Patent ID: 11870769
Assignee: ENTERSEKT INTERNATIONAL LIMITED
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 14:
15. A system for identifying a browser instance executing on a user computing device, comprising:
the user computing device having a device processor and a device memory configured to provide computer program instructions to the device processor to execute the operations of, in a browser session being between a server hosting a web domain and the browser instance:
obtaining a private key and a public key of a key pair unique to a combination of the web domain and the browser instance being used to access the web domain;
storing the private key at a storage provided by the browser instance for use by the browser instance during an active browser session with the web domain and in which the private key is stored as unextractable from the storage, wherein the private key is stored with configuration for use by the browser instance during an active browser session with the web domain in signing or cryptographic operations without the private key being revealed;
receiving, from the server, a challenge request;
generating a challenge response to the challenge request using the private key; and
transmitting, to the server, the challenge response for validation.