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A Cross-Layer Approach to Securing Wireless Communications
Dina Katabi (MIT)
The traditional approach to communication security relies mainly on
cryptographic protocols. The difficulty with this approach stems from
the need for key distribution, a process known to be hard and in some
cases infeasible. In this talk, we show that it is possible to design
the communication signal to strengthen cryptographic methods and
alleviate the need for prior key distribution. In particular, we
demonstrate a cross-layer design that can secure medical implants
without access to the implant itself. We also use a cross-layer design
to deliver the first in-band protocol that establishes secure wireless
connections without requiring users to enter passwords or have secret
keys. |
