Title: RE: [saml-dev] SAML artifact source id config.
Hal
explains the right reason for this discussion:
"the
destination site will maintain a table of SourceID values "
"This
information is communicated between the source and destination sites
out-of-band."
This
means the source will tell destination site
some information about the
SourceID, for
example, by email . So that
destination site is able to maintain that table.
Should we consider to
suggest this
out-of-band information be in plain text,
instead of 20 byte sequence? As it's hard
to
put that 20-bytes into a config file
without any
conversion.
Thanks,
-Fred
-----Original Message-----
From:
Mishra, Prateek
Sent: Thursday, April 18, 2002 5:10 PM
To:
'Hal Lockhart'; Chen, Fred;
Subject: RE:
[saml-dev] SAML artifact source id config.
Hal,
The issue
here is simply that the out-of-band message is
a 20-byte
sequence (not a string!). That is all. Folks participating
in the web
browser profile should ensure that their administration
GUIs etc.
do not assume that the partner source ID is a string.
It is an
arbitrary 20 byte sequence and may be delivered,
(out of
band) using hex, just for example.
-
prateek
-----Original Message-----
From: Hal Lockhart
[mailto:]
Sent: Thursday, April 18, 2002
5:00 PM
To: 'Chen, Fred';
Subject: RE: [saml-dev] SAML
artifact source id config.
I don't understand this at all. Section 4.1.1.8 (lines
567-570) says:
"SourceID is a 20-byte sequence used by the destination site
to determine source site identity and location. It is assumed that the
destination site will maintain a table of SourceID values as well as the URL
(or address) for the corresponding SAML responder. This information is
communicated between the source and destination sites
out-of-band."
Out of band means not in any SAML message. I don't see
anything to specify here.
When contained in the artifact and sent via URL encoding, it
is base64 encoded.
What am I missing?
Hal
> -----Original Message-----
>
From: Chen, Fred [mailto:]
> Sent: Thursday, April 18, 2002 4:31 PM
> To:
> Subject: [saml-dev] SAML artifact source id config.
>
>
> Hi folks,
>
> I am writing some code to support saml browser/artifact
profiling.
> According to
draft-sstc-bindings-model-15, In section
>
4.1.1.6, it says "In
> steps 4 and 5, the
destination site, in effect, dereferences
> the
one or more
> SAML artifacts in its possession in
order to acquire the SAML
> authentication
> assertion ...."
> I run
into a problem that when the destination site composes
> a config file
> in its possession. As
its partner sends the 20-byte code,
> which is
typically
> a SHA-1 output with some
non-displayable characters, you must
> have
awared
> that a conversion from byte array into
plain text is needed.
> This may cause
> some man made error or code burden/incompatibility on
the
> destination site.
>
> How about its partner sends the hex
string or Base64 encoded
> string of the
> SourceID for the agreement/configuration purpose.
>
> Please note, this
doesn't affect the artifact format of
> section
4.1.1.8.
>
> Any
thought?
>
>
-Fred
>
>
>
>
>
>
>
>
>
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