US Patent No. 9,942,033

CRYPTOGRAPHIC DEVICE WITH DETACHABLE DATA PLANES


Patent No. 9,942,033
Issue Date April 10, 2018
Title Cryptographic Device With Detachable Data Planes
Inventorship Richard Norman Winslow, Wilmington, DE (US)
Frank A. Costantini, Woolwich Township, NJ (US)
Assignee L3 TECHNOLOGIES, INC., New York, NY (US)

Claim of US Patent No. 9,942,033

1. A cryptographic configuration device configured to load one or more cryptographic keys onto one or more removeable encryption/decryption (E/D) devices, the cryptographic configuration device comprising:one or more child interfaces, wherein each child interface is configured to allow one or more removeable E/D devices to be physically connected to the cryptographic configuration device during the configuration of the one or more removeable E/D devices to perform one or more data plane cryptographic functions;
secure tamper memory, wherein the secure tamper memory is configured to store one or more secret keys, and clear memory contents based on operating without power for more than a configured amount of time; and
a microprocessor configured to:
perform one or more control plane cryptographic functions for the one or more secret keys, the one or more control plane cryptographic functions comprising a fail-safe key management function,
derive one or more session keys based on the one or more secrets keys using one or more of a one-way function or internally generated random data bits, and
load the one or more session keys onto the one or more removeable E/D devices while the one or more removeable E/D devices are physically connected to the cryptographic configuration device via the one or more child interfaces.