Patent ID: 11886569
Assignee: GOOGLE LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 18:
19. One or more non-transitory computer-readable media storing instructions that, when executed by one or more computers, cause the one or more computers to perform operations comprising:
receiving, from a client device, a request for one or more trust tokens, the request comprising:
at least one of (i) one or more device-level fraud detection signals obtained from the client device or (ii) data representing code of an application that initiated the request; and
a respective nonce for each of the one or more trust tokens, wherein the nonce for each trust token is a blinded nonce that was blinded using a blind signature scheme;

determining, based on at least one of (i) the one or more device-level fraud signals or (ii) the data representing the code of the application, to issue the one or more trust tokens to the client device;
in response to determining to issue the one or more trust tokens to the client device:
generating each of the one or more trust tokens using the nonce for the trust token; and
providing the one or more trust tokens to the client device.