Subject: Re: [CDNi] FW: I-D Action: draft-ietf-cdni-uri-signing-04.txt

From: Kevin Ma J <[email-masked]>
Date: Mon, 20 Jul 2015 08:19:05 +0000

Hi Ray,

  A couple comments/questions on the latest draft updates below.

thanx.

--  Kevin J. Ma

section 3.2: "This information element is only used in combination with the chained Signed Token mechanism for HTTP Adaptive Streaming" -> "This information element, in combination with the chained Signed Token mechanism, may be used for HTTP Adaptive Streaming"

section 5.4: "skipped in case the chained Signed Token mechanism for HTTP Adaptive Streaming content is not used"
             Does token chaining have other applications beyond HAS?

section 3.4: "The query string parameter name of the URI Signing Package Attribute defined in the CDNI Metadata interface."
             Is the same name used as the HTTP header/cookie for Signed Tokens?  Or is an additional metadata property required?

section 4.2.2.2.1: "The HTTP Header name to use is communicated via the CDNI Metadata Interface or set via configuration."
                   Is the intent that the HTTP header name for a signed token must match the query string parameter for a signed URI?  Or should there be a separate metadata property?

section 4.2.2.2.2: "Add a 'URISigningPackage' cookie to the HTTP 2xx Successful message"
                   Is the cookie name not configurable?

section 4.2: "a initial Signed Token" -> "an initial Signed Token"

section 5.4.1: "in seconds sinds epoch" -> "in seconds since epoch"

> -----Original Message-----
> From: CDNi [mailto:[email-masked]] On Behalf Of Brandenburg, R.
> (Ray) van
> Sent: Monday, June 01, 2015 8:07 AM
> To: [email-masked]
> Subject: [CDNi] FW: I-D Action: draft-ietf-cdni-uri-signing-04.txt
> 
> Hi all,
> 
> We’ve just uploaded a new version of draft-ietf-cdni-uri-signing (-04).
> This update includes the HTTP Adaptive Streaming extensions we discussed
> in Dallas.
> 
> I’m looking forward to your comments.
> 
> Best regards,
> 
> Ray
> 
> 
> 
> 
> 
> On 01/06/15 14:04, "CDNi on behalf of [email-masked]" <cdni-
> [email-masked] on behalf of [email-masked]> wrote:
> 
> >
> >A New Internet-Draft is available from the on-line Internet-Drafts
> directories.
> > This draft is a work item of the Content Delivery Networks
> Interconnection Working Group of the IETF.
> >
> >        Title           : URI Signing for CDN Interconnection (CDNI)
> >        Authors         : Kent Leung
> >                          Francois Le Faucheur
> >                          Ray van Brandenburg
> >                          Bill Downey
> >                          Michel Fisher
> >	Filename        : draft-ietf-cdni-uri-signing-04.txt
> >	Pages           : 55
> >	Date            : 2015-06-01
> >
> >Abstract:
> >   This document describes how the concept of URI signing supports the
> >   content access control requirements of CDNI and proposes a URI
> >   signing scheme.
> >
> >   The proposed URI signing method specifies the information needed to
> >   be included in the URI and the algorithm used to authorize and to
> >   validate access requests for the content referenced by the URI.  The
> >   algorithm includes specific provisions for allowing access control of
> >   HTTP Adaptive Streaming content that is characterized by independent
> >   chunks referenced by a manifest file.
> >
> >   The proposed mechanism is also applicable in a non-CDNI context.
> >
> >
> >The IETF datatracker status page for this draft is:
> >https://datatracker.ietf.org/doc/draft-ietf-cdni-uri-signing/
> >
> >There's also a htmlized version available at:
> >https://tools.ietf.org/html/draft-ietf-cdni-uri-signing-04
> >
> >A diff from the previous version is available at:
> >https://www.ietf.org/rfcdiff?url2=draft-ietf-cdni-uri-signing-04
> >
> >
> >Please note that it may take a couple of minutes from the time of
> submission
> >until the htmlized version and diff are available at tools.ietf.org.
> >
> >Internet-Drafts are also available by anonymous FTP at:
> >ftp://ftp.ietf.org/internet-drafts/
> >
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