On Sat, 19 Nov 2005 15:29:30 +0900 Jason Stubbs <[EMAIL PROTECTED]> wrote:
> On Saturday 19 November 2005 15:01, Robin H. Johnson wrote: > > After my post to -core about how to move ahead with signing, I > > thought the next best place to continue is in a discussion of how > > Portage handles manifests and their signatures. > > > > First, the blatantly obvious, for the benefit of same developers, > > even though it's not relevant to signing. It is still a weak-point > > and does need to be addressed. Multiple-hashes! > > Yep, portages that don't break on multiple hashes being specified > have been around long enough for this to now be feasible. Hmm, sneak it in .53? *g* Just joking. > > So now the new Manifest structure looks roughly like this > > (abbreviated): -- PGP > > MD5 ... > > MD5 ... > > -- SIG > > -- SIG > > -- PGP > > MD5 ... > > -- SIG > > -- SIG > > etc. > > > > This has one important implication for backwards compatibility in > > checking of Manifests. > > In the case that a filename appears more than once in the file, only > > the last instance of it should be used, as that is the one that > > relates to the current version of the file. It's 4 lines of code in > > the current portage that need to be removed for this to work (see > > my -core post for where exactly). > > Hence, if we fix it in the next version we still have to wait six > months to a year for most everybody to be using it so we don't break > lots and lots of systems... > > Wouldn't it be easier to just disallow unsigned commits on the server > side? Probably, but might have an impact on server load (but Robin is the expert there ;). But that only covers one part of Robins problem (unsigned commits) but not the other (resigning of unchanged files), so he still needs the transactional Manifests, but I don't think the problem is worth the complications. Marius -- Public Key at http://www.genone.de/info/gpg-key.pub In the beginning, there was nothing. And God said, 'Let there be Light.' And there was still nothing, but you could see a bit better.
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