The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 25, 2026

Filed:

Dec. 06, 2024
Applicant:

The Arizona Board of Regents on Behalf of Northern Arizona University, Flagstaff, AZ (US);

Inventor:

Bertrand F. Cambou, Flagstaff, AZ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04L 9/0858 (2013.01);
Abstract

Methods and systems for performing secure quantum key distribution (QKD) while detecting photon interception and eavesdropping. A first computing device generates a challenge set using a secret seed, applies the challenges to its CRP, and receives an ordered set n responses. Those responses are sent under a QKD protocol. The second computing device generates the same challenges and recovers the same responses with a mirror CRP mechanism. The second device identifies generated responses that match received responses. Bit errors in these matching response pairs provide a measured of BER on the channel. BER that is significantly above a nominal BER indicates eavesdropping.


Find Patent Forward Citations

Cambou, Bertrand. (2026). Detecting eavesdropping in long distance quantum key distribution (U.S. Patent No. 12719667). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12719667

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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