Cryptography – Communication system using cryptography – Time segment interchange
Patent
1996-06-28
1998-07-07
Barron, Jr., Gilberto
Cryptography
Communication system using cryptography
Time segment interchange
380 28, 380 42, H04L 906
Patent
active
057780749
ABSTRACT:
A system for generating variable substitution boxes from arbitrary keys for use in a block cipher system utilizes an initial set of linearly independent numbers to generate substitution tables. The initial set of linearly independent numbers is modulated with the bits of an arbitrary key through operations that result in final sets of linearly independent numbers to form the substitution tables. The system also includes an implementation which allows for rapid key changes for the crypto system by only generating portions of the substitution tables as needed for specific blocks of input data to be encrypted or decrypted,
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Garcken Knute T.
Kisylia Andrew Philip
Strawbridge Charles E.
Barron Jr. Gilberto
Teledyne Industries Inc.
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