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Kupyna: implemented hashing function #1106

Job	Run time
cross (1.72.0, aarch64-unknown-linux-gnu, default)	42s
cross (1.72.0, powerpc-unknown-linux-gnu, default)	38s
cross (stable, aarch64-unknown-linux-gnu, default)	34s
cross (stable, powerpc-unknown-linux-gnu, default)	33s
set-msrv / set-msrv	3s
minimal-versions / minimal-versions	41s
linux (x86_64-unknown-linux-gnu, 1.72.0)	36s
build (1.72.0, thumbv7em-none-eabi)	18s
linux (x86_64-unknown-linux-gnu, stable)	32s
build (1.72.0, wasm32-unknown-unknown)	20s
build (1.72.0, loongarch64-unknown-linux-gnu)	24s
build (stable, thumbv7em-none-eabi)	2m 4s
build (stable, wasm32-unknown-unknown)	14s
macos (1.72.0)	27s
build (stable, loongarch64-unknown-linux-gnu)	13s
macos (stable)	25s
windows (x86_64-pc-windows-gnu, 1.72.0)	49s
windows (x86_64-pc-windows-gnu, stable)	2m 1s
	11m 34s

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