some pubkey tests #95

Job	Run time
clippy	41s
rustfmt	5s
test (stable, ubuntu-latest, stable)	1m 55s
test (beta, ubuntu-latest, beta)	1m 58s
test (nightly, ubuntu-latest, nightly)	2m 0s
test (linux-amd64, ubuntu-latest, stable, x86_64-unknown-linux-musl)	2m 27s
test (linux-i686, ubuntu-latest, stable, i686-unknown-linux-musl)	2m 22s
test (linux-arm64, ubuntu-latest, stable, aarch64-unknown-linux-musl)	2m 33s
test (linux-arm, ubuntu-latest, stable, arm-unknown-linux-musleabihf)	2m 30s
test (linux-ppc64le, ubuntu-latest, stable, powerpc64le-unknown-linux-gnu)	2m 20s
test (linux-s390x, ubuntu-latest, stable, s390x-unknown-linux-gnu)	2m 33s
test (macos-amd64, macos-latest, stable, x86_64-apple-darwin)	7m 5s
test (macos-arm64, macos-14, stable, aarch64-apple-darwin)	1m 42s
test (windows-amd64, windows-latest, stable, x86_64-pc-windows-msvc)	5m 11s
test (stable-x86, ubuntu-latest, stable, i686-unknown-linux-gnu)	2m 22s
test (stable-aarch64, ubuntu-latest, stable, aarch64-unknown-linux-gnu)	2m 22s
test (stable-arm-gnueabihf, ubuntu-latest, stable, armv7-unknown-linux-gnueabihf)	2m 19s
test (stable-arm-musleabihf, ubuntu-latest, stable, armv7-unknown-linux-musleabihf)	2m 26s
test (stable-arm-musleabi, ubuntu-latest, stable, armv7-unknown-linux-musleabi)	2m 27s
test (win-gnu, windows-2022, nightly-x86_64-gnu)	4m 52s
	52m 10s

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