[git] GCRYPT - branch, master, updated. libgcrypt-1.6.0-70-ga39ee75

[James Cloos]

JK> chacha20: add AVX2/AMD64 assembly implementation
JK> Based on public domain implementation by Andrew Moon at
JK> https://github.com/floodyberry/chacha-opt

It would be cool to grab the sse2 versions, too.

Even the sse2 version is significantly faster than the compiled version.

There is still a large deployment of systems which lack ssse3 or avx
support.

Plus, most of the (affordable) KVM-based virtual offerrings run qemu-kvm
with options which block everything newer than sse2, even when the host
cpu supports them.  (One hopes that those vendors will upgrade to qemu 2
and start using -cpu host, but one cannot hold one's breath that long.)

-JimC
--
James Cloos <cloos at jhcloos.com>         OpenPGP: 0x997A9F17ED7DAEA6