MULTI-FACTOR DEVICE AUTHENTICATION

摘要

A method and system for the secure delivery of data to a remote device that has been registered and which requires authentication through the use of a multifactor signature profile is disclosed, and in particular according to certain disclosed aspects, a method and system for ensuring that an authenticated remote device remains authenticated.

主权项

1. A computerized method for authenticating a media playback device across a computer network, comprising the steps of:
determining, at a multi-factor authentication device capable of communicating with said media playback device across said computer network, the identity and number of intermediate hops across said network between said media playback device and said multi-factor authentication device; forming an initial multi-factor installation signature based on a result of said determining step; recording said initial multi-factor installation signature on a device accessible across said computer network; determining a subsequent multi-factor installation signature based on the identity and number of intermediate hops across said network between said media playback device and said multi-factor authentication device; comparing said subsequent multi-factor installation signature against said initial multi-factor installation signature to define an installation signature change profile; and generating an alarm signal at said multi-factor authentication device, indicating whether said installation signature change profile satisfies a change profile tolerance criterion.