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:
Mar. 29, 2016
Filed:
Sep. 04, 2014
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Wassim Haddad, San Jose, CA (US);
Mats Näslund, Bromma, SE;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
A method, arrangement, and first access router in a packet-switched communication network for determining that a first endpoint originating a communication session with a second endpoint is not initiating a malicious man-in-the-middle attack. The first access router provides access for the first endpoint to the network and a second access router provides access for the second endpoint. The first and second access routers facilitate conducting a secure key exchange between the first and second endpoints, wherein a shared secret key is generated. The first access router utilizes a Prefix Reachability Detection (PRD) protocol to determine the first endpoint is topologically legitimate due to being topologically located behind the first access router, and then sends a Prefix Request Test Initialization (PRTI) message to the second access router indicating the first endpoint is topologically legitimate.