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Subject: Re: [TLS] Fallback SCSV summary
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Yngve N. Pettersen <yngve@spec-work.net>:

Related to TLS 1.3 and fallbacks: Essentially all of the SCSV supporting
> servers failed when the SCSV is used at the start and for the server's
> highest supported version;


For OpenSSL servers, this is a known bug (fixed in the next release) --
when going through the list of cipher-suites, the server-side code fails to
look anywhere after the SCSV.


> less than 0.1% did so for the SCSV at the end.
>

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<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote">Yngv=
e N. Pettersen <span dir=3D"ltr">&lt;<a href=3D"mailto:yngve@spec-work.net"=
 target=3D"_blank">yngve@spec-work.net</a>&gt;</span>:</div><div class=3D"g=
mail_quote"><br></div><div class=3D"gmail_quote"><blockquote class=3D"gmail=
_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:=
1ex">
Related to TLS 1.3 and fallbacks: Essentially all of the SCSV supporting se=
rvers failed when the SCSV is used at the start and for the server&#39;s hi=
ghest supported version;</blockquote><div><br></div><div>For OpenSSL server=
s, this is a known bug (fixed in the next release) -- when going through th=
e list of cipher-suites, the server-side code fails to look anywhere after =
the SCSV.</div><div>=C2=A0</div><blockquote class=3D"gmail_quote" style=3D"=
margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">less than 0.=
1% did so for the SCSV at the end.<br></blockquote><div><br></div><div><br>=
</div></div></div></div>

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