Security News > 2020 > August > Army researchers awarded patent for secure comms

Army researchers have been awarded a patent for inventing a practical method for Army wireless devices to covertly authenticate and communicate.

The researchers, including Drs. Paul Yu and Brian Sadler from the U.S. Army CCDC's Army Research Laboratory and Prof. Rick Blum and Dr. Jake Perazzone from Lehigh University, have invented a method to perform two tasks simultaneously: verifying the authenticity of wireless communications and communicating secret information.

The invention utilizes a shared key to create a secret code book, which is used to achieve authentication and establish an additional secure communications channel, Yu said.

"A secret key is used to generate a low-rate secret code book that is used to provide both authentication of a primary message and side-channel communication of a secure secondary message," Sadler said.

"The secure secondary message can be used to help communicate new key information to fluidly evolve the key over time to maintain an adversary's confusion."

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