SHE Secure Hardware Extension - ESCRYPT
SHE Secure Hardware Extension - ESCRYPT
SHE Secure Hardware Extension - ESCRYPT
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>SHE</strong> – Perspective from Specification (5)<br />
� ROM carries<br />
� SECRET_KEY<br />
• Unique key<br />
• Used for im-/export<br />
of all other keys<br />
• Has to be created<br />
with true random<br />
number generator<br />
(off-chip TRNG )<br />
at production<br />
� UID<br />
• Unique identifier<br />
• Authenticates MCU<br />
INTERNAL USE ONLY<br />
RAM<br />
� Both SECRET_KEY and UID have to be fixed at production time<br />
• 16 byte for SECRET_KEY and ≤15 byte for UID<br />
19<br />
Crypto-<br />
graphy<br />
NV-Memory<br />
Copyright 2012 FUJITSU SEMICONDUCTOR EUROPE GMBH
Change language