Understanding Information Disclosure from Secure Computation Output: A Study of Average Salary Computation

arXiv:2209.10457v2 Announce Type: replace
Abstract: Secure multi-party computation has seen substantial performance improvements in recent years and is being increasingly used in commercial products. While a significant amount of work was dedicated to improving its efficiency under standard security models, the threat models do not account for information leakage from the output of secure function evaluation. Quantifying information disclosure about private inputs from observing the function outcome is the subject of this work. Motivated by the City of Boston gender …

account arxiv commercial computation cs.cr cs.it disclosure efficiency information information disclosure math.it party performance products salary secure computation security security models standard study threat threat models under understanding work