SMB3 encryption performance

[Andrew Bartlett]

On Tue, 2015-02-17 at 16:01 +0100, Andreas Schneider wrote:
> On Sunday 15 February 2015 11:25:16 Volker Lendecke wrote:
> > On Sat, Feb 14, 2015 at 03:41:46PM -0500, Michael Ledford wrote:
> > > There are a few libraries that can provide CPU optimization for AES.
> > > Here are a few which might fit.
> > > 
> > > If you are looking for a C based library then libgcrypt
> > > <http://www.gnu.org/software/libgcrypt/> might be a good choice.
> > 
> > Thanks. I've already found libgcrypt, it seems to be part of
> > the gpg suite. The question I have is broader: libcrypt,
> > mozilla nss, probably some Kerberos base libs,
> > open/libressl/, etc all offer AES. What do we want to put
> > development effort on? Not so much a question to you,
> > Michael, but rather more to the broader audience here, in
> > particular for example Simo, Andrew and others involved with
> > crypto.
> 
> Forget libgcrypt, it is one of the most horrible APIs out there. It is simply 
> a pain for every programmer. We have libgcrypt in libssh and I want to get rid 
> of it.
> 
> If you prefer something which is LGPL, then use nettle [1]. GnuTLS switched 
> from libgcrypt to libnettle ...

According to GnuTLS, nettle doesn't have the hardware acceleration,
sadly, which is why that is rather oddly in the GnuTLS layer. 

Andrew Bartlett

-- 
Andrew Bartlett
http://samba.org/~abartlet/
Authentication Developer, Samba Team  http://samba.org
Samba Developer, Catalyst IT          http://catalyst.net.nz/services/samba