Re: Doing crypto in small stack buffers (bluetooth vs vmalloc-stack crash, etc)

quoted

Also not mentioned in the documentation is that some algorithms *do*
have different implementations depending on key size.  SHA-2 is the
classic example.

What do you mean by that? SHA has no keying at all.

In this case, the analagous property is hash size.  Sorry, I thought
that was so obvious I didn't need to say it.

Specifically, SHA2-256 (and -224) and SHA2-512 (and -384) are separate
algorithms with similar structures but deparate implementations.