US 12,438,850 B2
Privacy-preserving techniques for content selection and distribution
Gang Wang, Frederick, MD (US); and Marcel M. Moti Yung, New York, NY (US)
Assigned to Google LLC, Mountain View, CA (US)
Filed by Google LLC, Mountain View, CA (US)
Filed on Jun. 14, 2024, as Appl. No. 18/744,187.
Application 18/744,187 is a continuation of application No. 17/794,146, granted, now 12,052,227, previously published as PCT/US2021/062880, filed on Dec. 10, 2021.
Claims priority of application No. 279406 (IL), filed on Dec. 13, 2020.
Prior Publication US 2024/0414136 A1, Dec. 12, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 29/06 (2006.01); G06F 21/62 (2013.01); H04L 9/40 (2022.01)
CPC H04L 63/0421 (2013.01) [G06F 21/6254 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method comprising:
receiving, by a first computer and from an application of a client device, a request for a digital component;
in response to receiving the request:
conducting, by the first computer in collaboration with a second computer, a privacy-preserving selection process using a secure multi-party computation (MPC) protocol to select a first digital component from among a set of digital components by evaluating each rule of a set of selection rules for each digital component, including a privacy-preserving anonymity enforcement rule for each digital component; and
conducting, by the first computer in collaboration with the second computer, a counterfactual selection process using the secure MPC protocol to select a second digital component from among the set of digital components by evaluating each rule of the set of selection rules for each digital component, except for the privacy-preserving anonymity enforcement rule for each digital component;
sending, by the first computer and to the client device, a selection result defining the first digital component; and
updating, by the first computer, a privacy-preserving data structure to indicate that the second digital component was selected by the counterfactual selection process.