Feature Request: Expand download validation to other formats

[gdevenyi]

The following hash functions are pacakged in coreuitls:
sha1sum sha224sum sha256sum sha384sum sha512sum shasum
in addition there is the older
md5sum

They all follow the same structure/format.

I imagine if more than one is available there would be a rank-ordered preference.

[JoeKar]

As mentioned in zyedidia/micro#3486 (comment) it would be nice to directly support the generic *.sha (chosen for the micro artifacts 😉) file extension for an arbitrary sha hash...may it be sha1, sha224, sha256, sha384 or sha512.
The length of the hash should be sufficient enough to identify the respective sha#sum for validation, in case the core libraries don't do it themself.