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Malicious Security for Sparse Private Histograms
March 22, 2024, 9:42 p.m. |
IACR News www.iacr.org
ePrint Report: Malicious Security for Sparse Private Histograms
Lennart Braun, Adrià Gascón, Mariana Raykova, Phillipp Schoppmann, Karn Seth
We present a construction for secure computation of differentially private sparse histograms that aggregates the inputs from a large number of clients. Each client contributes a value to the aggregate at a specific index. We focus on the case where the set of possible indices is superpolynomially large. Hence, the resulting histogram will be sparse, i.e., most entries will have the value …
client clients computation construction eprint report focus inputs large malicious private report secure computation security value
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