Re: [i2rs] quick comment on draft-hares-i2rs-auth-trans-00

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Hi Alia,

Just a remark on your comment about section 3.1: I think the current =
requirement of associating a single secondary identity per connection =
does make sense if we want to keep traceability over I2RS secure =
transports.=20

You need to associate secondary identities with primary ones in a secure =
way to guarantee such traceability, and the mechanisms for this I can =
imagine using current transports (such as a certificate extension or =
alternate identity, or additional information in secure tokens) are =
associated with connection handshake, and therefore re-association is =
complicated to implement without restarting the connection. Note I say =
complicated, not impossible, but I cannot see the advantage in the =
additional complexity, especially when experience shows that additional =
complexity becoming source of security flaws...

Be goode,

On 11 Jun 2015, at 22:11 , Alia Atlas <akatlas@gmail.com> wrote:

> <no-hat>
>=20
> Sue,
>=20
> Thanks for writing this draft.  I think it is useful to clearly =
articulate the outside-of-I2RS behavior and protocols that are needed =
for the mutual authentication.  I do have a couple comments on the =
draft.
>=20
>=20
> In Sec 3.1, it says "Each Identity will be linked to one secondary =
identity for the period of a connection."  I would have assumed that the =
client could arbitrarily change its' secondary identity.  This is to =
support the broker case where a client may be passing along requests =
from multiple applications.  Since the secondary identity is just passed =
along and stored for traceability, I don't think that allowing it to =
change would cause significant complications.   What do others think?
>=20
>=20
> In the I2RS architecture, there are 3 different types of transaction =
behavior desired for processing a message. In Sec 4, there's an =
assumption that "fail-on-error" with the associated roll-back is the =
only mode.   Thus, I think that Section 4 needs a bit of massaging.
>=20
>=20
> Thanks,
>=20
> Alia
> _______________________________________________
> i2rs mailing list
> i2rs@ietf.org
> https://www.ietf.org/mailman/listinfo/i2rs

--
"Esta vez no fallaremos, Doctor Infierno"

Dr Diego R. Lopez
Telefonica I+D
http://people.tid.es/diego.lopez/

e-mail: diego.r.lopez@telefonica.com
Tel:    +34 913 129 041
Mobile: +34 682 051 091
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Hi =
Alia,<div><br></div><div>Just a remark on your comment about section =
3.1: I think the current requirement of associating a single secondary =
identity per connection does make sense if we want to keep traceability =
over I2RS secure transports.&nbsp;</div><div><br></div><div>You need to =
associate secondary identities with primary ones in a secure way to =
guarantee such traceability, and the mechanisms for this I can imagine =
using current transports (such as a certificate extension or alternate =
identity, or additional information in secure tokens) are associated =
with connection handshake, and therefore re-association is complicated =
to implement without restarting the connection. Note I say complicated, =
not impossible, but I cannot see the advantage in the additional =
complexity, especially when experience shows that additional complexity =
becoming source of security flaws...</div><div><br></div><div>Be =
goode,</div><div><br><div><div>On 11 Jun 2015, at 22:11 , Alia Atlas =
&lt;<a href=3D"mailto:akatlas@gmail.com">akatlas@gmail.com</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"><div dir=3D"ltr">&lt;no-hat&gt;<br><br>Sue,<br><br>Thanks=
 for writing this draft.&nbsp; I think it is useful to clearly =
articulate the outside-of-I2RS behavior and protocols that are needed =
for the mutual authentication.&nbsp; I do have a couple comments on the =
draft.<br><br><br>In Sec 3.1, it says "Each Identity will be linked to =
one secondary identity for the period of a connection." &nbsp;I would =
have assumed that the client could arbitrarily change its' secondary =
identity.&nbsp; This is to support the broker case where a client may be =
passing along requests from multiple applications.&nbsp; Since the =
secondary identity is just passed along and stored for traceability, I =
don't think that allowing it to change would cause significant =
complications. &nbsp; What do others think?<br><br><br>In the I2RS =
architecture, there are 3 different types of transaction behavior =
desired for processing a message. In Sec 4, there's an assumption that =
"fail-on-error" with the associated roll-back is the only mode. &nbsp; =
Thus, I think that Section 4 needs a bit of =
massaging.<br><br><br>Thanks,<br><br>Alia</div>
_______________________________________________<br>i2rs mailing =
list<br><a =
href=3D"mailto:i2rs@ietf.org">i2rs@ietf.org</a><br>https://www.ietf.org/ma=
ilman/listinfo/i2rs<br></blockquote></div><br><div =
apple-content-edited=3D"true">
<div style=3D"color: rgb(0, 0, 0); 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; word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;">--<br>"Esta vez no fallaremos, Doctor =
Infierno"<br><br>Dr Diego R. Lopez<br>Telefonica I+D<br><a =
href=3D"http://people.tid.es/diego.lopez/">http://people.tid.es/diego.lope=
z/</a><br><br>e-mail: diego.r.lopez@telefonica.com<br>Tel: &nbsp; =
&nbsp;+34 913 129 041<br>Mobile: +34 682 051 =
091<br>----------------------------------</div>

</div>
<br></div></body></html>=

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