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From: Andrew S2 <andrew.s2@ncsc.gov.uk>
To: "saag@ietf.org" <saag@ietf.org>, "model-t@iab.org" <model-t@iab.org>
Thread-Topic: NCSC Protocol Design Principles
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Subject: [saag] NCSC Protocol Design Principles
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Hi all,



NCSC published its Protocol Design Principles white paper this week: https:=
//www.ncsc.gov.uk/whitepaper/protocol-design-principles<https://eur03.safel=
inks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fwww.ncsc.gov.uk%2Fwhitepap=
er%2Fprotocol-design-principles&data=3D04%7C01%7Candrew.s2%40ncsc.gov.uk%7C=
91b7c7673227437aa73408d896c3b33e%7C14aa5744ece1474ea2d734f46dda64a1%7C0%7C0=
%7C637425114548153843%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV=
2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=3Dgi5H2hKaBEcQtjLqFQ4ouq=
wS4ApPvL4g%2Bm3KBx2NE0Y%3D&reserved=3D0>. These principles have been writte=
n with the primary aim of helping protocol designers consider a range of is=
sues relevant to security, but also to aid deployers and implementers in as=
sessing protocols. The principles put user needs at the heart of the design=
 process.



The paper outlines some of the major changes that have taken place with the=
 internet over recent years, and outlines motivating goals for user securit=
y. In the context of these changes, and security goals, the paper defines t=
hree main principles:

1.                      Prioritise the use case

2.                      Keep it simple

3.                      Think about the bigger picture

Each of these includes detailed sub-principles that aim to help designers m=
eet the motivating security goals in today's technology landscape.



Our goal of seeing protocols designed securely for the internet naturally h=
as parallels with the IETF's work and, in particular, this white paper coul=
d be of interest to the IAB's model-t programme. The key first step in desi=
gning a protocol securely is, as we cover in the paper, to define the threa=
t model it operates in.



We believe this paper will be of particular interest to those involved in m=
odel-t as well as the security area more widely.



We hope you find these principles useful, and we welcome any feedback, eith=
er by email to pdpfeedback@ncsc.gov.uk<mailto:pdpfeedback@ncsc.gov.uk> or v=
ia our GitHub page at https://github.com/ukncsc/protocol-design-principles<=
https://eur03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fgithub.=
com%2Fukncsc%2Fprotocol-design-principles&data=3D04%7C01%7Candrew.s2%40ncsc=
.gov.uk%7C91b7c7673227437aa73408d896c3b33e%7C14aa5744ece1474ea2d734f46dda64=
a1%7C0%7C0%7C637425114548163806%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDA=
iLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=3DsWZZ0lSB0nYj=
nDQnwjLCxjQSqB5uP4daPNOvPNYFgc4%3D&reserved=3D0>.



Many thanks,

Andrew









This information is exempt under the Freedom of Information Act 2000 (FOIA)=
 and may be exempt under other UK information legislation. Refer any FOIA q=
ueries to ncscinfoleg@ncsc.gov.uk. All material is UK Crown Copyright (c)

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</head>
<body lang=3D"EN-GB" link=3D"#0563C1" vlink=3D"#954F72" style=3D"word-wrap:=
break-word">
<div class=3D"WordSection1">
<p class=3D"xxmsonormal">Hi all,<o:p></o:p></p>
<p class=3D"xxmsonormal">&nbsp;<o:p></o:p></p>
<p class=3D"xxmsonormal">NCSC published its Protocol Design Principles whit=
e paper this week:
<a href=3D"https://eur03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2=
F%2Fwww.ncsc.gov.uk%2Fwhitepaper%2Fprotocol-design-principles&amp;data=3D04=
%7C01%7Candrew.s2%40ncsc.gov.uk%7C91b7c7673227437aa73408d896c3b33e%7C14aa57=
44ece1474ea2d734f46dda64a1%7C0%7C0%7C637425114548153843%7CUnknown%7CTWFpbGZ=
sb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1=
000&amp;sdata=3Dgi5H2hKaBEcQtjLqFQ4ouqwS4ApPvL4g%2Bm3KBx2NE0Y%3D&amp;reserv=
ed=3D0">
https://www.ncsc.gov.uk/whitepaper/protocol-design-principles</a>. These pr=
inciples have been written with the primary aim of helping protocol designe=
rs consider a range of issues relevant to security, but also to aid deploye=
rs and implementers in assessing
 protocols. The principles put user needs at the heart of the design proces=
s.<o:p></o:p></p>
<p class=3D"xxmsonormal">&nbsp;<o:p></o:p></p>
<p class=3D"xxmsonormal">The paper outlines some of the major changes that =
have taken place with the internet over recent years, and outlines motivati=
ng goals for user security. In the context of these changes, and security g=
oals, the paper defines three main
 principles:<o:p></o:p></p>
<p class=3D"xxmsonormal" style=3D"margin-left:59.5pt;text-indent:-41.5pt;ms=
o-list:l2 level1 lfo3">
<![if !supportLists]><span style=3D"mso-list:Ignore">1.<span style=3D"font:=
7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;
</span></span><![endif]>Prioritise the use case<o:p></o:p></p>
<p class=3D"xxmsolistparagraph" style=3D"margin-left:59.5pt;text-indent:-41=
.5pt;mso-list:l2 level1 lfo3">
<![if !supportLists]><span style=3D"mso-list:Ignore">2.<span style=3D"font:=
7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;
</span></span><![endif]>Keep it simple<o:p></o:p></p>
<p class=3D"xxmsolistparagraph" style=3D"margin-left:59.5pt;text-indent:-41=
.5pt;mso-list:l2 level1 lfo3">
<![if !supportLists]><span style=3D"mso-list:Ignore">3.<span style=3D"font:=
7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;
</span></span><![endif]>Think about the bigger picture <o:p></o:p></p>
<p class=3D"xxmsonormal">Each of these includes detailed sub-principles tha=
t aim to help designers meet the motivating security goals in today&#8217;s=
 technology landscape.<o:p></o:p></p>
<p class=3D"xxmsonormal">&nbsp;<o:p></o:p></p>
<p class=3D"xxmsonormal">Our goal of seeing protocols designed securely for=
 the internet naturally has parallels with the IETF&#8217;s work and, in pa=
rticular, this white paper could be of interest to the IAB&#8217;s model-t =
programme. The key first step in designing a protocol
 securely is, as we cover in the paper, to define the threat model it opera=
tes in.
<o:p></o:p></p>
<p class=3D"xxmsonormal">&nbsp;<o:p></o:p></p>
<p class=3D"xxmsonormal">We believe this paper will be of particular intere=
st to those involved in model-t as well as the security area more widely.<o=
:p></o:p></p>
<p class=3D"xxmsonormal">&nbsp;<o:p></o:p></p>
<p class=3D"xxmsonormal">We hope you find these principles useful, and we w=
elcome any feedback, either by email to
<a href=3D"mailto:pdpfeedback@ncsc.gov.uk">pdpfeedback@ncsc.gov.uk</a> or v=
ia our GitHub page at
<a href=3D"https://eur03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2=
F%2Fgithub.com%2Fukncsc%2Fprotocol-design-principles&amp;data=3D04%7C01%7Ca=
ndrew.s2%40ncsc.gov.uk%7C91b7c7673227437aa73408d896c3b33e%7C14aa5744ece1474=
ea2d734f46dda64a1%7C0%7C0%7C637425114548163806%7CUnknown%7CTWFpbGZsb3d8eyJW=
IjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;s=
data=3DsWZZ0lSB0nYjnDQnwjLCxjQSqB5uP4daPNOvPNYFgc4%3D&amp;reserved=3D0">
https://github.com/ukncsc/protocol-design-principles</a>.<o:p></o:p></p>
<p class=3D"xxmsonormal">&nbsp;<o:p></o:p></p>
<p class=3D"xxmsonormal">Many thanks,<o:p></o:p></p>
<p class=3D"xxmsonormal">Andrew<o:p></o:p></p>
<p class=3D"xxmsonormal"><o:p>&nbsp;</o:p></p>
<p class=3D"xxmsonormal"><o:p>&nbsp;</o:p></p>
<p class=3D"xxmsonormal"><o:p>&nbsp;</o:p></p>
<p class=3D"xxmsonormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
This information is exempt under the Freedom of Information Act 2000 (FOIA)=
 and may be exempt under other UK information legislation. Refer any FOIA q=
ueries to ncscinfoleg@ncsc.gov.uk. All material is UK Crown Copyright &copy=
;
</body>
</html>

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From: Andrew S2 <andrew.s2@ncsc.gov.uk>
To: "saag@ietf.org" <saag@ietf.org>, "model-t@iab.org" <model-t@iab.org>
Thread-Topic: NCSC Protocol Design Principles
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Subject: Re: [saag] NCSC Protocol Design Principles
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Apologies for the broken links, the links below should work correctly.

Andrew

From: Andrew S2
Sent: 02 December 2020 13:42
To: saag@ietf.org; model-t@iab.org
Subject: NCSC Protocol Design Principles


Hi all,



NCSC published its Protocol Design Principles white paper this week: https:=
//www.ncsc.gov.uk/whitepaper/protocol-design-principles. These principles h=
ave been written with the primary aim of helping protocol designers conside=
r a range of issues relevant to security, but also to aid deployers and imp=
lementers in assessing protocols. The principles put user needs at the hear=
t of the design process.



The paper outlines some of the major changes that have taken place with the=
 internet over recent years, and outlines motivating goals for user securit=
y. In the context of these changes, and security goals, the paper defines t=
hree main principles:

1.                      Prioritise the use case

2.                      Keep it simple

3.                      Think about the bigger picture

Each of these includes detailed sub-principles that aim to help designers m=
eet the motivating security goals in today's technology landscape.



Our goal of seeing protocols designed securely for the internet naturally h=
as parallels with the IETF's work and, in particular, this white paper coul=
d be of interest to the IAB's model-t programme. The key first step in desi=
gning a protocol securely is, as we cover in the paper, to define the threa=
t model it operates in.



We believe this paper will be of particular interest to those involved in m=
odel-t as well as the security area more widely.



We hope you find these principles useful, and we welcome any feedback, eith=
er by email to pdpfeedback@ncsc.gov.uk<mailto:pdpfeedback@ncsc.gov.uk> or v=
ia our GitHub page at https://github.com/ukncsc/protocol-design-principles.



Many thanks,

Andrew











This information is exempt under the Freedom of Information Act 2000 (FOIA)=
 and may be exempt under other UK information legislation. Refer any FOIA q=
ueries to ncscinfoleg@ncsc.gov.uk. All material is UK Crown Copyright (c)

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<div class=3D"WordSection1">
<p class=3D"MsoNormal">Apologies for the broken links, the links below shou=
ld work correctly.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Andrew<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"mso-fareast-languag=
e:EN-GB">From:</span></b><span lang=3D"EN-US" style=3D"mso-fareast-language=
:EN-GB"> Andrew S2
<br>
<b>Sent:</b> 02 December 2020 13:42<br>
<b>To:</b> saag@ietf.org; model-t@iab.org<br>
<b>Subject:</b> NCSC Protocol Design Principles<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"xxmsonormal">Hi all,<o:p></o:p></p>
<p class=3D"xxmsonormal">&nbsp;<o:p></o:p></p>
<p class=3D"xxmsonormal">NCSC published its Protocol Design Principles whit=
e paper this week:
<a href=3D"https://www.ncsc.gov.uk/whitepaper/protocol-design-principles">h=
ttps://www.ncsc.gov.uk/whitepaper/protocol-design-principles</a>. These pri=
nciples have been written with the primary aim of helping protocol designer=
s consider a range of issues relevant
 to security, but also to aid deployers and implementers in assessing proto=
cols. The principles put user needs at the heart of the design process.<o:p=
></o:p></p>
<p class=3D"xxmsonormal">&nbsp;<o:p></o:p></p>
<p class=3D"xxmsonormal">The paper outlines some of the major changes that =
have taken place with the internet over recent years, and outlines motivati=
ng goals for user security. In the context of these changes, and security g=
oals, the paper defines three main
 principles:<o:p></o:p></p>
<p class=3D"xxmsonormal" style=3D"margin-left:59.5pt;text-indent:-41.5pt;ms=
o-list:l0 level1 lfo2">
<![if !supportLists]><span style=3D"mso-list:Ignore">1.<span style=3D"font:=
7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;
</span></span><![endif]>Prioritise the use case<o:p></o:p></p>
<p class=3D"xxmsolistparagraph" style=3D"margin-left:59.5pt;text-indent:-41=
.5pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span style=3D"mso-list:Ignore">2.<span style=3D"font:=
7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;
</span></span><![endif]>Keep it simple<o:p></o:p></p>
<p class=3D"xxmsolistparagraph" style=3D"margin-left:59.5pt;text-indent:-41=
.5pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span style=3D"mso-list:Ignore">3.<span style=3D"font:=
7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;
</span></span><![endif]>Think about the bigger picture <o:p></o:p></p>
<p class=3D"xxmsonormal">Each of these includes detailed sub-principles tha=
t aim to help designers meet the motivating security goals in today&#8217;s=
 technology landscape.<o:p></o:p></p>
<p class=3D"xxmsonormal">&nbsp;<o:p></o:p></p>
<p class=3D"xxmsonormal">Our goal of seeing protocols designed securely for=
 the internet naturally has parallels with the IETF&#8217;s work and, in pa=
rticular, this white paper could be of interest to the IAB&#8217;s model-t =
programme. The key first step in designing a protocol
 securely is, as we cover in the paper, to define the threat model it opera=
tes in.
<o:p></o:p></p>
<p class=3D"xxmsonormal">&nbsp;<o:p></o:p></p>
<p class=3D"xxmsonormal">We believe this paper will be of particular intere=
st to those involved in model-t as well as the security area more widely.<o=
:p></o:p></p>
<p class=3D"xxmsonormal">&nbsp;<o:p></o:p></p>
<p class=3D"xxmsonormal">We hope you find these principles useful, and we w=
elcome any feedback, either by email to
<a href=3D"mailto:pdpfeedback@ncsc.gov.uk">pdpfeedback@ncsc.gov.uk</a> or v=
ia our GitHub page at
<a href=3D"https://github.com/ukncsc/protocol-design-principles">https://gi=
thub.com/ukncsc/protocol-design-principles</a>.<o:p></o:p></p>
<p class=3D"xxmsonormal">&nbsp;<o:p></o:p></p>
<p class=3D"xxmsonormal">Many thanks,<o:p></o:p></p>
<p class=3D"xxmsonormal">Andrew<o:p></o:p></p>
<p class=3D"xxmsonormal"><o:p>&nbsp;</o:p></p>
<p class=3D"xxmsonormal"><o:p>&nbsp;</o:p></p>
<p class=3D"xxmsonormal"><o:p>&nbsp;</o:p></p>
<p class=3D"xxmsonormal"><o:p>&nbsp;</o:p></p>
<p class=3D"xxmsonormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
This information is exempt under the Freedom of Information Act 2000 (FOIA)=
 and may be exempt under other UK information legislation. Refer any FOIA q=
ueries to ncscinfoleg@ncsc.gov.uk. All material is UK Crown Copyright &copy=
;
</body>
</html>

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From: Ira McDonald <blueroofmusic@gmail.com>
Date: Mon, 28 Dec 2020 15:21:18 -0500
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Subject: [saag] Will there be an RFC4949bis?
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Hi,

The Internet Glossary is a very useful resource to many authors and many
SDOs.  But it was published in August 2007, several eras of technology in
the past.  Since the definitions are often out-of-date in their references
to
source SDO definitions, they are sometimes inaccurate for current usage.

Just wondering.

Cheers,
- Ira

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<div dir=3D"ltr"><div>Hi,</div><div><br></div><div>The Internet Glossary is=
 a very useful resource to many authors and many</div><div>SDOs.=C2=A0 But =
it was published in August 2007, several eras of technology in <br></div><d=
iv>the past.=C2=A0 Since the definitions are often out-of-date in their ref=
erences to <br></div><div>source SDO definitions, they are sometimes inaccu=
rate for current usage.<br></div><div><br></div><div>Just wondering.</div><=
div><br></div><div>Cheers,</div><div>- Ira</div><div><br></div></div>

--0000000000002d4f2f05b78c0570--


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Subject: Re: [saag] Will there be an RFC4949bis?
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--=-=-=
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Ira McDonald <blueroofmusic@gmail.com> wrote:
    > The Internet Glossary is a very useful resource to many authors and m=
any
    > SDOs.  But it was published in August 2007, several eras of technolog=
y in
    > the past.  Since the definitions are often out-of-date in their refer=
ences
    > to
    > source SDO definitions, they are sometimes inaccurate for current usa=
ge.

hi, I'm told that 4949 took a lot of compromise to arrive at.
(I personally can't recall the debate at all, but I had a new baby around
that time)

I think that doing 4949bis is probably the wrong approach.
Instead, I would suggest a round of Updates (Amends) 4949, and then later o=
n,
collect it back.

We had a discussion a few weeks ago about on-path attackers vs packet dropp=
ing.
I wrote draft-richardson-saag-onpath-attacker-00 to capture that discussion,
and bring it forward, and yes, Amend rfc4949. (co-authors sought)

=2D-
Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 I=C3=B8T consulti=
ng )
           Sandelman Software Works Inc, Ottawa and Worldwide

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From: Metapolymath Majordomo <majordomo@metapolymath.com>
Date: Tue, 29 Dec 2020 14:00:47 -0600
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To: Michael Richardson <mcr+ietf@sandelman.ca>
Cc: Ira McDonald <blueroofmusic@gmail.com>, saag@ietf.org
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Subject: Re: [saag] Will there be an RFC4949bis?
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Concur on amendments option.

On Tue, Dec 29, 2020, 1:20 PM Michael Richardson <mcr+ietf@sandelman.ca>
wrote:

>
> Ira McDonald <blueroofmusic@gmail.com> wrote:
>     > The Internet Glossary is a very useful resource to many authors and
> many
>     > SDOs.  But it was published in August 2007, several eras of
> technology in
>     > the past.  Since the definitions are often out-of-date in their
> references
>     > to
>     > source SDO definitions, they are sometimes inaccurate for current
> usage.
>
> hi, I'm told that 4949 took a lot of compromise to arrive at.
> (I personally can't recall the debate at all, but I had a new baby around
> that time)
>
> I think that doing 4949bis is probably the wrong approach.
> Instead, I would suggest a round of Updates (Amends) 4949, and then later
> on,
> collect it back.
>
> We had a discussion a few weeks ago about on-path attackers vs packet
> dropping.
> I wrote draft-richardson-saag-onpath-attacker-00 to capture that
> discussion,
> and bring it forward, and yes, Amend rfc4949. (co-authors sought)
>
> --
> Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 I=C3=B8T consul=
ting )
>            Sandelman Software Works Inc, Ottawa and Worldwide
> _______________________________________________
> saag mailing list
> saag@ietf.org
> https://www.ietf.org/mailman/listinfo/saag
>

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<div dir=3D"auto">Concur on amendments option.</div><br><div class=3D"gmail=
_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, Dec 29, 2020, 1:20 PM=
 Michael Richardson &lt;<a href=3D"mailto:mcr%2Bietf@sandelman.ca">mcr+ietf=
@sandelman.ca</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" sty=
le=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
Ira McDonald &lt;<a href=3D"mailto:blueroofmusic@gmail.com" target=3D"_blan=
k" rel=3D"noreferrer">blueroofmusic@gmail.com</a>&gt; wrote:<br>
=C2=A0 =C2=A0 &gt; The Internet Glossary is a very useful resource to many =
authors and many<br>
=C2=A0 =C2=A0 &gt; SDOs.=C2=A0 But it was published in August 2007, several=
 eras of technology in<br>
=C2=A0 =C2=A0 &gt; the past.=C2=A0 Since the definitions are often out-of-d=
ate in their references<br>
=C2=A0 =C2=A0 &gt; to<br>
=C2=A0 =C2=A0 &gt; source SDO definitions, they are sometimes inaccurate fo=
r current usage.<br>
<br>
hi, I&#39;m told that 4949 took a lot of compromise to arrive at.<br>
(I personally can&#39;t recall the debate at all, but I had a new baby arou=
nd<br>
that time)<br>
<br>
I think that doing 4949bis is probably the wrong approach.<br>
Instead, I would suggest a round of Updates (Amends) 4949, and then later o=
n,<br>
collect it back.<br>
<br>
We had a discussion a few weeks ago about on-path attackers vs packet dropp=
ing.<br>
I wrote draft-richardson-saag-onpath-attacker-00 to capture that discussion=
,<br>
and bring it forward, and yes, Amend rfc4949. (co-authors sought)<br>
<br>
--<br>
Michael Richardson &lt;<a href=3D"mailto:mcr%2BIETF@sandelman.ca" target=3D=
"_blank" rel=3D"noreferrer">mcr+IETF@sandelman.ca</a>&gt;=C2=A0 =C2=A0. o O=
 ( IPv6 I=C3=B8T consulting )<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Sandelman Software Works Inc, Otta=
wa and Worldwide<br>
_______________________________________________<br>
saag mailing list<br>
<a href=3D"mailto:saag@ietf.org" target=3D"_blank" rel=3D"noreferrer">saag@=
ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/saag" rel=3D"noreferrer no=
referrer" target=3D"_blank">https://www.ietf.org/mailman/listinfo/saag</a><=
br>
</blockquote></div>

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From: Metapolymath Majordomo <majordomo@metapolymath.com>
Date: Tue, 29 Dec 2020 17:29:23 -0600
Message-ID: <CABtv6o-i3xE6+zrLoiaxx4HobDiSKc9SMosEn1nL1iKv81RTTQ@mail.gmail.com>
To: Michael Richardson <mcr+ietf@sandelman.ca>
Cc: Ira McDonald <blueroofmusic@gmail.com>, saag@ietf.org
Content-Type: multipart/alternative; boundary="00000000000059595405b7a2c38a"
Archived-At: <https://mailarchive.ietf.org/arch/msg/saag/Hcb35pnjZ3H7Km2QXL6fzJs5v-s>
Subject: Re: [saag] Will there be an RFC4949bis?
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I apologize I didn't realize my signature was off.

I agree with Michael's conclusions.

With Regard,

Kronah Wood
Metapolymath, LLC
PO Box 19236
Lenexa, KS 66219-9236
+1.2139158297
www.metapolymath.com

Sent from Mobile





On Tue, Dec 29, 2020, 2:00 PM Metapolymath Majordomo <
majordomo@metapolymath.com> wrote:

> Concur on amendments option.
>
> On Tue, Dec 29, 2020, 1:20 PM Michael Richardson <mcr+ietf@sandelman.ca>
> wrote:
>
>>
>> Ira McDonald <blueroofmusic@gmail.com> wrote:
>>     > The Internet Glossary is a very useful resource to many authors an=
d
>> many
>>     > SDOs.  But it was published in August 2007, several eras of
>> technology in
>>     > the past.  Since the definitions are often out-of-date in their
>> references
>>     > to
>>     > source SDO definitions, they are sometimes inaccurate for current
>> usage.
>>
>> hi, I'm told that 4949 took a lot of compromise to arrive at.
>> (I personally can't recall the debate at all, but I had a new baby aroun=
d
>> that time)
>>
>> I think that doing 4949bis is probably the wrong approach.
>> Instead, I would suggest a round of Updates (Amends) 4949, and then late=
r
>> on,
>> collect it back.
>>
>> We had a discussion a few weeks ago about on-path attackers vs packet
>> dropping.
>> I wrote draft-richardson-saag-onpath-attacker-00 to capture that
>> discussion,
>> and bring it forward, and yes, Amend rfc4949. (co-authors sought)
>>
>> --
>> Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 I=C3=B8T consu=
lting
>> )
>>            Sandelman Software Works Inc, Ottawa and Worldwide
>> _______________________________________________
>> saag mailing list
>> saag@ietf.org
>> https://www.ietf.org/mailman/listinfo/saag
>>
>

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Content-Transfer-Encoding: quoted-printable

<div dir=3D"auto">I apologize I didn&#39;t realize my signature was off.<di=
v dir=3D"auto"><br></div><div dir=3D"auto">I agree with Michael&#39;s concl=
usions.<br><div data-smartmail=3D"gmail_signature" dir=3D"auto"><br>With Re=
gard,<br><br>Kronah Wood<br>Metapolymath, LLC<br>PO Box 19236<br>Lenexa, KS=
 66219-9236<br>+1.2139158297</div><div data-smartmail=3D"gmail_signature" d=
ir=3D"auto"><a href=3D"http://www.metapolymath.com">www.metapolymath.com</a=
><br><br>Sent from Mobile<br><br><br><br><br></div></div></div><br><div cla=
ss=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, Dec 29, 20=
20, 2:00 PM Metapolymath Majordomo &lt;<a href=3D"mailto:majordomo@metapoly=
math.com">majordomo@metapolymath.com</a>&gt; wrote:<br></div><blockquote cl=
ass=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;p=
adding-left:1ex"><div dir=3D"auto">Concur on amendments option.</div><br><d=
iv class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, Dec =
29, 2020, 1:20 PM Michael Richardson &lt;<a href=3D"mailto:mcr%2Bietf@sande=
lman.ca" target=3D"_blank" rel=3D"noreferrer">mcr+ietf@sandelman.ca</a>&gt;=
 wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8=
ex;border-left:1px #ccc solid;padding-left:1ex"><br>
Ira McDonald &lt;<a href=3D"mailto:blueroofmusic@gmail.com" rel=3D"noreferr=
er noreferrer" target=3D"_blank">blueroofmusic@gmail.com</a>&gt; wrote:<br>
=C2=A0 =C2=A0 &gt; The Internet Glossary is a very useful resource to many =
authors and many<br>
=C2=A0 =C2=A0 &gt; SDOs.=C2=A0 But it was published in August 2007, several=
 eras of technology in<br>
=C2=A0 =C2=A0 &gt; the past.=C2=A0 Since the definitions are often out-of-d=
ate in their references<br>
=C2=A0 =C2=A0 &gt; to<br>
=C2=A0 =C2=A0 &gt; source SDO definitions, they are sometimes inaccurate fo=
r current usage.<br>
<br>
hi, I&#39;m told that 4949 took a lot of compromise to arrive at.<br>
(I personally can&#39;t recall the debate at all, but I had a new baby arou=
nd<br>
that time)<br>
<br>
I think that doing 4949bis is probably the wrong approach.<br>
Instead, I would suggest a round of Updates (Amends) 4949, and then later o=
n,<br>
collect it back.<br>
<br>
We had a discussion a few weeks ago about on-path attackers vs packet dropp=
ing.<br>
I wrote draft-richardson-saag-onpath-attacker-00 to capture that discussion=
,<br>
and bring it forward, and yes, Amend rfc4949. (co-authors sought)<br>
<br>
--<br>
Michael Richardson &lt;<a href=3D"mailto:mcr%2BIETF@sandelman.ca" rel=3D"no=
referrer noreferrer" target=3D"_blank">mcr+IETF@sandelman.ca</a>&gt;=C2=A0 =
=C2=A0. o O ( IPv6 I=C3=B8T consulting )<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Sandelman Software Works Inc, Otta=
wa and Worldwide<br>
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