Patent ID: 9219722
Filing Date: 2015-12-22
Classification: G06F,H04L

Abstract:
1. A computer implemented method for authenticating a node in an electronic communications system, the method comprising: receiving an authentication request from a node; transmitting a generating challenge to the node, wherein the generating challenge prompts the node to generate a first code representing an output of a first encryption challenge having inputs that include a random value and a first intrinsic ID based on an intrinsic feature, wherein the first encryption challenge is an invertible function; receiving the first code from the node in response to the generating challenge; generating a second code as an extracted value from an inverse function, wherein the second code represents an output of a second encryption challenge having inputs that include at least two of: the first code, the random value, and a second intrinsic ID, wherein the second intrinsic ID is obtained from a source other than the node, and wherein the random value comprises one of an external value transmitted to the node and the electronic communications system, or a value generated in each of the electronic communications system and the node using a same seed input; and authenticating the node, using a check function, based on one or more of: