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Date:      Tue, 12 Jul 2016 13:54:21 +0300
From:      Andrey Chernov <ache@freebsd.org>
To:        Daniel Kalchev <daniel@digsys.bg>, Matthew Seaman <matthew@FreeBSD.org>
Cc:        freebsd-current@freebsd.org
Subject:   Re: GOST in OPENSSL_BASE
Message-ID:  <6c8de30c-50dd-4d01-724a-24e1c134406e@freebsd.org>
In-Reply-To: <C2F596E2-B417-4DC2-A195-60CFAB6399F5@digsys.bg>
References:  <20160710133019.GD20831@zxy.spb.ru> <f35c1806-c06d-0d46-1c8a-58a56adef9a7@freebsd.org> <a4f0585d-cc99-e44a-7f59-0dd23e3c969f@FreeBSD.org> <20160711184122.GP46309@zxy.spb.ru> <98f27660-47ff-d212-8c50-9e6e1cd52e0b@freebsd.org> <c0bb5ae3-fee6-d40c-86bd-988c843d757b@freebsd.org> <CAN6yY1sOrL42ssbfGUKz8%2BaY0VvKPDHPx2S0ZRNpmmgdB0V8Tg@mail.gmail.com> <a8214f32-ce90-3b97-678a-faad7c6d0b69@freebsd.org> <C2F596E2-B417-4DC2-A195-60CFAB6399F5@digsys.bg>

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From: Andrey Chernov <ache@freebsd.org>
To: Daniel Kalchev <daniel@digsys.bg>, Matthew Seaman <matthew@FreeBSD.org>
Cc: freebsd-current@freebsd.org
Message-ID: <6c8de30c-50dd-4d01-724a-24e1c134406e@freebsd.org>
Subject: Re: GOST in OPENSSL_BASE
References: <20160710133019.GD20831@zxy.spb.ru>
 <f35c1806-c06d-0d46-1c8a-58a56adef9a7@freebsd.org>
 <a4f0585d-cc99-e44a-7f59-0dd23e3c969f@FreeBSD.org>
 <20160711184122.GP46309@zxy.spb.ru>
 <98f27660-47ff-d212-8c50-9e6e1cd52e0b@freebsd.org>
 <c0bb5ae3-fee6-d40c-86bd-988c843d757b@freebsd.org>
 <CAN6yY1sOrL42ssbfGUKz8+aY0VvKPDHPx2S0ZRNpmmgdB0V8Tg@mail.gmail.com>
 <a8214f32-ce90-3b97-678a-faad7c6d0b69@freebsd.org>
 <C2F596E2-B417-4DC2-A195-60CFAB6399F5@digsys.bg>
In-Reply-To: <C2F596E2-B417-4DC2-A195-60CFAB6399F5@digsys.bg>

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On 12.07.2016 12:59, Daniel Kalchev wrote:
> The standard HTTPS implementation is already sufficiently broken, with =
the door wide open by the concept of =E2=80=9Cmultiple CAs=E2=80=9D. The =
protocol design is flawed, as any CA can issue certificate for any site. =
Applications are required to trust that certificates, as long as they tru=
st the CA that issued them.
>=20
> It is trivial to play MTIM with this protocol and in fact, there are co=
mmercially available =E2=80=9Csolutions=E2=80=9D for =E2=80=9Csecuring on=
e=E2=80=99s corporate network=E2=80=9D that doe exactly that. Some believ=
e this is with the knowledge and approval of the corporation, but who is =
to say what the black box actually does and whose interests it serves?
>=20
> There is of course an update to the protocol, DANE, that just shuts thi=
s door off. But=E2=80=A6 it faces heavy resistance, as it=E2=80=99s accep=
tance would mean the end of the lucrative CA business and the ability to =
intercept =E2=80=9Csecure=E2=80=9D HTTPS communication. Those relying on =
the HPPTS flaws will never let it become wide spread.
>=20
> In summary =E2=80=94 anyone can sniff HTTPS traffic. No need for any ci=
pher backdoors here. Nor any need for GOST to be involved.

You forget to mention that CA must already be in the trusted root list
to allow it happens.




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