Copyright © Intellitech Corp. 2010. All rights reserved.
PROM
Maxim
DS28E01
JTAG
JTAG
SHA1
SHA1
Common key
1-wire
Security initiated by FPGA
Program both FPGA
and pre-program Maxim
Device with 64 bit
SHA1 Key
Some logistics for
manufacturing required
for OBP over 1-wire
- keys exposed to CM
Trojan in PROM
- PROM/FLASH open to
non-authenticated bitstream
Key
Key
USER
DESIGN
Design
Enable
FPGA