Hey Herbert,

On Mon, Mar 25, 2019 at 12:52 PM Herbert Xu [off-list ref] wrote:

Sorry but adding new implementations of chacha20/poly1305 without
removing the existing ones is not acceptable.  I really think
we ought to separate the zinc interface from these new crypto
implementations.  They have nothing to do with each other.

As we've been stuck on this point for so long, let's get the
ball rolling by first merging just the zinc interface itself
with the existing chacha20/poly1305 code.  Then we can replace
these implementations with your implementations without getting
bogged down by all these other discussions.

AFAICS once we resolve Thomas's concerns with regards to the simd
patch, then we can merge the zinc interface right away and go from
there.

I think we're slightly closer to being same page, but I haven't
followed up here yet because I was waiting for something else first.

Your previous patchset left out a few implementations and wasn't
totally complete with regards to the glue code. I'm going to whip
something up now that is Zinc, but where there's already an existing
assembly implementation in the tree (i.e. Martin's code), it uses that
instead of what I've been posting until now. Then, after that lands, I
can post stand-alone patches for replacing the various
implementations, and we can discuss those separately, alongside all
the various discussion of verification and benchmarks and so forth.

So, I'll have something to examine somewhat soon. Working on it now.

Jason