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Subject: RE: RE: [ws-sx] Issue 117: Element or Content Encryption on SignedEncryptedSupportingTokens Assertion


After some internal discussion, we are now in favor of making the rule
that all encryption is #Element, except for the SOAP <Body>. This is
what I believe both Chris and Gudge are supporting.

Hal

> -----Original Message-----
> From: Hal Lockhart
> Sent: Tuesday, October 31, 2006 12:14 PM
> To: Martin Gudgin; Marc Goodner; ws-sx@lists.oasis-open.org
> Subject: RE: RE: [ws-sx] Issue 117: Element or Content Encryption on
> SignedEncryptedSupportingTokens Assertion
> 
> The argument for encrypting the content of a token is that an
> unacceptable token type can be rejected without performing the
> decryption first. This provides some protection against one class of
DoS
> attacks.
> 
> However, we are mostly interested in seeing this clarified, as opposed
> to insisting on a particular choice.
> 
> Hal
> 
> > -----Original Message-----
> > From: Martin Gudgin [mailto:mgudgin@microsoft.com]
> > Sent: Monday, October 30, 2006 8:08 PM
> > To: Martin Gudgin; Marc Goodner; Hal Lockhart;
> ws-sx@lists.oasis-open.org
> > Subject: RE: RE: [ws-sx] Issue 117: Element or Content Encryption on
> > SignedEncryptedSupportingTokens Assertion
> >
> > Further to my previous, terse, missive;
> >
> > In the WSS 1.0 interop[1] (and subsequent WSS 1.1 interop[2]) the
> > UsernameToken was encrypted using #Element. This further reinforces
my
> > belief that #Element is what we want here.
> >
> > Cheers
> >
> > Gudge
> >
> > [1] http://www.oasis-
> >
open.org/apps/org/workgroup/wss/download.php/2362/wss-interop1-draft-
> > 05.doc
> > [2] http://www.oasis-
> >
>
open.org/apps/org/workgroup/wss/download.php/12997/wss-11-interop-draft-
> > 01.doc
> >
> > -----Original Message-----
> > From: Martin Gudgin [mailto:mgudgin@microsoft.com]
> > Sent: Tuesday, October 24, 2006 8:41 PM
> > To: Marc Goodner; Hal Lockhart; ws-sx@lists.oasis-open.org
> > Subject: RE: [ws-sx] Issue 117: Element or Content Encryption on
> > SignedEncryptedSupportingTokens Assertion
> >
> > Hal,
> >
> > I don't understand why I'd want to use #content when encrypting
> tokens. I
> > would have thought #element more likely.
> >
> > Gudge
> >
> > -----Original Message-----
> > From: Marc Goodner [mailto:mgoodner@microsoft.com]
> > Sent: Monday, October 23, 2006 10:20 AM
> > To: Hal Lockhart; ws-sx@lists.oasis-open.org
> > Subject: [ws-sx] Issue 117: Element or Content Encryption on
> > SignedEncryptedSupportingTokens Assertion
> >
> > Issue 117.
> >
> > -----Original Message-----
> > From: Hal Lockhart [mailto:hlockhar@bea.com]
> > Sent: Thursday, October 19, 2006 10:33 AM
> > To: ws-sx@lists.oasis-open.org
> > Cc: Marc Goodner
> > Subject: NEW Issue: Element or Content Encryption on
> > SignedEncryptedSupportingTokens Assertion
> >
> > PLEASE DO NOT REPLY TO THIS EMAIL OR START A DISCUSSISON THREAD
UNTIL
> > THE ISSUE IS ASSIGNED A NUMBER.
> >
> > The issues coordinators will notify the list when that has occurred.
> >
> > Protocol:  ws-sp
> >
> > WS-SecurityPolicy 1.2, Editors Draft 01, 01 September 2006
> > ws-securitypolicy-1.2-spec-ed-10
> >
> >
>
<http://www.oasis-open.org/apps/org/workgroup/ws-sx/download.php/20579/w
> > s-securitypolicy-1.2-spec-ed-01-r10.doc>
> >
> > Artifact:  spec
> >
> > Type: design
> >
> > Title: Element or Content Encryption on
> SignedEncryptedSupportingTokens
> > Assertion
> >
> > Description:
> >
> > Section 8.5 SignedEncryptedSupportingTokens does not define whether
to
> > use Element Encryption or Content Encryption to encrypt the token.
> This
> > will be difficult to interop with different implementations and
create
> > some confusion to the user.  Section 8.6
> > EndorsingEncryptedSupportingTokens Assertions and Section 8.7
> > SignedEndorsing EncryptedSupportingToken Assertions have the same
> issue.
> >
> > Related issues: none
> >
> > Proposed Resolution:
> >
> > Add one sentence to Sec. 8.5, Sec. 8.6, and Sec. 8.7: "Content
> > Encryption should be used for encrypting the supporting tokens.



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