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Kupyna: implemented hashing function #1116

Job	Run time
cross (1.72.0, aarch64-unknown-linux-gnu, default)	46s
cross (1.72.0, powerpc-unknown-linux-gnu, default)	36s
cross (stable, aarch64-unknown-linux-gnu, default)	30s
cross (stable, powerpc-unknown-linux-gnu, default)	32s
minimal-versions / minimal-versions	39s
set-msrv / set-msrv	5s
macos (1.72.0)	29s
linux (x86_64-unknown-linux-gnu, 1.72.0)	42s
build (1.72.0, thumbv7em-none-eabi)	19s
macos (stable)	22s
linux (x86_64-unknown-linux-gnu, stable)	35s
build (1.72.0, wasm32-unknown-unknown)	19s
build (1.72.0, loongarch64-unknown-linux-gnu)	24s
build (stable, thumbv7em-none-eabi)	15s
windows (x86_64-pc-windows-gnu, 1.72.0)	53s
build (stable, wasm32-unknown-unknown)	25s
windows (x86_64-pc-windows-gnu, stable)	2m 5s
build (stable, loongarch64-unknown-linux-gnu)	19s
	10m 15s

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