Re: [xri] Second thoughts

[John Bradley <jbradley@mac.com>]

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We discussed that option but requiring the XRD to always be base 64 =
encoded was not popular.

The advantage of XML Dsig is that clients not interested in the =
signature only have one format to worry about.

If someone wants to do an additional trust profile with something like =
SAML simple Sign that is fine but was rejected for a number of reasons =
as the default.

I think we should leave Dsig as is in the short term.

With tokens where there is a closer relationship to the binding the =
signature and encryption issues are somewhat different.

John B.
On 2010-02-02, at 8:41 PM, Breno de Medeiros wrote:

> On Tue, Feb 2, 2010 at 15:34, Eran Hammer-Lahav <eran@hueniverse.com> =
wrote:
>> First, WRAP is running away from crypto in general. It is based on =
the assumption that client developers are limited.
>>=20
>> We would all love to find a signature process that does not require =
canonicalization but that means moving the signature to the transport =
layer or in a separate document. We are going to leave the XML DSig in =
because it is very useful to have. But if you have new proposals, it =
would be great to consider them for the immediate set of protocols =
looking to use XRD.
>=20
> I think the approach with these standards is to have the payload base
> 64 encoded and attached with the signature.
>=20
> The clients download the payload, (optionally) verify the signature,
> and then extract the content (enveloping signature).
>=20
>=20
>>=20
>> However, I would like us not to lose focus considering we do not have =
alternatives at this point.
>>=20
>> EHL
>>=20
>>> -----Original Message-----
>>> From: Breno de Medeiros [mailto:breno@google.com]
>>> Sent: Tuesday, February 02, 2010 2:59 PM
>>> To: xri@lists.oasis-open.org
>>> Subject: [xri] Second thoughts
>>>=20
>>> Looking at developments since our decision to use XML DSig to sign =
XRD
>>> documents:
>>>=20
>>> - OAuth WRAP was launched with canonicalization-free signatures for =
tokens
>>> - Proposal for Salmon signatures based on canonicalization-free =
signatures on
>>> streams
>>>=20
>>> I am increasingly concerned that the directions is going away, not =
towards,
>>> meeting XML DSig.
>>>=20
>>> --
>>> --Breno
>>>=20
>>> =
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>>=20
>>=20
>=20
>=20
>=20
> --=20
> --Breno
>=20
> +1 (650) 214-1007 desk
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>=20


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