I am an intern within the R&D branch of a company that designs tools that must operate with low noise at extremely high external temperatures (upwards of 175C). My boss asked that I look into finding a chip that would help prevent counterfeit tools from being connected to our power supply.
I'm looking for a chip that will check for a certain serial number or a "password" of sorts before allowing operation of the tool. In other words, the chip would expect to be given a correct response from the tool being attached to the power supply before allowing the tool to be operated.
I have found chips like the ATSHA204A (https://www.microchip.com/wwwproducts/en/ATsha204a), but I can't figure out how it should actually be connected to operate the way described above - I'm not even sure if this type of chip would be useful for what I have been tasked with.