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Subject: Re: [ebxml-msg-as4] Groups - AS4 Profile Development Draft (AS4-Deployment-Profile-Draft-95.doc) uploaded


Re: #4 I would add that GZIP also had the distinction of being the algorithm specified by the ebMS v2 STAR Automotive Profile, which means there's already history between GZIP and ebMS. 


On Jan 12, 2009, at 6:25 PM, "Durand, Jacques R." <JDurand@us.fujitsu.com> wrote:

Pim:

In the AS4 call today, here is our take on your comments:

 
Jacques



-----Original Message-----
From: Pim van der Eijk [
mailto:pvde@sonnenglanz.net]
Sent: Monday, January 12, 2009 1:39 AM
To: Durand, Jacques R.; ebxml-msg-as4@lists.oasis-open.org
Subject: RE: [ebxml-msg-as4] Groups - AS4 Profile Development Draft (AS4-Deployment-Profile-Draft-95.doc) uploaded


Hello,

Here are some written review comments:

#1
Section 2.1.1 Pull authorisation, Security section. This mentions two options to secure the Pull signal.  In a single-hop context, a third option could be to use SSL/TLS client authentication and authorize based on the established client identity. 

<JD>
Usage Profiling (b) in table of 4.2.3 mentions this option. To be sure, 2.1.1 only talk of what a product MUST support, without making any rule on the use of these features (4.1 is making such rules, and 4.2 is letting users decide of their own usage rules that are still required for itneroperability).
So we decided we could improve on the wording in (b) of table 4.2.3, saying that SSL / TLS are an option that could be used independently from the two major options defined above.

#2
Section 2.1.1 Authorization option 1 is based on a separate WSS header targeted at an actor with value "ebms". This is from the core so it probably shouldn't change, but in SOAP 1.2 similar values are expressed as qualified URIs with values like "
http://www.w3.org/2003/05/soap-envelope/role/next" or "http://www.w3.org/2003/05/soap-envelope/role/ultimateReceiver", so would something like "http://docs.oasis-open.org/ebxml-msg/ebms/3.0/ns/..." be more appropriate?

<JD> because of compatibiity with Core V3, decided to not change this - not even allowing the alternative you mention: Sure it is more appropriate, but we can't undo what the Core V3 spec said...


#3
Section 2.1.1 "if the SSL protocol is used" --> "if transport level security is used"
The core spec references TLS 1.0 (which supersedes SSL) and IPsec.  
(Also in other parts of the spec) 

<JD> OK.  


#4
Section 3.1. Why the limitation to GZIP?  Most toolkits will support multiple compression mechanisms, and they have different pros/cons that a community could profile further.

<JD> GZIP was the mandatory compression in AS2, and that worked well. For the sake of interop, we decided to restrict to GZIP only, in terms of what a conforming product must support (you can have products that support alternatives in addition).


#5
Related comment on Payload PartProperties:
Would it be useful to have a convention to include the original filename too?

        <eb:Property name="FileName">order123.xml</eb:Property>

This information may also be in the MIME Content-Disposition, but some products don't provide access to MIME part information at the SOAP/ebMS layer and it may be more convenient to include it in the SOAP/ebMS header.

<JD> We discussed that one quite a bit. Indeed it is helpful to indicate  this info in ebMS header, in addition to having it in some MIME Content parameter (so this is an intended redundancy here).

 But that should remain an option, and there is no specific processing requirement associated with this anyway, productwise. Also, this information

So what we suggest, is to add in the Usage rules something like:

" In case users decide to report the file name associated with a MIME part in the ebMS header, it must follow the rules:

(a) must be done as a <property> element in <partinfo>, with the @name = "FileName",

(b) the value of this property must be same as the file name value in the corresponding COntent parameter XYZ."

It becomes then a user decision whether or not to use this property (agreements section under 4.2.8 )


#6
Section 4.1.2
"When sending a Receipt for this MEP, a Sending MSH conforming to this profile SHOULD NOT bundled the Receipt with any other ebMS message header or body."
Should this be (assuming "Sender", "Receiver" at ebMS level where the receiver is the one that pulls):
"When sending a Receipt for this MEP, a Receiving MSH conforming to this profile SHOULD NOT bundle the Receipt with any other ebMS message header or body."

But, is this restriction on bundling consistent with 2.1.1 "ebMS MEP", which does seem to allow for this level of bundling?

<JD> Not discussed yet. My $0.02:

>Should this be (assuming "Sender", "Receiver" at ebMS level where the receiver is the one that pulls):
Right, sending of a Receipt is not in the role of the Sending MSH .

>But, is this restriction on bundling consistent with 2.1.1 "ebMS MEP", which does seem to allow for this level of bundling?
No. 2.1.1 requires for the ability to "process" received bundled Receipts, for max interoperability. In theory that should not be necessary.


#7
Section 4.1.8
"reciept" --> "receipt"

<JD> Sure

 
#8
Section 4.2.3
Refers to SSL authentication, but does not provide P-mode parameters for specific certificates that are used/trusted.
Section 4.2.6 allows the community to specify trusted CAs, but some applications may want to control the specific certificates or use self-signed certificates. So a fine-grained control as is done at WSS configuration would make sense.

<JD> Not discussed yet. My $0.02: Yes we need more PMode parameters. Can you suggest whats needed to address your concern?


#9
Section 4.2.4
"contains a composite string" 
It would be cleaner to have separate P-mode parameters for these properties.

<JD> Not discussed yet. My $0.02: Problem is, at this level of granularity there might be many options that are different from one implementation to the other, and they are not really critical for AS4 interoperability. For example, an implementation will detect dups over a time window back from present time, another one will guarantee dup check for the last 1M messages, no matter how far in the past. Same for Replay parameters: could be controlled by timeout, by time interval * max retries, etc. Thtas why WS-RX decided to not standardize such paraemters.


#10
Section 4.2.6 (b)
Why are TLS encryption algorithms a "usage agreement" rather than part of the profile?
It seems important for technical interoperability of products.

<JD> Not discussed yet. My $0.02: You mean why aren't they part of the Conformance Profile section? The Conformance Profile dictates what a product MUST support (or in some cases, just a SHOULD).  So far, SSL or TLS  appears as out of scope of(orthogonal to) the AS4 profile: no product requirement on using these. They still appear in the "Usage agreement" part as a major agreement item for users to decide, and one that is advised to be used when using Pull Authorization option #1 without other security headers.


Pim

-----Original Message-----
From: jdurand@us.fujitsu.com [
mailto:jdurand@us.fujitsu.com]
Sent: 09 January 2009 00:50
To: ebxml-msg-as4@lists.oasis-open.org
Subject: [ebxml-msg-as4] Groups - AS4 Profile Development Draft
(AS4-Deployment-Profile-Draft-95.doc) uploaded

V0.95:
- Fixed all comments summarized in email 12/30 ("comments on 0.9")
- Cleaned-up the bundling option for Receipts both on the conf profile side and the usage profile side.
- Added the duplicate detection feature as required (see section 3), and added PMode config parameter for it in the Usage profile section.
- Added requirement for "MissingReceipt" new error code.
- Added a small section that summarizes the semantics of Receipts in AS4.

 -- Mr Jacques Durand

The document revision named AS4 Profile Development Draft
(AS4-Deployment-Profile-Draft-95.doc) has been submitted by Mr Jacques Durand to the ebXML Messaging Services AS4 SC document repository.  This document is revision #3 of AS4-Deployment-Profile-Draft-07b.doc.

Document Description:
v0.7b:
- Added some details to the Section 3.1 about the Compression feature.
V0.8
- Added compression profiling (section 3.1)
- updated authorization for light client (table 2.2.1, Security)
V0.9:
- added the proposed update for Compression indicator (additional eb:Property, in addition to the gzip content type)
- reorganized completely Section 4 (Deployment Profile now renamed Usage
Profile) with two major subsections: (4.1 AS4 Usage Rules, 4.2 AS4 Usage Agreements).
- enhanced the description of major agreement options (in new 4.2), and referenced appropriate PMode parameters.
- also added additional PMode parameters needed to control Delivery Awareness (Section 3).
V0.95:
- Fixed all comments summarized in email 12/30 (&quot;comments on
0.9&quot;)
- Cleaned-up the bundling option for Receipts both on the conf profile side and the usage profile side.
- Added the duplicate detection feature as required (see section 3), and added PMode config parameter for it in the Usage profile section.
- Added requirement for &quot;MissingReceipt&quot; new error code.
- Added a small section that summarizes the semantics of Receipts in AS4.

View Document Details:
http://www.oasis-open.org/committees/document.php?document_id=30589

Download Document: 
http://www.oasis-open.org/committees/download.php/30589/AS4-Deployment-Profi
le-Draft-95.doc

Revision:
This document is revision #3 of AS4-Deployment-Profile-Draft-07b.doc.  The document details page referenced above will show the complete revision history.


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