Bangalore and Ashish Choudhury
  5. Crash-tolerant Consensus in Directed Graph Revisited. DISC 2017 (brief announcement); SIROCCO 2018 (full paper).
    with Ashish Choudhury, Gayathri Garimella, Divya Ravi and Pratik Sarkar
  6. Efficient Adaptively Secure Zero-knowledge from Garbled Circuits. PKC 2018.
    with Chaya Ganesh, Yashvanth Kondi and Pratik Sarkar

2017

Publications and Preprints

  1. Efficient One-Sided Adaptively Secure Computation. Journal of Cryptology, 2017.
    Full and extended version of TCC 2014. [PDF].
    with Carmit Hazay
  2. An Efficient Framework for Unconditionally-secure Multiparty Computation. IEEE Transactions on Information Theory.
    with Ashish Choudhury
  3. Privacy-Free Garbled Circuits for Formulas: Size Zero and Information-Theoretic. CRYPTO 2017.
    with Yashvanth Kondi
  4. Fast Actively Secure OT Extension for Short Secrets. NDSS 2017.
    with Pratik Sarkar and Ajith Suresh
  5. Round and Communication Efficient Unconditionally-Secure MPC with n > 3t in Partially Synchronous Network. ICITS 2017.
    with Ashish Choudhury and Divya Ravi

2016

Publications

  1. Broadcast Extensions with Optimal Communication and Round Complexity. PODC 2016.
    with Chaya Ganesh
  2. Linear Overhead Robust MPC with Honest Majority Using Preprocessing. SCN 2016. [PDF].
    with Ashish Choudhury, Emmanuela Orsini, Nigel Smart

2015

Publications and Preprints

  1. Efficient Asynchronous Verifiable Secret Sharing and Multiparty Computation. Journal of Cryptology, 2015.
    with Ashish Choudhary and C. Pandu Rangan
  2. Selective Opening Security for Receivers. ASIACRYPT 2015.
    Full and extended version in submission. [PDF].
    with Carmit Hazay and Bogdan Warinschi
  3. Adaptively Secure Computation with Partial Erasures. PODC 2015.
    Full and extended version in submission. [PDF].
    with Carmit Hazay and Yehuda Lindell
  4. Optimally Resilient Asynchronous MPC with Linear Communication Complexity. ICDCN 2015 .
    with Ashish Choudhury

2014

Publications

  1. Efficient Asynchronous Byzantine Agreement with Optimal Resilience. Distributed Computing Journal, volume 27, number 2, pp. 111- 146, 2014. [PDF].
    with Ashish Choudhary and C. Pandu Rangan
  2. Anonymous Authentication with Shared Secrets. LatinCrypt 2014. PDF.
    with Joel Alwen, Martin Hirt, Ueli Maurer and Pavel Raykov
  3. Key-Indistinguishable Message Authentication Codes. SCN 2014. PDF.
    with Joel Alwen, Martin Hirt, Ueli Maurer and Pavel Raykov
  4. Reducing the Overhead of MPC over a Large Population. SCN 2014. PDF.
    with Ashish Choudhury and Nigel P. Smart
  5. One-Sided Adaptively Secure Two-Party Computation. TCC 2014, LNCS 8349, pp. 368-393, 2014.
    with Carmit Hazay

2013

Publications

  1. Between a Rock and a Hard Place: Interpolating Between MPC and FHE. ASIACRYPT 2013, LNCS 8270, pp. 221-240, 2013. PDF.
    with Ashish Choudhury, Jake Loftus, Emmanuela Orsini and Nigel P. Smart.
  2. Unconditionally Secure Asynchronous Multiparty Computation with Linear Communication Complexity. DISC 2013, LNCS 8205, pp. 406--421, 2013. PDF.
    with Ashish Choudhury and Martin Hirt

2012

Publications

  1. On the Tradeoff Between Network Connectivity, Round Complexity and Communication Complexity of Reliable Message Transmission. Journal of ACM, 2012. PDF.
    with Ashwinkumar Badanidiyuru, Ashish Choudhury, Kannan Srinathan and C. Pandu Rangan
  2. Brief Announcement: Efficient Optimally Resilient Statistical AVSS and Its Applications. PODC 2012, pp. 103-104, ACM Press, 2012. PDF.
    with Ashish Choudhury

2011

Publications

  1. Secure Message Transmission in Asynchronous Networks. Journal of Parallel and Distributed Computing, vol. 71, no. 8, pp. 1067-1074, 2011. PDF.
    with Ashish Choudhury, Ashwinkumar B. V, Kannan Srinathan and C. Pandu Rangan
  2. Computational Verifiable Secret Sharing Revisited. ASIACRYPT 2011, LNCS 7073, pp. 590-609, 2011. PDF.
    with Michael Backes and Aniket Kate
  3. Error-free Multi-valued Broadcast and Byzantine Agreement with Optimal Communication Complexity. OPODIS 2011, LNCS 7109, pp. 34-49, 2011. PDF.
  4. Simple and Efficient Single Round Almost Perfectly Secure Message Transmission Tolerating Generalized Adversary. ACNS 2011, LNCS 6715, pp. 292-308, 2011.PDF.
    with Ashish Choudhury and Kaoru Kurosawa

2010

Publications and Preprints

  1. Statistically Reliable and Secure Message Transmission in Directed Networks. In Submission. PDF.
    with Ashish Choudhury and C. Pandu Rangan
  2. Unconditionally Reliable and Secure Message Transmission in Undirected Synchronous Networks: Possibility, Feasibility and Optimality. International Journal of Applied Cryptography (IJACT), vol 2, Issue 2, pp. 159-197, 2010. PDF.
    with Ashish Choudhury, Kannan Srinathan and C. Pandu Rangan
  3. The Round Complexity of Verifiable Secret Sharing: The Statistical Case. ASIACRYPT 2010, LNCS 6477, pp. 431-447, 2010. PDF.
    with Ranjit Kumaresan and C. Pandu Rangan
  4. Communication Efficient Asynchronous Byzantine Agreement. PODC 2010, pp 243-244, ACM Press, 2010. PDF.
    with C. Pandu Rangan
  5. Communication Efficient Perfectly Secure VSS and MPC in Asynchronous Networks with Optimal Resilience. AFRICACRYPT 2010, LNCS 6055, pp. 184--202, 2010.
    with Ashish Choudhury and C. Pandu Rangan
  6. On The Communication Complexity of Perfectly Secure Message Transmission in Directed Networks. ICDCN 2010, LNCS 5935, pp. 42--53, 2010.
    with Ashish Choudhury and C. Pandu Rangan

2009

Publications and Preprints

  1. Efficient Statistical Asynchronous Verifiable Secret Sharing and Multiparty Computation with Optimal Resilience. In Submission. PDF.
    with Ashish Choudhury and C. Pandu Rangan
  2. Perfectly Reliable and Secure Message Transmission Tolerating Mobile Adversary. International Journal of Applied Cryptography (IJACT), vol. 1, Issue 3, pp. 200-224, 2009.
    with Ashish Choudhury, Kannan Srinathan, C. Pandu Rangan and Prasad Raghavendra
  3. Information Theoretically Secure Multi Party Set Intersection Re-Visited. SAC 2009, LNCS 5867, pp. 71--91, 2009.PDF.
    with Ashish Choudhury and C. Pandu Rangan
  4. Simple and Efficient Asynchronous Byzantine Agreement with Optimal Resilience. PODC 2009, pp. 92--101, ACM Press, 2009.
    with Ashish Choudhury and C. Pandu Rangan
  5. The Round Complexity of Verifiable Secret Sharing Revisited. CRYPTO 2009, LNCS 5677, pp. 487--504, 2009. PDF.
    with Ashish Choudhury, Tal Rabin and C. Pandu Rangan
  6. Perfectly Secure Message Transmission in Directed Networks Revisited. PODC 2009, pp. 278--279, ACM Press, 2009.
    with Ashish Choudhury and C. Pandu Rangan
  7. On Minimal Connectivity Requirement for Secure Message Transmission in Asynchronous Networks. ICDCN 2009, LNCS 5408, pp. 148--162, 2009.
    with Ashish Choudhury, Ashwinkumar B.V, Kannan Srinathan and C. Pandu Rangan

2008

Publications

  1. On Tradeoff Between Network Connectivity, Phase Complexity and Communication Complexity of Reliable Communication Tolerating Mixed Adversary. PODC 2008, pp. 115--124, ACM Press, 2008
    with Ashish Choudhury, Ashwinkumar B.V, Kannan Srinathan and C. Pandu Rangan
  2. Brief Announcement: Efficient Single Phase Unconditionally Secure Message Transmission with Optimum Communication Complexity. PODC 2008, pp. 457, ACM Press, 2008.
    with Ashish Choudhury, Kannan Srinathan and C. Pandu Rangan
  3. Efficient Perfectly Reliable and Secure Communication Tolerating Mobile Adversary. ACISP 2008, LNCS 5107, pp. 170--186, 2008.
    with Ashish Choudhury, Madhu Gayatri and C. Pandu Rangan
  4. Unconditionally Reliable and Secure Message Transmission in Directed Networks Revisited. SCN 2008, LNCS 5229, pp. 309--326, 2008.
    with Ashish Choudhury and C. Pandu Rangan

2007

Publications

  1. Constant Phase Efficient Protocols for Perfectly Secure Message Transmission in Directed Networks. PODC 2007, pp. 322-323, ACM Press, 2007.
    with Ashish Choudhury and C. Pandu Rangan
  2. Perfectly Secure Message Transmission in Directed Networks Tolerating Mixed Adversary. DISC 2007, LNCS 4731, pp. 496--498, 2007.
    with Ashish Choudhury, Kannan Srinathan and C. Pandu Rangan