Patent ID: 9516025
Filing Date: 2016-12-06
CPC Classification: H04L

Claim Text:
1. A method, comprising: receiving, from a border router, one or more network keys at a dynamically selected key-delegation node in a computer network, wherein the dynamically selected key-delegation node is dynamically selected based on a location of one or more authentication-delayed nodes in a Low power and Lossy Network (LLN); receiving, from one or more authentication requesting nodes in the computer network, an authentication request at the dynamically selected key-delegation node; distributing, to the one or more authentication requesting nodes, the one or more network keys in response to the authentication request at the dynamically selected key-delegation node; forwarding, by the dynamically selected key-delegation node, the authentication request from the one or more authentication requesting nodes to an authentication server via the border router; and receiving, from the authentication server via the border router, an authentication reply, at the dynamically selected key-delegation node, wherein the authentication reply is either confirmation or rejection of authentication, wherein when the authentication reply is a rejection, authenticated nodes are prevented from choosing a particular authentication requesting node as a parent in a directed acyclic graph (DAG).