Fingerprinting digital devices using electromagnetic characteristics of their communications
First Claim
Patent Images
1. A method of providing security associated with communications from a digital device, comprising:
- accessing an analog signal associated with communications from the digital device through a passive analog tap;
observing the analog signal associated with communications from the digital device;
characterizing the digital device at least partially based on the analog signal;
providing a security feature at least partially based on the step of characterizing.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and apparatus or systems for providing security based on innate characteristics of devices are disclosed. A method of providing security associated with communications from a digital device includes observing an analog signal associated with communications from the digital device, characterizing the digital device at least partially based on the analog signal, and providing a security feature at least partially based on the step of characterizing.
-
Citations
25 Claims
-
1. A method of providing security associated with communications from a digital device, comprising:
-
accessing an analog signal associated with communications from the digital device through a passive analog tap; observing the analog signal associated with communications from the digital device; characterizing the digital device at least partially based on the analog signal; providing a security feature at least partially based on the step of characterizing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. An apparatus for providing security related to communications from a digital device, comprising:
-
an analog tap configured to provide access to an analog signal associated with outputs of the digital device; a signal analysis component for providing an analysis of the analog signal associated with the digital device and accessed through the analog tap, wherein the analysis includes determining characteristics of the digital device based on the analog signal; a decision component for characterizing the analysis of the analog signal associated with the digital device and determining whether or not to activate a security feature based on policy functions. - View Dependent Claims (18, 19, 20, 21)
-
-
22. A system for providing security, comprising:
-
a controlled device having a controlled interface to a medium, the controlled interface comprising an analog tap; an analog-to-digital converter operatively connected to the controlled interface for receiving an analog signal and providing digital samples; a data selection and reduction component operatively connected to the analog-to-digital converter for receiving the digital samples and selectively storing selected or reduced digital samples within a storage component; an analysis component for analyzing the digital samples and determining characteristics of the controlled device based on the digital samples; a policy component for making decisions based on output from the analysis component. - View Dependent Claims (23, 24, 25)
-
Specification