7.8 Methods for Controlling Safety …
709
Power on
Authentication unit records the secret key in
DS28E01
Coincidence
No
Yes
Operation of the user project is
enabled
Operation of the user
project remains
disabled
Microcircuit configuration by product from the
development example (authentication unit + user
project)
Algorithm of project protection using SHA-1
Fig. 7.24 Operation algorithm of a secret key programming project [97]
7.8 Methods for Controlling Safety of Microcircuits After
Their Production
7.8.1 Introduction to the Problem
World trends in reducing design norms along with the trend of integrating several
computation cores within a single chip have lead to a significant increase in IC
complexity. The microcircuits designed and manufactured today require application
of expensive complex and complicated process operations, which in turn require
using extremely costly and precise technologies and equipment. It is known that
annual costs of updating and maintaining production capacities with modern semiconductor technology already amount to milliards of dollars and keep increasing
inevitably. They are considered to be the most complex production plants ever built
by humanity.
Over the last 30 years, with the ever-increasing costs, business model of semiconductor industry has fully transformed into the business model of third-party
709
Power on
Authentication unit records the secret key in
DS28E01
Coincidence
No
Yes
Operation of the user project is
enabled
Operation of the user
project remains
disabled
Microcircuit configuration by product from the
development example (authentication unit + user
project)
Algorithm of project protection using SHA-1
Fig. 7.24 Operation algorithm of a secret key programming project [97]
7.8 Methods for Controlling Safety of Microcircuits After
Their Production
7.8.1 Introduction to the Problem
World trends in reducing design norms along with the trend of integrating several
computation cores within a single chip have lead to a significant increase in IC
complexity. The microcircuits designed and manufactured today require application
of expensive complex and complicated process operations, which in turn require
using extremely costly and precise technologies and equipment. It is known that
annual costs of updating and maintaining production capacities with modern semiconductor technology already amount to milliards of dollars and keep increasing
inevitably. They are considered to be the most complex production plants ever built
by humanity.
Over the last 30 years, with the ever-increasing costs, business model of semiconductor industry has fully transformed into the business model of third-party