MULTICHANNEL SIGNATURE ANALYZER Russian patent published in 1999 - IPC

FIELD: computer engineering; information protection systems. SUBSTANCE: device has signature shaper and control unit. In addition, analyzer is provided with two information converting units. Conversion algorithm is used to divide input information train into blocks and to encode each word and each block. As distinct from standard encoding algorithms involving replacement for separate code words and blocks, in proposed device word or block conversion (encoding) result depends not only on word or block code but also on their position in word train or block being converted. EFFECT: improved validity of check when deliberate distortion of information is detected. 7 dwg, 1 tbl