Patent ID: 8695068
Filing Date: 2014-04-08
Classification: G06F,H04L

Abstract:
1. A method for identifying a remotely located device, the method comprising: receiving device identification data from the device, wherein the device identification data includes: determining that the device identifier identifies the device; comparing the pixel irregularity data to corresponding reference pixel irregularity data previously stored for the device; determining that the pixel irregularity data is consistent with the corresponding reference pixel irregularity data if the pixel irregularity data (i) does not indicate less pixel irregularity than the reference pixel irregularity data, (ii) does not indicate the absence of any pixel irregularity previously observed in the reference pixel irregularity data, and (iii) does not indicate greater pixel irregularity than the reference pixel irregularity data by more than a predetermined rate of deterioration; and authenticating the device as a recognized device upon determining that the pixel irregularity data is consistent with the corresponding reference pixel irregularity data.