Features of the formation of TEMPEST in a computer keyboard from the point of view of ensuring information security
The paper analyzes the possibilities of the formation of spurious electromagnetic radiation and interference in computer keyboards with the ps/2 interface, which can lead to information leaks. The dependences of the physical parameters of the PEMIN on the design features of the equipment used are established. Possible channels of unauthorized information retrieval, through the use of TEMPEST, are analyzed. Recommendations for the safe use of ps/2 keyboards in information systems are formed.