Quantumxchange, Inc.

Eric Hay

Donald T Hayford

Nino Walenta

Gene Savchuk

Gary Benedetti

Aliki Marinos

John Prisco

Stacey Sweeney

Trusted nodes in a network perform secure out-of-band symmetric encryption key delivery to user devices. A first trusted node receives a request from a first user device to deliver symmetric encryption keys to the first user device and a second user device, as a pair of user devices. The first trusted node delivers a second symmetric encryption key to the second user device, via trusted nodes. The first trusted node receives confirmation of delivery of the second symmetric encryption key. Responsive to the confirmation of delivery, the first trusted node delivers the first symmetric encryption key to the first user device.

Secure out-of-band symmetric encryption key delivery

A trusted node, for quantum key distribution, has a quantum key engine, a quantum key controller and a trusted node controller. The quantum key engine exchanges quantum keys. The quantum key controller directs encryption and decryption. The trusted node controller directs the quantum key controller and the quantum key engine, and has no direct access to keys and data protected by the system, including unencrypted quantum keys.

Method of operation of a trusted node software in a quantum key distribution system

Growing community of inventors

Arlington, VA, United States of America

Eric Hay