Optical out-of-band key distribution
First Claim
Patent Images
1. An out-of-band communication system comprising:
- an encrypted data path that is configured to convey encrypted data; and
an optical out-of-band channel that is physically distinct from the encrypted data path, the optical out-of-band channel extends between an optical transmitter and an optical receiver, the optical out-of-band channel is configured to transmit key information from the optical transmitter to the optical receiver.
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Abstract
One aspect of the disclosure relates to an out-of-band communication system and associated process. The out-of-band communication system includes an encrypted data path that is configured to convey encrypted data. The out-of-band communication system includes an optical out-of-band channel that is physically distinct from the encrypted data path. The encrypted data path extends between an optical transmitter and an optical receiver. The optical out-of-band channel is configured to transmit key information from the optical transmitter to the optical receiver.
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Citations
36 Claims
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1. An out-of-band communication system comprising:
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an encrypted data path that is configured to convey encrypted data; and
an optical out-of-band channel that is physically distinct from the encrypted data path, the optical out-of-band channel extends between an optical transmitter and an optical receiver, the optical out-of-band channel is configured to transmit key information from the optical transmitter to the optical receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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- 17. A method of using out-of-band signaling to transmit and receive key information associated with an encryption key over an optical out-of-band channel, wherein the key information is transmitted at least in part in optical form.
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24. A computer readable medium that can be accessed by a general purpose computer, the computer readable medium having computer executable instructions for causing the general purpose computer to perform a method comprising:
using out-of-band signaling to transmit and receive key information associated with an encryption key over an out-of-band channel. - View Dependent Claims (25, 26, 27, 30, 31, 33, 34, 35, 36)
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28. A method comprising:
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using out-of-band signaling to transmit and receive key information associated with an encryption key over an out-of-band channel;
receiving the key information at a peripheral device over a first optical out-of-band channel; and
transmitting the key information by the peripheral device over a second out-of-band channel.
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29. An out-of-band communication system comprising:
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an encrypted data path that is configured to convey encrypted data;
a first optical out-of-band channel that is physically distinct from the encrypted data path, the first optical out-of-band channel extends between a first optical transmitter and a first optical receiver, the first optical out-of-band channel is configured to transmit key information from the first optical transmitter to the first optical receiver;
a second optical out-of-band channel that is physically distinct from the encrypted data path, the second optical out-of-band channel extends between a second optical transmitter and a second optical receiver, the second optical out-of-band channel is configured to transmit key information from the second optical transmitter to the second optical receiver; and
a peripheral device including the first optical receiver and the second optical transmitter.
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32. An apparatus, comprising
an optical detector configured to receive key information in the form of an light; - and
a close-coupling device that reduces the light intended to be received by the optical detector from traveling to locations wherein the light could be detected by unintended persons or unintended detection media.
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Specification