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AES-256 CMAC (CMAC per SP 800-38B, AES-256 per FIPS 197) used as a NIST-vetted keyed conditioning component (SP 800-90B, section 3.1.5.1.1) for the QRNG entropy source. It conditions the raw noise-source samples into a 128-bit conditioned output per block that feeds the DRBG seed. Tested under ACVP as CMAC-AES. The algorithm is implemented for the Xilinx Artix UltraScale+ XCAU25P-2FFVB676I FPGA.