Merge pull request #26 from wiktor-k/wiktor/migrate-to-rustcrypto #182

Job	Run time
Check spelling	8s
Unit tests (ubuntu-latest)	33s
Unit tests (macos-latest)	48s
Check formatting (ubuntu-latest)	4s
Integration tests (ubuntu-latest)	38s
Unit tests (windows-latest)	2m 10s
Check formatting (macos-latest)	6s
Integration tests (macos-latest)	44s
Check formatting (windows-latest)	17s
Integration tests (windows-latest, true)	1m 46s
Clippy lints (ubuntu-latest)	20s
Clippy lints (macos-latest)	33s
Clippy lints (windows-latest)	1m 10s
	9m 17s

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