skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Secure multi-party communication with quantum key distribution managed by trusted authority

Abstract

Techniques and tools for implementing protocols for secure multi-party communication after quantum key distribution ("QKD") are described herein. In example implementations, a trusted authority facilitates secure communication between multiple user devices. The trusted authority distributes different quantum keys by QKD under trust relationships with different users. The trusted authority determines combination keys using the quantum keys and makes the combination keys available for distribution (e.g., for non-secret distribution over a public channel). The combination keys facilitate secure communication between two user devices even in the absence of QKD between the two user devices. With the protocols, benefits of QKD are extended to multi-party communication scenarios. In addition, the protocols can retain benefit of QKD even when a trusted authority is offline or a large group seeks to establish secure communication within the group.

Inventors:
; ;
Publication Date:
Research Org.:
LANL (Los Alamos National Laboratory (LANL), Los Alamos, NM (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1087902
Patent Number(s):
8,483,394
Application Number:
12/895,367
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM)
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 47 OTHER INSTRUMENTATION

Citation Formats

Nordholt, Jane Elizabeth, Hughes, Richard John, and Peterson, Charles Glen. Secure multi-party communication with quantum key distribution managed by trusted authority. United States: N. p., 2013. Web.
Nordholt, Jane Elizabeth, Hughes, Richard John, & Peterson, Charles Glen. Secure multi-party communication with quantum key distribution managed by trusted authority. United States.
Nordholt, Jane Elizabeth, Hughes, Richard John, and Peterson, Charles Glen. Tue . "Secure multi-party communication with quantum key distribution managed by trusted authority". United States. https://www.osti.gov/servlets/purl/1087902.
@article{osti_1087902,
title = {Secure multi-party communication with quantum key distribution managed by trusted authority},
author = {Nordholt, Jane Elizabeth and Hughes, Richard John and Peterson, Charles Glen},
abstractNote = {Techniques and tools for implementing protocols for secure multi-party communication after quantum key distribution ("QKD") are described herein. In example implementations, a trusted authority facilitates secure communication between multiple user devices. The trusted authority distributes different quantum keys by QKD under trust relationships with different users. The trusted authority determines combination keys using the quantum keys and makes the combination keys available for distribution (e.g., for non-secret distribution over a public channel). The combination keys facilitate secure communication between two user devices even in the absence of QKD between the two user devices. With the protocols, benefits of QKD are extended to multi-party communication scenarios. In addition, the protocols can retain benefit of QKD even when a trusted authority is offline or a large group seeks to establish secure communication within the group.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {7}
}

Patent:

Save / Share: