47 citations · 61 across the 3 of their papers we have counts for
4 papers · 1 filter
Amplification by Shuffling without Shuffling
Borja Balle, James Bell, Adrià Gascón
Motivated by recent developments in the shuffle model of differential privacy, we propose a new approximate shuffling functionality called Alternating Shuffle, and provide a protoc…
TraceSecure: Towards Privacy Preserving Contact Tracing
James Bell, David Butler, Chris Hicks +1
Contact tracing is being widely employed to combat the spread of COVID-19. Many apps have been developed that allow for tracing to be done automatically based off location and inte…
Improved Summation from Shuffling
Borja Balle, James Bell, Adria Gascon +1
A protocol by Ishai et al.\ (FOCS 2006) showing how to implement distributed -party summation from secure shuffling has regained relevance in the context of the recently propose…
Differentially Private Summation with Multi-Message Shuffling
Borja Balle, James Bell, Adria Gascon +1
In recent work, Cheu et al. (Eurocrypt 2019) proposed a protocol for -party real summation in the shuffle model of differential privacy with error and $Θ(ε\sqrt{n}…