公开(公告)号：US11494506B2

公开(公告)日：2022-11-08

申请号：US16486281

申请日：2019-04-19

Applicant: Google LLC

Inventor： Sarvar Patel ,  Marcel M. Moti Yung ,  Karn Seth ,  Benjamin Kreuter

IPC: G06F21/62 ,  H04L9/00

Abstract: Systems, methods, devices, and other techniques for preserving privacy when comparing private datasets from first and second computing systems. The second computing system identifies a first set of identifiers corresponding to records in a private database of the second computing system. The second computing system receives blinded versions of a set of identifiers corresponding to records in a private database of the first computing system. The second computing system determines an intersection or characteristic thereof of the records in the private database of the first computing system and the records in the private database of the second computing system based on matches between the blinded versions of the first and second sets of identifiers.

公开(公告)号：US20220200794A1

公开(公告)日：2022-06-23

申请号：US17567208

申请日：2022-01-03

Applicant: Google LLC

Inventor： Shobhit Saxena ,  Benjamin Kreuter ,  Sarvar Patel ,  Karn Seth

IPC: H04L9/08 ,  H04L9/40 ,  G06F21/62 ,  G06F9/44 ,  H04L9/00 ,  H04L9/32

Abstract: Systems and methods may be used for establishing a link between user identifiers of different systems without disclosing specific user identifying information. One method includes generating a matching relationship based on double encrypted one or more first data sets of a first party system and double encrypted one or more second data sets of a second party system. The matching relationship indicates one or more links between match keys associated with the first party system and the match keys associated with the third party system. The method includes assigning bridge identifiers for user identifiers associated with the first party system and the user identifiers associated with the third party system based on the matching relationship.

公开(公告)号：US11240009B2

公开(公告)日：2022-02-01

申请号：US17002610

申请日：2020-08-25

Applicant: Google LLC

Inventor： Shobhit Saxena ,  Benjamin Kreuter ,  Sarvar Patel ,  Karn Seth

IPC: H04L9/08 ,  H04L29/06 ,  G06F21/62 ,  G06F9/44 ,  H04L9/00 ,  H04L9/32 ,  H04L9/30

Abstract: Systems and methods may be used for establishing a link between user identifiers of different systems without disclosing specific user identifying information. One method includes generating a matching relationship based on double encrypted one or more first data sets of a first party system and double encrypted one or more second data sets of a second party system. The matching relationship indicates one or more links between match keys associated with the first party system and the match keys associated with the third party system. The method includes assigning bridge identifiers for user identifiers associated with the first party system and the user identifiers associated with the third party system based on the matching relationship.