Signal fingerprinting for authentication of communicating devices
First Claim
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1. A method comprising:
- receiving, by a waveguide system, electromagnetic waves at a physical interface of a transmission medium that propagate without utilizing an electrical return path, wherein the electromagnetic waves are guided by the transmission medium, and wherein the electromagnetic waves have a non-optical frequency range; and
determining whether the electromagnetic waves are being received from a second network device according to a fingerprint of the electromagnetic waves,wherein the determining whether the electromagnetic waves are being received from the second network device comprises;
determining, by the waveguide system, a difference between the fingerprint and an expected fingerprint of expected parameters for the electromagnetic waves transmitted by the second network device; and
responsive to the determining of the difference, requesting an authentication of the second network device.
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Abstract
Aspects of the subject disclosure may include, for example, accessing a profile including an expected fingerprint of expected parameters for received signals associated with a network path comprising a wired connection between network devices, comparing a fingerprint with the expected fingerprint where the fingerprint is generated from parameters measured from a signal, and authenticating a network device along the network path associated with the transmitting of the signal according to the comparing. Other embodiments are disclosed.
2666 Citations
20 Claims
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1. A method comprising:
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receiving, by a waveguide system, electromagnetic waves at a physical interface of a transmission medium that propagate without utilizing an electrical return path, wherein the electromagnetic waves are guided by the transmission medium, and wherein the electromagnetic waves have a non-optical frequency range; and determining whether the electromagnetic waves are being received from a second network device according to a fingerprint of the electromagnetic waves, wherein the determining whether the electromagnetic waves are being received from the second network device comprises; determining, by the waveguide system, a difference between the fingerprint and an expected fingerprint of expected parameters for the electromagnetic waves transmitted by the second network device; and responsive to the determining of the difference, requesting an authentication of the second network device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A device comprising:
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a processor; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising; accessing a profile including an expected fingerprint of expected parameters for reflected signals associated with a transmission along a wired network path; comparing a fingerprint with the expected fingerprint, wherein the fingerprint is generated from parameters measured from a reflected signal; determining a device topology along at least a portion of the wired network path according to the comparing; transmitting a test signal to a second communication device along the wired network path, wherein the reflected signal is associated with the test signal, and wherein the profile is associated with the second communication device; and authenticating the second communication device according to the comparing of the fingerprint with the expected fingerprint. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A non-transitory machine-readable storage device comprising instructions, which when executed by a processor cause the processor to perform operations comprising:
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accessing a profile including an expected fingerprint of expected parameters for received signals associated with a network path comprising a wired connection between network devices; comparing a fingerprint with the expected fingerprint, wherein the fingerprint is generated from parameters measured from a signal; and authenticating a network device along the network path associated with transmitting of the signal according to the comparing, wherein the authenticating of the network device comprises; determining a difference between the fingerprint and the expected fingerprint according to the comparing; responsive to the determining of the difference, requesting an authentication of the network device along the network path; and responsive to the authentication; determining that the network device is an unauthorized device along the network path according to an authentication failure by the network device;
orreceiving a revised profile including a revised expected fingerprint of revised expected parameters for received signals associated with the network path according to an authentication success by the network device. - View Dependent Claims (17, 18, 19, 20)
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Specification