Patent ID: 11915077
Assignee: CISCO TECHNOLOGY, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method comprising:
maintaining, by a code authentication service and as database entries, a mapping of uniform resource locators and key information embedded into scannable codes;
receiving, at the code authentication service and from a requesting device, a domain name system resolution request for a particular uniform resource locator, wherein the code authentication service receives the key information as part of the domain name system resolution request;
determining, by the code authentication service and based on the mapping whether the domain name system resolution request is associated with valid key information for the particular uniform resource locator;
providing, by the code authentication service and to the requesting device, a domain name system resolution response that indicates an address associated with the particular uniform resource locator, when the code authentication service determines that the domain name system resolution request includes valid key information for the particular uniform resource locator; and
notifying, when the code authentication service determines that the domain name system resolution request for a scan of a particular scannable code does not include valid key information for the particular uniform resource locator, an owner of the particular scannable code of the scan.