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From: Yogesh Karandikar <ykarandikar@apple.com>
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Cc: Leif Johansson <leifj@sunet.se>, tigress@ietf.org
To: Watson Ladd <watsonbladd@gmail.com>
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Subject: Re: [Tigress] post-118 direction
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Replies  inline.


Thanks,
Yogesh

> On Nov 27, 2023, at 10:35=E2=80=AFAM, Watson Ladd =
<watsonbladd@gmail.com> wrote:
>=20
> On Thu, Nov 23, 2023 at 9:01=E2=80=AFAM Leif Johansson <leifj@sunet.se =
<mailto:leifj@sunet.se>> wrote:
>>=20
>>=20
>> Folks,
>>=20
>> The chairs have conferred and we recognize the following consensus:
>>=20
>> 1. assume that the invite channel is secure and adjust proposals
>> accordingly - at some point we need to identify what (if any) =
consensus
>> exists within the WG to pursue a solution
>=20

I thought the orthogonal option (#3) in the poll meant:=20

3.1 assume the invite channel can be non-secure and proceed with a =
solution.=20

3.2 Orthogonal work to add security on top of a non-secure channel =
(second-factor or other methods). =20


If we assume invite_channel to be secure (option #1 in the poll), I=E2=80=99=
m not sure why orthogonal work would be required.=20


> What's the meaning of secure here? I think based on what EKR and
> others have said on the list this makes sense to pursue first as most
> channels being proposed  are secure in the relevant sense

In this context, secure =3D=3D =E2=80=9Cinvitation is delivered to only =
the recipient selected by share initiator=E2=80=9D.=20

Hence non_secure would mean that someone else besides the selected =
recipient has access to the invitation.

>=20
>>=20
>> 2. address invitation channels that are not fully secure in a way =
that
>> is orthogonal to the solutions the WG decides to pursue for the core
>> protocol.
>=20
> I suspect that orthogonality is tricky to actually achieve here.
>>=20
>> Please respond with your support and/or disagreement. If you disagree
>> please provide whatever insights you are able to.
>>=20
>> Also please indicate your willingness to eventually implement and/or
>> support the results of (1) and (2).
>>=20
>>        Best R
>>        Leif & Prachi
>>=20
>> --
>> Tigress mailing list
>> Tigress@ietf.org
>> https://www.ietf.org/mailman/listinfo/tigress
>=20
>=20
>=20
> --=20
> Astra mortemque praestare gradatim
>=20
> --=20
> Tigress mailing list
> Tigress@ietf.org <mailto:Tigress@ietf.org>
> https://www.ietf.org/mailman/listinfo/tigress


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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"overflow-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;">Replies =
&nbsp;inline.<div><br></div><div><br></div><div>Thanks,</div><div>Yogesh<b=
r id=3D"lineBreakAtBeginningOfMessage"><div><br><blockquote =
type=3D"cite"><div>On Nov 27, 2023, at 10:35=E2=80=AFAM, Watson Ladd =
&lt;watsonbladd@gmail.com&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div><meta charset=3D"UTF-8"><span =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important;">On Thu, Nov 23, 2023 at 9:01=E2=80=AFAM =
Leif Johansson &lt;</span><a href=3D"mailto:leifj@sunet.se" =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: 400; letter-spacing: normal; =
orphans: auto; text-align: start; text-indent: 0px; text-transform: =
none; white-space: normal; widows: auto; word-spacing: 0px; =
-webkit-text-stroke-width: 0px;">leifj@sunet.se</a><span =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important;">&gt; wrote:</span><br style=3D"caret-color: =
rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: =
normal; font-variant-caps: normal; font-weight: 400; letter-spacing: =
normal; text-align: start; text-indent: 0px; text-transform: none; =
white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none;"><blockquote type=3D"cite" style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; orphans: auto; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none;"><br><br>Folks,<br><br>The chairs have conferred =
and we recognize the following consensus:<br><br>1. assume that the =
invite channel is secure and adjust proposals<br>accordingly - at some =
point we need to identify what (if any) consensus<br>exists within the =
WG to pursue a solution<br></blockquote><br style=3D"caret-color: rgb(0, =
0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: 400; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none;"></div></blockquote><div><br></div>I thought the =
orthogonal option (#3) in the poll =
meant:&nbsp;</div><div><br></div><div>3.1 assume the invite channel can =
be <b>non-secure</b> and proceed with a =
solution.&nbsp;</div><div><br></div><div>3.2 Orthogonal work to add =
security on top of a non-secure channel (second-factor or other =
methods). &nbsp;</div><div><br></div><div><br></div><div>If we assume =
invite_channel to be secure (option #1 in the poll), I=E2=80=99m not =
sure why orthogonal work would be =
required.&nbsp;</div><div><br></div><div><br><blockquote =
type=3D"cite"><div><span style=3D"caret-color: rgb(0, 0, 0); =
font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: 400; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none; float: none; display: inline !important;">What's =
the meaning of secure here? I think based on what EKR and</span><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;"><span =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important;">others have said on the list this makes =
sense to pursue first as most</span><br style=3D"caret-color: rgb(0, 0, =
0); font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: 400; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none;"><span style=3D"caret-color: rgb(0, 0, 0); =
font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: 400; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none; float: none; display: inline =
!important;">channels being proposed &nbsp;are secure in the relevant =
sense</span><br style=3D"caret-color: rgb(0, 0, 0); font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;"></div></blockquote><div><br></div>In this context, secure =3D=3D =
=E2=80=9Cinvitation is delivered to only the recipient selected by share =
initiator=E2=80=9D.&nbsp;</div><div><br></div><div>Hence non_secure =
would mean that someone else besides the selected recipient has access =
to the invitation.</div><div><br></div><div><blockquote =
type=3D"cite"><div><br style=3D"caret-color: rgb(0, 0, 0); font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;"><blockquote type=3D"cite" style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: 400; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none;"><br>2. address invitation channels that are not =
fully secure in a way that<br>is orthogonal to the solutions the WG =
decides to pursue for the core<br>protocol.<br></blockquote><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;"><span =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important;">I suspect that orthogonality is tricky to =
actually achieve here.</span><br style=3D"caret-color: rgb(0, 0, 0); =
font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: 400; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none;"><blockquote type=3D"cite" style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; orphans: auto; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none;"><br>Please respond with your support and/or =
disagreement. If you disagree<br>please provide whatever insights you =
are able to.<br><br>Also please indicate your willingness to eventually =
implement and/or<br>support the results of (1) and =
(2).<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Best =
R<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Leif &amp; =
Prachi<br><br>--<br>Tigress mailing =
list<br>Tigress@ietf.org<br>https://www.ietf.org/mailman/listinfo/tigress<=
br></blockquote><br style=3D"caret-color: rgb(0, 0, 0); font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;"><br style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;"><br style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;"><span style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none; float: none; display: inline !important;">--<span =
class=3D"Apple-converted-space">&nbsp;</span></span><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;"><span =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important;">Astra mortemque praestare =
gradatim</span><br style=3D"caret-color: rgb(0, 0, 0); font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
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none; float: none; display: inline !important;">--<span =
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