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:
Aug. 06, 2019
Filed:
Apr. 13, 2011
Sandeep Tamrakar, Espoo, FI;
Jan-erik Ekberg, Vantaa, FI;
Jukka Virtanen, Helsinki, FI;
Nadarajah Asokan, Espoo, FI;
Sandeep Tamrakar, Espoo, FI;
Jan-Erik Ekberg, Vantaa, FI;
Jukka Virtanen, Helsinki, FI;
Nadarajah Asokan, Espoo, FI;
Nokia Technologies Oy, Espoo, FI;
Abstract
A method, apparatus, system and computer program where an apparatus stores user specific credentials, receives a certificate via the communication interface from a certificate authority and stores the certificate in the memory. The apparatus further stores a private key and a public key in the memory and attempts authenticating of the apparatus to a ticket reader for accessing a service, by transmission of one or more messages, wherein the messages contain an authenticator that has at least one of the following: the certificate or its cryptographic derivative; one or more data items contained by the certificate or a cryptographic derivative thereof. The messages are prepared such that the public key is not recoverable from outside of the authenticator.