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:
Nov. 11, 2014
Filed:
Jun. 22, 2010
Mats Naslund, Bromma, SE;
Tereza Cristina Carvalho, Sao Paulo, BR;
Cristina Dominicini, Vila Velha/ES, BR;
Makan Pourzandi, Montreal, CA;
Rony Sakuragui, Sao Paulo, BR;
Marcos Antonio Simplicio Junior, Sao Paulo, BR;
Mats Naslund, Bromma, SE;
Tereza Cristina Carvalho, Sao Paulo, BR;
Cristina Dominicini, Vila Velha/ES, BR;
Makan Pourzandi, Montreal, CA;
Rony Sakuragui, Sao Paulo, BR;
Marcos Antonio Simplicio Junior, Sao Paulo, BR;
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Abstract
A method for preserving privacy during authorization in pervasive environments is described. The method includes an authorization phase in which the user is provided with a reusable credential associated with verifiable constraints, and an operation phase where the service provider verifies the reusable credential before authorizing the user. Third parties cannot link plural uses of the credential to each other, and the service provider cannot link plural uses of said credential to each other.