Transcription of Application Note: Xilinx FPGAs FPGA IFF Copy …
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Application Note: Xilinx FPGAs FPGA IFF Copy …
XAPP780 ( ) May 28, 1 Copyright 2005 2010 Xilinx , Inc. Xilinx , the Xilinx logo, Virtex, Spartan, ISE, and other designated brands included herein are trademarks of Xilinx in the United States and other countries. All other trademarks are the property of their respective Application note describes a cost-optimized copy protection scheme that helps protect an FPGA against cloning. The design leverages an external secure serial EEPROM, such as the Dallas Semiconductor/Maxim DS2432 (1 kbit protected 1-wire EEPROM with SHA-1 engine). The included reference design uses an optimized PicoBlaze 8-bit microcontroller. This Application note provides a hardware design with associated PicoBlaze software code. The code loads a secret key into the secure EEPROM and authenticates the user system with the secure :This Application note is provided for demonstration purposes only.
2 www.xilinx.com XAPP780 (v1.1) May 28, 2010 R 4. If the expected and actual responses match, the design is a Friend. Otherwise the design is labeled as a Foe because tampering might have occurred with the system.
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