Re: More on Atom XML signatures and encryption

2005-06-21 Thread Dan Sandler
On Jun 20, 2005, at 11:17 PM, James M Snell wrote: The thought here then is that feeds would not be considered atomic units and that entry / elements can be pulled as is out of a containing feed / element and passed around independently of it. That's basically the idea, yes. That really

Re: More on Atom XML signatures and encryption

2005-06-21 Thread James M Snell
OK, so given the arguments I previously posted in my response to Dan + the assertion that digitally signing individual entries will be necessary, the only real possible solution would be to come up with a canonicalization scheme for digitally signed Atom entries. When applied to an entry,

Re: More on Atom XML signatures and encryption

2005-06-21 Thread Bob Wyman
James M Snell wrote: the ability to omit the author element from a contained entry / if the containing feed has an author... Signed entries should include a source element and that source element should contain any of the feed level elements that the entry depends on. This is one of the

Re: More on Atom XML signatures and encryption

2005-06-21 Thread Antone Roundy
On Monday, June 20, 2005, at 11:33 PM, James M Snell wrote: OK, so given the arguments I previously posted in my response to Dan + the assertion that digitally signing individual entries will be necessary, the only real possible solution would be to come up with a canonicalization scheme for

Re: More on Atom XML signatures and encryption

2005-06-21 Thread James M Snell
Paul Hoffman wrote: At 2:15 PM -0700 6/20/05, James M Snell wrote: The spec already allows enveloped XML signatures for the document. Question: should we only allow signing of the entire document or are there valid use cases for allowing each individual entry in the feed to be

Re: More on Atom XML signatures and encryption

2005-06-21 Thread Scott Wilson
Here's a use-case: I aggregate entries from several sources and create a composite feed. I want entries that were signed in the source feeds to still carry their original signatures in the composite feed, so that parsers can check that the entry has not been modified since it was issued by

Re: More on Atom XML signatures and encryption

2005-06-21 Thread Eric Scheid
On 22/6/05 1:39 AM, Paul Hoffman [EMAIL PROTECTED] wrote: One would also have to contend with the potential problems introduced by namespace declarations with the feed. The bottom line of this is that an entry with a signature could not simply be copied over to a new containing feed

Re: More on Atom XML signatures and encryption

2005-06-21 Thread James M Snell
Eric Scheid wrote: On 22/6/05 1:39 AM, Paul Hoffman [EMAIL PROTECTED] wrote: One would also have to contend with the potential problems introduced by namespace declarations with the feed. The bottom line of this is that an entry with a signature could not simply be copied over to a new