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. 03, 2018
Filed:
Jun. 21, 2017
T-mobile Usa, Inc., Bellevue, WA (US);
Arturo Silis, Newcastle, WA (US);
T-Mobile USA, Inc., Bellevue, WA (US);
Abstract
When manufacturing, distributing, or selling mobile phones, each phone is associated with an asymmetric cryptographic key pair, comprising a public key and a private key. The private key is stored on the phone, and the public key is stored in a public key repository. When connecting to a cellular network, a phone provides its device ID to the network. The cellular network queries the public key repository to determine the public key of the phone and authenticates the phone using the phone's public key. The cellular network also provides a digital identity certificate to the phone, allowing the phone to authenticate the cellular network using a public key infrastructure (PKI).