Cryptographic device and associated methods

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7613295
APP PUB NO 20050180565A1
SERIAL NO

10780848

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Abstract

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A cryptographic device includes an input stage receiving an input data block and a key data block made up of a plurality of sub-key data blocks, and generating a plurality of first signals therefrom. An intermediate stage is connected to the input stage and includes a plurality of substitution units. Each substitution unit substitutes data within a respective first signal. A diffuser is connected to the plurality of substitution units for mixing data to generate a diffused signal. An output stage is connected to the intermediate stage for repetitively looping back the diffused signal to the input stage for combination with a next sub-key data block. The output stage provides an output signal for the cryptographic device after the repetitively looping back is complete.

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Patent Owner(s)

Patent OwnerAddress
HARRIS CORPORATION1025 W NASA BLVD MELBOURNE FL 32919

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dennis, Gary Roger Rochester , US 2 16
Kurdziel, Michael Thomas Rochester , US 13 81

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