On Thu, Jul 25, 2024 at 11:22:25PM +0200, Илья Шипицин wrote:
> Subject: Re: [ANNOUNCE] haproxy-3.1-dev2
> чт, 25 июл. 2024 г. в 22:00, Илья Шипицин <chipits...@gmail.com>:
> 
> >
> >
> > чт, 25 июл. 2024 г. в 14:27, William Lallemand <wlallem...@irq6.net>:
> >
> >> On Wed, Jul 03, 2024 at 11:51:21PM +0200, William Lallemand wrote:
> >> > > aws-lc implements chacha20_poly1305 in a different way than QuicTLS.
> >> > > and if that gap is eliminated, it will be a good point to declare
> >> aws-lc as
> >> > > a recommended QUIC lib.
> >> > >
> >> > > if we compare aws-lc against openssl-1.1 (not quictls), it is indeed
> >> > > matches (maybe except some niche features like async)
> >> > >
> >> >
> >> > BoringSSL, LibreSSL, and AWS-LC uses the EVP_AEAD API, basically we
> >> would need
> >> > to use EVP_aead_chacha20_poly1305() instead of EVP_chacha20_poly1305(),
> >> and
> >> > EVP_aead_chacha20_poly1305() instead of EVP_chacha20() and uses the
> >> EVP_AEAD
> >> > functions. IMHO this is not a huge change and this is doable, we just
> >> need to
> >> > invest some time on it.
> >> >
> >> > Regards,
> >>
> >> FYI I just push some patches that implements the CHACHA20_POLY1305 for
> >> QUIC with AWS-LC.
> >>
> >
> > nice, it passes chacha20 test!
> >
> >
> >> We now handle with AWS-LC for QUIC:
> >> - TLS_AES_128_GCM_SHA256
> >> - TLS_AES_256_GCM_SHA384
> >> - TLS_CHACHA20_POLY1305_SHA256
> >>
> >> The TLS_AES_128_CCM_SHA256 cipher is not implemented by AWS-LC, and is
> >> disabled by default in a lot of stack anyway.
> >>
> >
> next point: 0-RTT
> 
> according to haproxy/include/haproxy/openssl-compat.h at master ·
> haproxy/haproxy (github.com)
> <https://github.com/haproxy/haproxy/blob/master/include/haproxy/openssl-compat.h#L117-L119>
> 
> 0-RTT support depends on SSL_OP_NO_ANTI_REPLAY (which is not defined for
> AWS-LC)
> 
> thus it is not possible to satisfy that condition
> 
> haproxy/src/quic_ssl.c at master · haproxy/haproxy (github.com)
> <https://github.com/haproxy/haproxy/blob/master/src/quic_ssl.c#L765-L772>
> 
> AWS-LC (inherited from BoringSSL) supports 0-RTT in its own way not
> compatible with QuicTLS ((

Yes, I already planned to do it.

-- 
William Lallemand


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