CONTROLLED OPERATING BLOCK Russian patent published in 2004 - IPC

FIELD: electrical communications and computer engineering.

SUBSTANCE: proposed operating block designed for use in cryptographic methods and devices for protecting information transferred over telecommunication networks functions to convert binary data and has s ≥ 2 active stages each incorporating k ≥ 2 controlled items provided with t-bit data input and output, as well as w-bit control input, where t = 2, 3 and w = 1, 2, w + t = 4 condition being fulfilled for one of controlled items; active stages have controlled items provided with two-bit control inputs; active stage incorporates controlled items provided with both three-bit and two-bit data inputs, and active stage includes controlled items provided with both two-bit and single-bit data inputs.

EFFECT: enhanced data processing speed using programmable logic arrays such as field-programmable gate arrays.

5 cl, 33 dwg