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Subject: Re: [security-services] Minutes 2010-11-16 Correction


Thanks for the correction Hal.  Sorry about that.

Thanks,
George

On Nov 30, 2010, at 10:03 AM, "Hal Lockhart" <hal.lockhart@oracle.com> wrote:

> My name is wrong in section (f)
> 
>> -----Original Message-----
>> From: Nate Klingenstein [mailto:ndk@internet2.edu]
>> Sent: Wednesday, November 17, 2010 11:04 AM
>> To: security-services@lists.oasis-open.org
>> Subject: Re: [security-services] Minutes 2010-11-16 (no attendance)
>> 
>> 
>> Tacking attendance on to the minutes:
>> 
>> Hal Lockhart
>> George Fletcher
>> Rob Philpott
>> Gregory Neven
>> Franz-Stefan Preiss
>> John Bradley
>> Scott Cantor
>> Nathan Klingenstein
>> Chad La Joie
>> Bob Morgan
>> Anthony Nadalin
>> Frederick Hirsch
>> Phil Hunt
>> Ari Kermaier
>> Hal Lockhart
>> Emily Xu
>> David Staggs
>> 
>> And, I forgot to thank George at the end of the call for taking these
>> minutes, so I'll take the opportunity to do so now.
>> 
>> Talk to you all on Nov. 30.
>> 
>> On 2010-11-16 18:14, George Fletcher wrote:
>>> Please review and send corrections. It very possible I got
>> some of the
>>> security/crypto semantics wrong:)
>>> 
>>> Thanks,
>>> George
>>> 
>>> SSTC Call 16 Nov 2010
>>> 
>>> 1. Roll Call & Agenda Review.
>>> 
>>> 2. Need a volunteer to take minutes.
>>>   -- George Fletcher
>>> 
>>> 3. Approval of minutes from last meetings:
>>> 
>>>   - Minutes from SSTC Call on 2 Nov 2010:
>>> 
>>> 
>>> 
>> http://www.oasis-open.org/apps/org/workgroup/security/email/ar
>> chives/201011/msg00011.html
>>> 
>>>    Motion: Hal moves, John seconds, motion passes to
>> approve the minutes
>>> 
>>> 
>>> 4. AIs & progress update on current work-items:
>>> 
>>>  (a) Current electronic ballots: none currently open.
>>> 
>>>  (b) Status/notes regarding past ballots:
>>> 
>>>     (i)  Service Provider Request Initiation Protocol and
>>>          Profile V1.0 as a Committee Specification.
>>>          Status: 11 out of 16 Yes (69%).
>>> 
>>>     (ii) SAML V2.0 Identity Assurance Profiles Version 1.0 as
>>>          a Committee Specification.
>>>          Status: 11 out of 15 Yes (73%).
>>> 
>>> 
>>>  (c) Kerberos related items. [Josh/Thomas]
>>>      - Kerberos Attribute Profile:
>>>      - AI: Josh/Thomas will suggest additions to Attribute Profile.
>>>      - AI: Thomas to move ahead with Web SSO and Subj Confirmation
>>> profiles.
>>> 
>>>  (d) SAML V2.0 Identity Assurance Profiles, Version 1.0
>>>      - Status: 15-day review closed on 10 Sept.
>>>      - Status:  Ballot passed 4 Nov. See above.
>>> 
>>>      Next steps: Mary to create a committee specification, Scott
>>> helping to generate
>>>        the HTML.
>>>        Scott: some ambiguity around specs that references it's own
>>> schema
>>>        -- Mary requesting a designated cross reference
>>>        -- not sure what is in the created package
>>>        -- something to watch for in the future
>>>        -- prefers a normative reference to the schema in
>> the document
>>>        -- not concerned with fixing it for this spec
>>>        -- Mary accepted the HTML that Scott generated
>>> 
>>>  (e) SAML V2.0 Metadata Profile for Algorithm Support Version 1.0:
>>>      - Status: Thomas to ask Mary for (i) CSD version
>> (from draft-03)
>>> and
>>>        (ii) to Start new 15 day of CSD.
>>> 
>>>      Waiting on the the CSD from Mary
>>>      Will ask Thomas to update the public template once the CSD is
>>> generated
>>> 
>>>  (f) Gregory Neven (IBM): Primelife Project (presentation)
>> - 30 mins.
>>> 
>>>      Presentation:
>>> 
>> http://www.oasis-open.org/apps/org/workgroup/security/email/ar
>> chives/201011/msg00034.html
>>> 
>>>      Identity Mixer and U-Prove
>>>      -- some technical differences
>>>         -- U-Prove -- can only show a token once (one-time-use)
>>>         -- Identity Mixer -- can generate as many tokens
>> as you want
>>> 
>>>      Slide 8: Maybe ConditionStatement should be PredicateStatement
>>> 
>>>      Ask: Is defining predicates over attributes a good idea?
>>> 
>>>      Tom Lockhard will act as liason between XACML and SS TCs
> 
> Hal Lockhart will act as liason between XACML and SS TCs
> 
>>> 
>>>      John Bradley: Proposing that SAML Assertions have ranges?
>>>       -- Is the SAML Assertion a signed IDMix token? or
>> does the SAML
>>> Assertion
>>>          contain signed IDMix tokens?
>>>       -- Greg: Not yet defined how to put IDMix tokens into SAML
>>> Assertion
>>>          -- would need a new XMLDSig mechanism
>>>          -- could also support predicates over attributes
>> in normal
>>> SAML Assertions
>>>             -- just loses the anonymous token featurs of IDMix or
>>> U-Prove
>>> 
>>>      What is the appeal of using SAML Assertions as a wrapper?
>>>      -- already defined standard in wide use
>>>      -- seems to be a natural extension
>>> 
>>>      Most of the challenges to define the full flow are on
>> the XACML
>>> side
>>> 
>>>      SAML work is standardization of the additional statement type
>>>      -- also needs an AssertionRequest to specify predicates over
>>> attributes
>>> 
>>>      Do we need to support two issuers?
>>>      -- issuer of the attributes
>>>      -- issuer of the masked token
>>>      -- Greg: in the case of IDMix technology
>>>         -- the user is creating the SAML Assertion
>>>      -- John: looked at this in the "infocard" TC
>>>         -- called selective blinding
>>>         -- generally need a smart client to take advantage of this
>>>      -- may map ok to the existing SAML schema
>>> 
>>>      Scott: Does WS-Fed support any predicates over attributes
>>>      -- WS-Trust allows for ranges or member of a set
>>> 
>>>      Scott: +1 using a different statement name
>>>      -- how much of the XACML schema gets pulled in if we
>> pull in the
>>> predicate part?
>>>         -- Hal: simplist is to pull in all the XACML
>> ConditionStatement
>>>         -- Hal: it's just more work to subset the full
>> set, but may
>>> be the better option
>>>      -- Greg: if not using IDMix, an online IDP could sign any
>>> predicate so
>>>         recommending not doing too much sub-setting
>>>         -- Hal: concern is that deployers don't want to
>> implement the
>>> full set
>>>         -- Scott: maybe define a subset for at least conformance
>>> purposes
>>>      -- Hal: One subset is the "target" functions
>>> 
>>>      Sufficient interest (based on conversation) to
>> standardize this
>>> in the SSTC
>>>      AI: Greg to propose a working draft for the SSTC to consider
>>>      -- focus on the "predicate statement", identify functions
>>>      -- not a finished draft, rather initial profile
>>> 
>>>  (g) Hal Lockhart:  Session Token Profile (new work)
>>> 
>>>      Purpose: pass state information between
>>>      -- Assertion contain AuthenticationStatement and
>> AttributeStatement
>>>      -- main state that will change frequently -- time of
>> last activity
>>>      -- Mechanism (two options)
>>>         -- Assertion signed [encrypted] and passed in a cookie
>>>         -- Cookie contains unguessable "reference" that
>> resolves to
>>> the Assertion
>>> 
>>>      Some concern about cookie size and how store the
>> Assertion in a
>>> cookie
>>> 
>>>      Supporting RESTful transport for SAML protocols
>>>      -- outside the scope of this profile
>>> 
>>>      Describe the Cookie passing mechanism of a new binding (as an
>>> option)
>>> 
>>>      Rob: Does the Assertion include an SSO Assertion?
>>>      -- managing the different validatiy periods is important
>>> 
>>>      A bit like creating a Session Assertion instead of an
>> SSO Assertion
>>>      -- call it SessionToken
>>> 
>>>      Scott: may be able to reuse the URI binding (designed to be
>>> unguessable)
>>>      -- need to make sure that if reusing the URI binding, the
>>> non-collision
>>>         values also need to be unguessable
>>> 
>>>      Hal: proposed reusing the Artifact Protocol
>>>      -- Scott: the Artifact is a protocol message mechanism not an
>>> unguessable
>>>                URI binding
>>> 
>>> 
>>>  (h) NSN Attribute Management proposal (Thinh/Phil) - any updates?
>>> 
>>>      Phil: Draft posted before the last meeting
>>>      -- no changes since the last posting
>>>      -- if no questions, would like to move to CD
>>> 
>>>      Research community is looking at this but don't have feedback
>>> quite yet
>>>      -- Chad: doesn't know if they will have feedback or not
>>>      -- Tom: to provide Phil information by the end of the
>> week as to
>>> what the
>>>              scope of changes might be
>>> 
>>>      Plan to wait for CD vote till the next SSTC call (two weeks)
>>>      -- allow for more comments by those interested
>>> 
>>>      Scott: will try and do a schema pass before the next SSTC call
>>> 
>>> 
>>>  (i) Channel binding proposal (Scott) - any updates?
>>> 
>>>      Scott: no updates
>>>      -- some issues
>>>      -- interest in determining if it's possible to inject
>> into web
>>> browsers
>>> 
>>> 
>>>  (j) Metadata extension for Login/Discovery (Scott) - any updates?
>>> 
>>>      Scott: addition to add general searchable keywords
>>>      -- will be updating the draft
>>> 
>>> 
>>>  (k) Enhanced Client or Proxy Profile (Scott) - any updates?
>>> 
>>>      Scott: no updates
>>>      -- still has to do the holder-of-key work
>>>      -- resistence in the Kitten group about adopting two
>> different
>>> SAML proposals
>>> 
>>> 
>>> 
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