XilSKey_EfusePl_ReadKey - XilSKey_EfusePl_ReadKey - 2026.1 English - UG643

Note: This function initializes the timer, XADC, and JTAG server subsystems if not already initialized. In Zynq - Reads AES key and User keys. In UltraScale - Reads 32-bit and 128-bit User keys and RSA hash. AES key cannot be read directly it can be verified with CRC check (requires updating the instance with 32-bit CRC value, API updates whether provided CRC value is matched with actuals or not). To calculate the CRC of expected AES key one can use any of the following APIs XilSKey_CrcCalculation() or XilSkey_CrcCalculation_AesKey()