cmac

KMAC submission #524

Job	Run time
test (1.85.0)	55s
test (stable)	57s
build (stable, wasm32-unknown-unknown)	19s
build (1.85.0, wasm32-unknown-unknown)	19s
build (1.85.0, thumbv7em-none-eabi)	18s
build (stable, thumbv7em-none-eabi)	21s
minimal-versions / minimal-versions	32s
	3m 41s

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