W3C

XML Security Working Group Teleconference
02 Dec 2008

Agenda

See also: IRC log

Attendees

Present
Scott Cantor, Sean Mullan, Frederick Hirsch, Robert Miller, Chris Solc, Shivaram Mysore, Thomas Roessler, Anil Saldana, Magnus Nystrom, Bruce Rich, Brad Hill, Prateek Datta, Brian LaMacchia, Gerald Edgar, Kelvin Yiu, Hal Lockhart
Regrets
Juan Carlos Cruellas, Konrad Lanz, Ed Simon
Chair
Frederick Hirsch
Scribe
Scott Cantor

Contents


 

 

<trackbot> Date: 02 December 2008

<scribe> Scribe: Scott Cantor

<scribe> Agenda: http://lists.w3.org/Archives/Public/public-xmlsec/2008Dec/0003.html

Administratrivia

F2F 13-14 January

logistics http://lists.w3.org/Archives/Member/member-xmlsec/2008Nov/0035.html

registratiion page http://www.w3.org/2002/09/wbs/42458/xmlsecredwood0109/

Liasons

ws-policy errata

http://lists.w3.org/Archives/Public/public-ws-policy/2008Nov/0002.html

Announcements

http://lists.w3.org/Archives/Public/public-xmlsec/2008Nov/0053.html

FIPS 186-3 (DSS)

please review and indicate any comments on the public list

pdatta: need attendance info for F2F a week before the meeting

Minutes Approval

http://www.w3.org/2008/11/18-xmlsec-minutes

RESOLUTION: Minutes for 18 Nov 2008 approved

<tlr> so marked

Issues

ISSUE-72 closed, requirement for DTD solved (up to WG, though preferred)

Best Practices

Default attributes in XML Signature

http://lists.w3.org/Archives/Public/public-xmlsec/2008Nov/0054.html

sean msg http://lists.w3.org/Archives/Public/public-xmlsec/2008Nov/0055.html

proposed resolution: adopt the proposal from magnus regarding default attributes, removing material starting with "Another possibility"

<brich> +1

RESOLUTION: adopt the proposal from magnus regarding default attributes, removing material starting with "Another possibility"

ACTION: fjh to add default attribute language to Best Practices doc [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action01]

<trackbot> Created ACTION-111 - Add default attribute language to Best Practices doc [on Frederick Hirsch - due 2008-12-09].

1.1 draft

http://www.w3.org/2008/xmlsec/Drafts/xmldsig-core-11/Overview.htm

http://www.w3.org/2008/xmlsec/Drafts/xmldsig-core-11/xmldsig-ecc.xsd

http://www.w3.org/2008/xmlsec/Drafts/xmldsig-core-11/Overview_diff.htm

fjh: suggested we drop DSA from required list

Still require DSAwithSHA1?

http://lists.w3.org/Archives/Public/public-xmlsec/2008Dec/0000.html

bal: original key size defined was too small anyway, and the RSA patent was the big driver for DSA

<csolc> required for verification

bal: would prefer to see it optional, not even recommended

<rdmiller> +1

bal: might want to say something about key size anyway, if it's left as required for verifying

bal: would prefer not to see it as recommended at all, and have the spec make it optional and note the issues around it

csolc: needs to be required to verify, but we need language either way explaining the issues

ACTION: bal to draft text on DSA issues for 1.1 [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action02]

<trackbot> Created ACTION-112 - Draft text on DSA issues for 1.1 [on Brian LaMacchia - due 2008-12-09].

<fjh> ietf feedback - http://lists.w3.org/Archives/Member/member-xmlsec/2008Dec/0001.html

fjh: need feedback from implementers on algorithm changes

<fjh> Brian action should include drafting language about MUST and MAY for DSAwithSHA1

fjh: want to publish a draft of 1.1 in January

fjh: would be good for tlr to get versioning text out to the list

ACTION: tlr to suggest text re versioning and namespaces for XML Signature [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action03]

<trackbot> Created ACTION-113 - Suggest text re versioning and namespaces for XML Signature [on Thomas Roessler - due 2008-12-09].

scantor: noted some 1.1 cleanup for text language eg RetrievalMethod etc could be useful

pdatta: think most of the newer proposals would be for 2.0, so not a short term impact on 1.1

group notes that streaming and transform material in 2.0

sean notes could encourage XPath filter in 1.1 instead of XPath

<csolc> +1

tlr: how much effort do we spend on the current transform model?

csolc notes moving transforms to optional in 1.1 is a heads up for 2.0

brich: seemed that 1.1 would be for adding algorithms, and 2.0 would take things out

fjh notes that 1.1 could have some clarifications - need to give heads up in email announcing 1.1 about 2.0, request feedback on 1.1 and requirements for 2.0

ACTION: scantor to propose language improvements for 1.1 draft [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action04]

<trackbot> Created ACTION-114 - Propose language improvements for 1.1 draft [on Scott Cantor - due 2008-12-09].

ACTION: smullan to craft language on encouraging XPath2 Filter for Best Practices doc [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action05]

<trackbot> Created ACTION-115 - Craft language on encouraging XPath2 Filter for Best Practices doc [on Sean Mullan - due 2008-12-09].

Certificate Encoding

http://lists.w3.org/Archives/Public/public-xmlsec/2008Nov/0050.html

scott outlined his proposal for 1.1 and also the best practices

scott noted based on text from Magnus with additions

RESOLUTION: accept proposed text for 1.1 and BP drafts

ACTION: fjh to add approved certificate encoding text to drafts [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action06]

<trackbot> Created ACTION-116 - Add approved certificate encoding text to drafts [on Frederick Hirsch - due 2008-12-09].

Public Web Site

http://lists.w3.org/Archives/Member/member-xmlsec/2008Nov/0033.html

RESOLUTION: approved updates to public web site

XML Signature schema

http://lists.w3.org/Archives/Public/public-xmlsec/2008Nov/0049.html

scott recorded issues he noted with xml Signature schema, in four categories

scott noted IDs, Attribute Extensibility, Mixed Content, KeyInfo child issues as issues

scott noted not a generic schema redesign from scratch but note of issues

scott noted that may not want to pass bare keys exactly as OpenSSL but need to do something, this would be a new element

scott asks is it appropriate for 1.1 to add this addition for key?

scott or additional document , perhaps using 2.0 namespace in advance

ACTION: scantor to propose a schema and language for bare key encoding in KeyInfo [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action07]

<trackbot> Created ACTION-117 - Propose a schema and language for bare key encoding in KeyInfo [on Scott Cantor - due 2008-12-09].

scott notes could use separate namespace for this, not 2.0 or 1.0

need to determine namespace to use for this

Requirements

updated draft http://lists.w3.org/Archives/Public/public-xmlsec/2008Nov/0044.html

web services requirements http://lists.w3.org/Archives/Public/public-xmlsec/2008Sep/0036.html

RESOLUTION: add Hal's text to requirements doc

ACTION: fjh to add web services text from Hal to Requirements draft [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action08]

<trackbot> Created ACTION-118 - Add web services text from Hal to Requirements draft [on Frederick Hirsch - due 2008-12-09].

http://www.w3.org/2008/xmlsec/Drafts/transform-note/Overview.html

ACTION: fjh to add pointer to Transforms note to Requirements draft [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action09]

<trackbot> Created ACTION-119 - Add pointer to Transforms note to Requirements draft [on Frederick Hirsch - due 2008-12-09].

Signature Metadata

ISSUE-32, http://www.w3.org/2008/xmlsec/track/issues/32

fjh: do we need to add metadata as a requirement for 2.0?

scott notes that one separable aspect of metadata is about signing context, signer etc. Applies to signature in a business sense...

<csolc> new namespace and add a version attribute.

<Gerald-Edgar> What kind of metadata are we speaking of? it could be anything about the signature. Will we be defing a standard set of metadata? One example would be the relation of the signature applied to other signatures such as signatures with expired certificates.

scott notes for whitespace topic could have class of documents that are not mixed content, hence requirement on c14n

<scantor> fjh: please send suggestions for F2F topics to list

Open Action Items

<scantor> fjh: will close pending actions

tlr has items for 1.1 including separating normative and informative references, so keep ACTION-2 open

tlr: W3C notes can be done as HTML or with xmlspec to generate the HTML

http://lists.w3.org/Archives/Public/public-xmlsec/2008Oct/0042.html

algorithm uri, document reference, what it is

Open Issues

fjh reviewed open issues

issue74 hmac-sha256 required in 1.1?

<kyiu> I think the issue is referring to a question about the status of HMAC-SHA256 in SP 800-57 Part 1

ACTION: kyiu to review SP 800-57 for HMAC-SHA256 item [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action10]

<trackbot> Created ACTION-120 - Review SP 800-57 for HMAC-SHA256 item [on Kelvin Yiu - due 2008-12-09].

issue-77 ordering requirement in signature 1.1

<scantor> ISSUE-70 closed

<scantor> Issue-77 can be closed

Summary of Action Items

[NEW] ACTION: bal to draft text on DSA issues for 1.1 [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action02]
[NEW] ACTION: fjh to add approved certificate encoding text to drafts [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action06]
[NEW] ACTION: fjh to add default attribute language to Best Practices doc [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action01]
[NEW] ACTION: fjh to add pointer to Transforms note to Requirements draft [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action09]
[NEW] ACTION: fjh to add web services text from Hal to Requirements draft [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action08]
[NEW] ACTION: kyiu to review SP 800-57 for HMAC-SHA256 item [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action10]
[NEW] ACTION: scantor to propose a schema and language for bare key encoding in KeyInfo [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action07]
[NEW] ACTION: scantor to propose language improvements for 1.1 draft [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action04]
[NEW] ACTION: smullan to craft language on encouraging XPath2 Filter for Best Practices doc [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action05]
[NEW] ACTION: tlr to suggest text re versioning and namespaces for XML Signature [recorded in http://www.w3.org/2008/12/02-xmlsec-minutes.html#action03]
 
[End of minutes]


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