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Date:      Wed, 11 Nov 2015 08:35:47 -0800
From:      Bryan Drewery <bdrewery@FreeBSD.org>
Cc:        "freebsd-current@freebsd.org" <freebsd-current@freebsd.org>, "freebsd-security@freebsd.org" <freebsd-security@freebsd.org>
Subject:   Re: OpenSSH HPN
Message-ID:  <56436E63.6040602@FreeBSD.org>
In-Reply-To: <546376BD-A2E7-4B73-904E-4F33DD82401E@digsys.bg>
References:  <86io5a9ome.fsf@desk.des.no> <20151110175216.GN65715@funkthat.com> <56428C84.8050600@FreeBSD.org> <CAOc73CAHQ0FRPES7GrM6ckkWfgZCS3Se7GFUrDO4pR_EMVSvZQ@mail.gmail.com> <20151111075930.GR65715@funkthat.com> <CAA=KUhs9g9gajxwLFBgn2nNhnn4oQSZ56FRVC%2BPde4ZZO=g7Ug@mail.gmail.com> <546376BD-A2E7-4B73-904E-4F33DD82401E@digsys.bg>

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On 11/11/2015 7:49 AM, Daniel Kalchev wrote:
> It is my understanding, that using the NONE cypher is not identical to =
using =E2=80=9Cthe old tools=E2=80=9D (rsh/rlogin/rcp).
>=20
> When ssh uses the NONE cypher, credentials and authorization are still =
encrypted and verified. Only the actual data payload is not encrypted.
>=20
> Perhaps similar level of security could be achieved by =E2=80=9Cthe old=
 tools=E2=80=9D if they were by default compiled with Kerberos. Although,=
 this still requires building additional infrastructure.
>=20
> I must have missed the explanation. But why having a NONE cypher compil=
ed in, but disabled in the configuration is a bad idea?

My reasoning for wanting SSH/SCP with NONE is precisely because of the
ssh key support. It simplifies a lot to be able to use the same key over
a VPN and not over the VPN to connect to the same system.


--=20
Regards,
Bryan Drewery


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