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:
Dec. 08, 2015
Filed:
Jul. 12, 2012
Philip Ginzboorg, Espoo, FI;
Kari J. Leppanen, Helsinki, FI;
Pentti Valtteri Niemi, Rymattyla, FI;
Markku T. Turunen, Helsinki, FI;
Philip Ginzboorg, Espoo, FI;
Kari J. Leppanen, Helsinki, FI;
Pentti Valtteri Niemi, Rymattyla, FI;
Markku T. Turunen, Helsinki, FI;
Nokia Technologies Oy, Espoo, FI;
Abstract
Message authentication in an ad-hoc network. Upon creation of a message, a message authentication code is created using a key shared with members of a group comprising a subset of nodes of the ad-hoc network. The message authentication code may be created using a cryptographic process having the message and a message identifier as inputs. After or in parallel with broadcast of the message, a pointer to the message is broadcast. The message authentication code is publicly broadcast and those members of the group among which the key has been shared are able to authenticate the message as coming from a particular sender.