	US 11,954,191 B2
	System and method for performing identity authentication based on de-identified data
Gil Perry, Tel Aviv (IL); Sella Blondheim, Tel Aviv (IL); Eliran Kuta, Tel Aviv (IL); and Yoav Hacohen, Tel Aviv (IL)
Assigned to DE-IDENTIFICATION LTD., Tel Aviv (IL)
Appl. No. 17/273,420
Filed by DE-IDENTIFICATION LTD., Tel Aviv (IL)
PCT Filed Sep. 5, 2019, PCT No. PCT/IL2019/050993 § 371(c)(1), (2) Date Mar. 4, 2021, PCT Pub. No. WO2020/049565, PCT Pub. Date Mar. 12, 2020.
Claims priority of provisional application 62/727,155, filed on Sep. 5, 2018.
Prior Publication US 2021/0200851 A1, Jul. 1, 2021
Int. Cl. G06F 21/00 (2013.01); G06F 21/32 (2013.01); G06N 3/08 (2023.01); H04L 9/32 (2006.01); G06V 40/16 (2022.01)

CPC G06F 21/32 (2013.01) [G06N 3/08 (2013.01); H04L 9/3231 (2013.01); G06V 40/172 (2022.01)]

18 Claims

1. A method of performing identity authentication based on de-identified data, the method comprising:

receiving, by a processor, a data item from a user;

creating, by the processor, a de-identified data item by applying a de-identification function r on the data item,

training, by the processor, a transformation function p and a key generation function with a loss function of d₁(f(r(x_i), (p(x_j, k_x_{_i})), f(x_i, x_j)), where (x_i, x_j) are a pair of training data items, d₁, is a machine learning function, and f is a recognition function;

generating, by the processor, using the key generation function, an authentication key, based on the received data item and the de-identified data item;

receiving a new data item for authentication;

generating, by the processor, a new de-identified data item by applying the transformation function on the new data item and the authentication key; and

comparing, by the processor, the new de-identified data item with the de-identified data item to authenticate the identity of the user.