Guard spot beams to deter satellite-based authentication system spoofing
First Claim
1. A transmission-based authentication system, the system comprising:
- at least one transmitter, wherein the at least one transmitter transmits an authentication beam and at least one guard beam,wherein the at least one transmitter is employed in at least one of at least one satellite and at least one pseudo-satellite, andwherein the at least one satellite is at least one of a Lower Earth Orbiting (LEO) satellite, a Medium Earth Orbiting (MEO) satellite, and a Geosynchronous Earth Orbiting (GEO) satellite; and
at least one receiver, wherein the at least one receiver receives at least one resultant signal, wherein the at least one resultant signal includes the authentication beam and at least one of the at least one guard beam; and
at least one authenticator device, wherein the at least one authenticator device authenticates at least one claimant by evaluating the at least one resultant signal the at least one claimant receives from the at least one receiver.
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Accused Products
Abstract
A transmission-based authentication system and method to prevent an unauthorized claimant from tracking a signal are disclosed herein. In one or more embodiments, the method involves transmitting, from at least one transmission source, a plurality of authentication signals. The method further involves receiving, from at least one receiving source, a resultant signal that includes at least two of the authentication signals. Further, the method involves authenticating, with at least one authenticator device, at least one claimant by comparing properties of the resultant signal the claimant receives from the receiving source location(s) to expected properties of the resultant signal that the claimant should receive from the receiving source location(s). The properties that are compared are signal power, doppler shift, time of reception, and/or signal modulation. The transmission source(s) is employed in at least one satellite and/or at least one pseudo-satellite.
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Citations
20 Claims
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1. A transmission-based authentication system, the system comprising:
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at least one transmitter, wherein the at least one transmitter transmits an authentication beam and at least one guard beam, wherein the at least one transmitter is employed in at least one of at least one satellite and at least one pseudo-satellite, and wherein the at least one satellite is at least one of a Lower Earth Orbiting (LEO) satellite, a Medium Earth Orbiting (MEO) satellite, and a Geosynchronous Earth Orbiting (GEO) satellite; and at least one receiver, wherein the at least one receiver receives at least one resultant signal, wherein the at least one resultant signal includes the authentication beam and at least one of the at least one guard beam; and at least one authenticator device, wherein the at least one authenticator device authenticates at least one claimant by evaluating the at least one resultant signal the at least one claimant receives from the at least one receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for a transmission-based authentication system, the method comprising:
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transmitting, from at least one transmission source, a plurality of authentication beams, wherein the at least one transmission source is employed in at least one of at least one satellite and at least one pseudo-satellite, and wherein the at least one satellite is at least one of a Lower Earth Orbiting (LEO) satellite, a Medium Earth Orbiting (MEO) satellite, and a Geosynchronous Earth Orbiting (GEO) satellite; and receiving, from at least one receiving source, at least one resultant signal that includes at least two of the authentication beams; and authenticating at least one claimant by comparing properties of the at least one resultant signal the at least one claimant receives from the at least one receiving source location to expected properties of the at least one resultant signal that the at least one claimant should receive from the at least one receiving source location. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification