[saghm]

> There ends up being a usability issue here. An MD5 hash is only 128 bits long. So 32 hex digits. A SHA-2 hash is going to be 256 bits. Or 64 hex digits. Manually comparing 64 hex digits is in practice much harder than twice as hard as comparing 32 hex digits. People get lost in the middle.

Comparing MD5 and SHA-2 for visual human diffing is like comparing a stick of dynamite to a landmine when trying to pop a pimple; any potential safety differences are trivial once you start using something in a fundamentally unsafe way.