公开(公告)号：US09706399B2

公开(公告)日：2017-07-11

申请号：US14063177

申请日：2013-10-25

Applicant: Nokia Technologies Oy

Inventor： Kari J. Leppänen ,  Markku T. Turunen ,  Philip Ginzboorg ,  Pentti Valtteri Niemi ,  Hamza Harkous

IPC: H04W12/06 ,  H04L29/06 ,  H04W12/04 ,  H04L9/08 ,  H04L9/32

CPC classification number: H04W12/06 ,  H04L9/0872 ,  H04L9/0891 ,  H04L9/3242 ,  H04L63/065 ,  H04L2209/42 ,  H04L2209/80 ,  H04W12/04

Abstract: Systems and techniques for key management in mobile ad hoc networks are described. Pseudonyms are defined for group members of mobile ad hoc networks such that a pseudonym in a message can be deterministically identified with the sending device only by the sending device and the message recipient. Key management for a group is performed by a group manager, and key management may include key renewal and revocation. Key renewal is performed by a group manager, with the group manager using a set of couple pseudonyms, including a couple pseudonym between the manger and each group member. Key renewal employs a renewal key used to encrypt the updated group key, and the group manager updates the group key be transmitting a message to each group member in proximity, with the message being identified using the couple pseudonym of the manager and the group member.