Harris Corporation

Harris Global Communications, Inc.

Harris Solutions Ny, Inc.

Stanislaw P Radziszowski

Michael Thomas Kurdziel

Alan R Kaminsky

Marcin Lukowiak

Steven M Farris

Peter Bajorski

Stephanie Soldavini

Daniel F Stafford

Matthew Kelly

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

Systems () and methods () for customizing a cryptographic algorithm. The methods comprise: providing an electronic device with the cryptographic algorithm implementing a permutation function &#x192; configured to produce a first keystream using bits input thereto, the permutation function &#x192; comprising a round function &#x192;consisting of a mixing layer in which input bits are combined together; and customizing the mixing layer of the permutation function &#x192; while the electronic device is in the field. The mixing layer is customized by: receiving, by the electronic device, a first user-software interaction for entering a first bit string comprising a plurality of first arbitrary bits; breaking the first bit string into a plurality of equal length segments each comprising only a portion of the plurality of first bits; and translating each of the equal length segments into irreducible polynomial coefficients and/or an irreducible polynomial identifier.

Customizable encryption/decryption algorithm

Systems () and methods () for generating encrypted data. The methods involve: combining a cryptographic key with state initialization bits to generate first combination bits; producing a first keystream by performing a permutation function &#x192; using the first combination bits as inputs thereto; and using the first keystream to encrypt first data (e.g., authentication data or message body data) so as to produce first encrypted data. The permutation function &#x192; comprises a round function &#x192;that is iterated R times. The round function &#x192;consists of (1) a substitution layer in which the first combination bits are substituted with substitute bits, (2) a permutation layer in which the substitute bits are re-arranged, (3) a mixing layer in which multiple of the permutation layer are combined together, and (4) an addition layer in which a constant is added to the output of the mixing layer.

Customizable encryption algorithm based on a sponge construction with authenticated and non-authenticated modes of operation

Growing community of inventors

West Henrietta, NY, United States of America

Stanislaw P Radziszowski