The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2018
Filed:
Jul. 27, 2017
Duo Security, Inc., Ann Arbor, MI (US);
Jon Oberheide, Ann Arbor, MI (US);
Douglas Song, Ann Arbor, MI (US);
Duo Security, Inc., Ann Arbor, MI (US);
Abstract
Systems and methods for authentication. At an authentication service, key synchronization information is stored for an enrolled authentication device for a user identifier of a service provider. The key synchronization information indicates that a private key stored by the authentication device is synchronized with a public key stored at the service provider. Responsive to an authentication request provided by the service provider for the user identifier, the authentication service determines an authentication device for the user identifier that stores a synchronized private key by using the key synchronization information, and provides the authentication request to the authentication device. The authentication service provides a signed authentication response to the service provider. The authentication response is responsive to the authentication request and signed by using the private key. The service provider verifies the signed authentication response by using the public key.