MAXREFDES43#: Secure Authentication Design with I2C SHA-256 (MAXREFDES43)
The MAXREFDES43# is an I2C-based authentication reference design, built to authenticate peripherals to Xilinx® FPGAs. Using the provided example code, the FPGA executes a challenge-response sequence with the DS28C22 to ensure the authenticity of a module, peripheral, or subsystem. The DS28C22 communicates on an I2C bus, providing a standard communication interface. The MAXREFDES43# is equipped with a Pmod™ connector for immediate testing using an Avnet ZedBoard™. The simplicity of this design enables rapid adoption into any peripheral requiring security.
Refer to the Details tab for more information. Design files including schematic, PCB files, and bill of materials (BOM) can be downloaded from the Design Resources tab. Firmware is available upon request, following the execution of a nondisclosure agreement.
- SHA-256 authentication
- I2C interface
- Example source code
- Pmod-compatible form factor