Differentially Private SQL Database Systems

This research project is supported by the National Science Foundation under Award CNS-2317233.

Products

• DP4SQL: Differentially Private SQL with Flexible Privacy Policies
  Andrew Cascio, KinChin Tong, Daniel Kifer, Zeyu Ding, Danfeng Zhang
  CCS 2026 (to appear).

• ResidualPlanner+: a scalable matrix mechanism for marginals and beyond
  Guanlin He, Yingtai Xiao, Levent Toksoz, Zeyu Ding, Danfeng Zhang, Daniel Kifer
  VLDB Journal (to appear).

• Avoiding Floating-Point Side Channels in the Report Noisy Max with Gap Mechanism
  KinChin Tong, Zeyu Ding, John Durrell, Daniel Kifer, Prottay Protivash, Guanhong Wang, Yuxin Wang, Yingtai Xiao, Danfeng Zhang
  Journal of Privacy and Confidentiality, Vol. 15 (3) 2025

• Reconstruction Attacks on Aggressive Relaxations of Differential Privacy
  Prottay Protivash, John Durrell, Daniel Kifer, Zeyu Ding, Danfeng Zhang
  Journal of Privacy and Confidentiality, Vol. 14 (3) 2024