DEVICE FOR CRYPTOGRAPHIC INFORMATION PROTECTION Russian patent published in 2013 - IPC G06F21/00 H04L9/00 

FIELD: information technology.

SUBSTANCE: disclosed is a device for cryptographic information protection, having three AND elements, read-only memory, four shift registers and two counters with overflow triggers, characterised by that the device is built-in with an additional flip-flop, second ROM, a unit of group AND circuits, a decoder, a unit of OR circuits, a counter with an overflow trigger, an arithmetic logic unit and a self-controlled synchronisation unit, wherein the device for cryptographic information protection consists of series circuits of components and units in form of a first terminal, the self-controlled synchronisation unit having two input "Start" and "Stop" external terminals, and a second series circuit of units is formed from the output of the first ROM through a unit of AND circuits.

EFFECT: high level of cryptographic protection, while maintaining high speed of operation of the device hardware.

6 dwg, 6 tbl