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Hi Michael,

On 07/07/2013 07:26 AM, Michael Chen wrote:
> Hi
> 
> In the current p2psip-base-26, section 7.3.1, 7.3.2, 7.3.3, 7.3.4 and
> 13.5.1, all refers to "the hash function for the overlay". For example,
> 
> 
> In the USER-MATCH policy, a given value MUST be written (or overwritten) if
> and only if the signer's certificate has a user name which hashes (using
> *the hash function for the overlay*) to the Resource-ID for the resource.
> Recall that the certificate may, depending on the overlay configuration, be
> self-signed.
> 
> 
> However, there is no such hash function defined in the configuration XML,
> except the <self-signed-permitted> tag's "digest" attribute. The 
> <self-signed-permitted> tag does not exist for enrolled overlay
> configuration.

The hash function is indirectly defined by the <topology-plugin> element.
When it is set to CHORD-OVERLAY (or if the element is not present), then the
hash definition is the one in 10.2.

> 
> While the RELOAD signature dynamically specifies the hash function in used,
> we need an explicit hash function contract for other usage like computing
> the Resource-ID from the SIP AoR.
> 
> I propose moving the "digest" attribute out of <self-signed-permitted> tag
> and into the top level <configuration> tag, alongside "instance-name",
> etc., or adding a new attribute to that effect.
> 

- -- 
Marc Petit-Huguenin
Email: [email protected]
Blog: http://blog.marc.petit-huguenin.org
Profile: http://www.linkedin.com/in/petithug
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