Patent ID: 8509438
Filing Date: 2013-08-13
Classification: H04L

Abstract:
1. A node of a wireless communications network, the node being remote from a master node of the wireless communications network, the master node and the node communicating via the wireless communications network, the node comprising: a wireless communications interface for communicating via the wireless communications network; a primary key for encrypting and decrypting messages in accordance with a symmetric key encryption algorithm; a secondary key for encrypting and decrypting messages in accordance with the symmetric key encryption algorithm; and a processor that operates to: wherein the processor locally generates the primary key based at least in part on a combination of a primary seed value and an identifier that uniquely identifies the node on the wireless communications network, and wherein the processor locally generates the secondary key based at least in part on a combination of a secondary seed value and the identifier that uniquely identifies the node on the wireless communications network, and wherein the primary seed value and the secondary seed value are stored locally within a memory of the node.