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:
Oct. 27, 2026

Filed:

Feb. 01, 2024
Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Mohammad Saidur Rahman, Los Angeles, CA (US);

Stephen Diadamo, Munich, DE;

Miralem Mehic, Sarajevo, BA;

Charles E. Fleming, Oxford, MS (US);

Assignee:

CISCO TECHNOLOGY, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01); H04L 9/40 (2022.01);
U.S. Cl.
CPC ...
H04L 9/0855 (2013.01); H04L 9/0819 (2013.01); H04L 63/0421 (2013.01);
Abstract

An embodiment provides a quantum-resistant technique for distributing symmetric or other keys (e.g., in quantum key distribution (QKD), etc.). The embodiment pertains to a protocol and network architecture that integrates QKD without the need for trusted nodes, thereby meeting the requirements of the Tor or other anonymous communication network and creating a quantum-secure anonymous communication network. The embodiment re-designs the key establishment and exchange mechanisms of Tor to incorporate QKD, and provides a theoretical guarantee of security against quantum-powered adversaries (QPAs) while meeting all network or system requirements.


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Rahman, Mohammad. (2026). Quantum secure anonymous communication networks (U.S. Patent No. 12776900). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12776900

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