METHOD OF PROTECTING INFORMATION CIRCULATING IN INFORMATION PROCESSING SYSTEM USING DIGITAL ELECTRONIC DEVICES Russian patent published in 2010 - IPC G06F21/20 G06F3/23 

FIELD: information technology.

SUBSTANCE: information processing system undergoes analysis in order to detect information circuits which are most vulnerable in terms of information protection from leakage due to stray electromagnetic radiation and noise pickup (SERNP), in which digital electronic devices are connected by a single-bit communication line to their transmitting and receiving sides respectively. In each information circuit with stray electromagnetic radiation and noise pickup, transmission of digital signals between devices over the single-bit communication line is stopped. The series of digital signals coming from the digital electronic device of the transmitting side of the information circuit which corresponds to a serial code is converted to a series of generated digital signals, which corresponds to a parallel code which is transmitted over the single-bit communication line to the receiving side, where the series of digital signals transmitted in parallel is first converted to a series of digital signals corresponding to a serial code, and after conversion, entered into the digital electronic device of the receiving side of the information circuit.

EFFECT: more efficient protection of information circulating in channels of an information processing system from leakage due to stray electromagnetic radiation and noise pickup.

3 cl, 6 dwg