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Kupyna: implemented hashing function #1104

Job	Run time
cross (1.72.0, aarch64-unknown-linux-gnu, default)	12s
cross (1.72.0, powerpc-unknown-linux-gnu, default)	12s
cross (stable, aarch64-unknown-linux-gnu, default)	10s
cross (stable, powerpc-unknown-linux-gnu, default)	11s
minimal-versions / minimal-versions	13s
set-msrv / set-msrv	2s
build (1.72.0, thumbv7em-none-eabi)	13s
linux (x86_64-unknown-linux-gnu, 1.72.0)	10s
linux (x86_64-unknown-linux-gnu, stable)	7s
build (1.72.0, wasm32-unknown-unknown)	20s
build (1.72.0, loongarch64-unknown-linux-gnu)	20s
macos (1.72.0)	20s
build (stable, thumbv7em-none-eabi)	7s
macos (stable)	14s
build (stable, wasm32-unknown-unknown)	11s
build (stable, loongarch64-unknown-linux-gnu)	8s
windows (x86_64-pc-windows-gnu, 1.72.0)	47s
windows (x86_64-pc-windows-gnu, stable)	37s
	4m 34s

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