KEY INFORMATION INPUT AND STORAGE DEVICE Russian patent published in 2001 - IPC

FIELD: communications engineering. SUBSTANCE: device designed for input and storage of secret information including that of cipher keys has clock generator, random-access memory unit, contact device with peripheral medium, buffer register, area number register, area number switch, output unit, address transmitter, start/reset unit, input/output control unit, identifying unit, random pulse generator, check-group comparison unit, and command transmitter. EFFECT: reduced probability of cipher key compromising due to masking by device-generated random sequence. 16 dwg