6.3.2 CheckMac Command
The CheckMac command calculates a MAC response that would have been
generated on a different CryptoAuthentication device1 and then compares
the result with the input value. The command returns a boolean result to indicate the
success or failure of the comparison.
If a value in TempKey is used as an input to the CheckMac,
then a Nonce and/or GenDig command must be run prior
to the CheckMac command.
1 Devices that generate a
compatible MAC response include, ATECC608A/B/C, ATECC508A, ATSHA204A and SHA104.
This includes Trust variants associated with the products.