Private Access Control for Function Secret Sharing

In function secret sharing (FSS) a dealer can privately outsource some function \(f\) to a set of evaluators. These evaluators can evaluate the function on some input \(x\) without learning the result of the computation \(f(x)\). We introduce the notion of private access control for function secret sharing, whereby we restrict the dealer to only be able to secret-share a function that they have been granted access to, all while maintaining privacy.

References

2023

  1. Private Access Control for Function Secret Sharing
    Sacha Servan-SchreiberSimon Beyzerov, Eli Yablon, and 1 more author
    In 2023 IEEE Symposium on Security and Privacy (SP), May 2023