4.1 Basis of Designing Safe Electronic …
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A channel for leakage of secret
information and receipt of control
information is formed
The possibility of deactivating or
destroying the microcircuit, sending
invalid data to processing,
deletion/distortion of the memory
devcie contents is implemented
The intruder can place an RF unit on a manufactured chip
An implant of this type in passive state does not affect
functions of the chip and is therefore extremely difficult to
detect
Infected microcircuit (with
implant)
RF unit
Fig. 4.1 Malicious actions of hardware Trojans with built-in radio frequency unit
Fig. 4.2 A fragment of topology of an infected microcircuit
Figure 4.2 shows an example of a local area of source microcircuit topology
with an introduced Trojan. Even a non-professional would understand that finding
this miniature fragment among hundreds of thousands of transistors is virtually
impossible.
At the moment required by the intruder (a month, a week, or even several years
later), this Trojan will activate, implementing its main function. The consequences
of its introduction can be extremely unpleasant for the user of the infected system—
from the onboard computer failure to the unauthorized detonation of a ballistic missile
(Fig. 4.3).
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