公开(公告)号：US12192342B2

公开(公告)日：2025-01-07

申请号：US17916871

申请日：2022-03-07

Applicant: Google LLC

Inventor： Gang Wang ,  Sarvar Patel ,  Marcel M. Moti Yung ,  Karn Seth ,  Kevin Wei Li Yeo ,  Benjamin Kreuter ,  Mariana Raykova ,  Tancrède Lepoint

IPC: H04L9/08

Abstract: This document relates to using secure MPC to select digital components in ways that preserve user privacy and protects the security of data of each party that is involved in the selection process. In one aspect, a method includes receiving, by a first computing system of a secure MPC system and from a client device, a digital component request and a nonce. The first computing system generates, based on the nonce and a function, an array including a share of a Bloom filter representing user group identifiers for user groups that include a user of the client device as a member. For each of multiple user group identifiers, the first computing system calculates, in collaboration with one or more second computing systems of the secure MPC system and using the array, a respective first secret share of one or more user group membership condition parameters.

公开(公告)号：US20230155820A1

公开(公告)日：2023-05-18

申请号：US17916871

申请日：2022-03-07

Applicant: Google LLC

Inventor： Gang Wang ,  Sarvar Patel ,  Marcel M. Moti Yung ,  Karn Seth ,  Kevin Wei Li Yeo ,  Benjamin Kreuter ,  Mariana Raykova ,  Tancrède Lepoint

IPC: H04L9/08

CPC classification number: H04L9/085 ,  H04L2209/466

Abstract: This document relates to using secure MPC to select digital components in ways that preserve user privacy and protects the security of data of each party that is involved in the selection process. In one aspect, a method includes receiving, by a first computing system of a secure MPC system and from a client device, a digital component request and a nonce. The first computing system generates, based on the nonce and a function, an array including a share of a Bloom filter representing user group identifiers for user groups that include a user of the client device as a member. For each of multiple user group identifiers, the first computing system calculates, in collaboration with one or more second computing systems of the secure MPC system and using the array, a respective first secret share of one or more user group membership condition parameters.