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STREAMING AUTHENTICATION AND MULTI-LEVEL SECURITY FOR COMMUNICATIONS NETWORKS USING QUANTUM CRYPTOGRAPHY

United States Patent Application

20160248586
A1
View the Complete Application at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
Message authenticators for quantum-secured communications facilitate low-latency authentication with assurances of security. Low-latency message authenticators are especially valuable in infrastructure systems where security and latency constraints are difficult to satisfy with conventional non-quantum cryptography. For example, a message transmitter receives a message and derives an authentication tag for the message based at least in part on an authenticator that uses one or more quantum keys. The message transmitter outputs the message and its authentication tag. A message receiver receives a message and authentication tag for the message. The message receiver derives a comparison tag for the message based at least in part on an authenticator that uses one or more quantum keys. The message receiver checks whether the message is authentic based on a comparison of the authentication tag and the comparison tag. In example implementations, the authenticator uses stream-wise cyclic redundancy code operations.
HUGHES, Richard John (Los Alamos, NM), NORDHOLT, Jane Elizabeth (Los Alamos, NM), PETERSON, Charles Glen (Los Alamos, NM), TYAGI, Kush T. (Los Alamos, NM), WIPF, Christopher C. (Los Alamos, NM), NEWELL, Raymond Thorson (Santa Fe, NM), MCCABE, Kevin P. (Los Alamos, NM), DALLMANN, Nicholas (Los Alamos, NM)
15/ 026,024
September 30, 2014
ACKNOWLEDGMENT OF GOVERNMENT SUPPORT [0003] This invention was made with government support under Contract No. DE-AC52-06NA25396 awarded by the U.S. Department of Energy. The government has certain rights in the invention.