US 12,015,720 B2
Integrating identity tokens and privacy-preserving identity attribute attestations into interactions
Kim Wagner, Sunnyvale, CA (US); Brian Sullivan, Amersham (GB); Dinah Sloan, San Jose, CA (US); Hao Ngo, San Jose, CA (US); Gaven James Watson, Palo Alto, CA (US); Sunpreet Singh Arora, San Jose, CA (US); Saikrishna Badrinarayanan, Fremont, CA (US); and Srinivasan Raghuraman, Cambridge, MA (US)
Assigned to Visa International Service Association, San Francisco, CA (US)
Appl. No. 18/044,544
Filed by Visa International Service Association, San Francisco, CA (US)
PCT Filed Nov. 17, 2021, PCT No. PCT/US2021/059717
§ 371(c)(1), (2) Date Mar. 8, 2023,
PCT Pub. No. WO2022/109020, PCT Pub. Date May 27, 2022.
Claims priority of provisional application 63/241,495, filed on Sep. 7, 2021.
Claims priority of provisional application 63/115,475, filed on Nov. 18, 2020.
Prior Publication US 2023/0275766 A1, Aug. 31, 2023
Int. Cl. H04L 9/32 (2006.01); H04L 9/30 (2006.01)
CPC H04L 9/3255 (2013.01) [H04L 9/3066 (2013.01); H04L 9/3218 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by an identity network computer, a query set comprising a plurality of test identity attributes;
retrieving, by the identity network computer, one or more derivatives of one or more identity attributes associated with a user, and an encrypted trapdoor;
computing, by the identity network computer, an obscured query set using the query set, and the one or more derivatives of the one or more identity attributes associated with the user; and
transmitting, by the identity network computer, the obscured query set and the encrypted trapdoor to a user device associated with the user, which transmits a first modified trapdoor and the obscured query set to a relying party computer,
wherein the relying party computer uses the obscured query set, and the first modified trapdoor, to determine if the one or more the identity attributes of the one or more derivatives of the identity attributes is a member of the query set associated with the obscured query set.