Cryptography Reference
In-Depth Information
e.g., financial institutions, governmental organizations, militaries, and so
forth.
The DARPA Quantum Network has been in continuous operation in
BBN's laboratory since October 2003, and since June 2004 through dark fiber
linking the Harvard University, Boston University, and BBN campuses. It
currently consists of four interoperable QKD nodes designed for use through
telecommunications fiber and a passive photonic switch that interconnects
them; a high-speed free-space system designed and built by NIST; and a full
suite of production-quality QKD protocols running on all nodes. Key material
derived from these systems is integrated into the Internet security protocols
(IPsec) to protect user traffic.
Acknowledgments
We are deeply indebted to Dr. Mike Foster (DARPA IPTO) and Dr. Don Nichol-
son (Air Force Research Laboratory) who are the sponsor and the agent, re-
spectively, for this research project. We also thank Dr. Carl Williams and his
team at NIST for their generous long-term loan of their QKD system. This pa-
per reflects highly collaborative work between the project members. Of these,
particular credit is due to Professor Alexander Sergienko, Professor Gregg
Jaeger, and Dr. Martin Jaspan (Boston University), Dr. John Myers and Pro-
fessor Tai Wu (Harvard), and Alex Colvin, John Lowry, William Nelson, David
Pearson, Oleksiy Pikalo, John Schlafer, Greg Troxel, and Henry Yeh (BBN).
Our interest in QKD networks was sparked by the prior work of the quan-
tum cryptography groups at IBM Almaden and Los Alamos and discus-
sions with them, and by the kind hospitality of Dr. David Murley several
years ago.
References
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