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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:
; ;
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1167020
Patent Number(s):
8929554
Application Number:
13/912,010
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM)
Patent Classifications (CPCs):
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04W - WIRELESS COMMUNICATION NETWORKS
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Jun 06
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Hughes, Richard John, Nordholt, Jane Elizabeth, and Peterson, Charles Glen. Secure multi-party communication with quantum key distribution managed by trusted authority. United States: N. p., 2015. Web.
Hughes, Richard John, Nordholt, Jane Elizabeth, & Peterson, Charles Glen. Secure multi-party communication with quantum key distribution managed by trusted authority. United States.
Hughes, Richard John, Nordholt, Jane Elizabeth, 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/1167020.
@article{osti_1167020,
title = {Secure multi-party communication with quantum key distribution managed by trusted authority},
author = {Hughes, Richard John and Nordholt, Jane Elizabeth 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 = {2015},
month = {1}
}

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