Harris Corporation

Harris Global Communications, Inc.

Peter Bajorski

Michael Thomas Kurdziel

Alan R Kaminsky

Marcin Lukowiak

Steven M Farris

Stanislaw P Radziszowski

Stainslaw Radziszowski

Christopher Wood

A cross-domain information transfer system includes a key distribution center that generates private encryption keys and a signature key pair as a secret signing and secret verifying key for an attribute associated with a given domain. A sender device generates ciphertext from plaintext based upon the private encryption key, appends an attribute for a given domain to the ciphertext, generates ciphertext with a concealed attribute based upon the secret signing key and broadcasts the ciphertext with the concealed attribute. Domain gateway devices each receive a respective secret verifying key for an associated attribute, receive the ciphertext with the concealed attribute from the untrusted network, and use the secret verifying key to determine if the concealed attribute matches the attribute associated with the domain gateway device, and, when so, pass the ciphertext to at least one receiver device coupled with the domain gateway device.

Cross-domain information transfer system and associated methods

Method for distributing a group session cryptographic key includes initiating at least one pairwise key distribution session including a root node () and at least one communication node (-). The method further includes performing at a communication node which has received the group session cryptographic key a propagated pairwise key distribution session with at least one of the communication nodes which has not previously received said group session cryptographic key. The propagated pairwise key distribution sessions are performed at each of the communication nodes which subsequently receives the group session cryptographic key until the group session cryptographic key has been securely provided to all authorized communication nodes.

Electronic key management using PKI to support group key establishment in the tactical environment

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Fairport, NY, United States of America

Peter Bajorski