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Re: Time to resurrect multi-key signatures in RPM?



Jeff Spaleta wrote:
On Wed, Aug 27, 2008 at 5:52 AM, Bojan Smojver <bojan rexursive com> wrote:
Well, just because we base our build comparisons right now on something as crude
as raw checksums, doesn't mean this has to be like that forever. We may find
ways of comparing builds differently to determine if they were compromised, by
explicitly excluding well known differences within binaries.

How about you back up and just work on this very specific problem of
deterministically doing build comparisons across disparate build
systems ..before we even begin to discuss how a multiple sigantory
process which relies on that.

Virtual machines, virtually identical as starting points? But what if it is the src rpm that is compromised so the builds will be identical because they both contain the modification? Now you need to have the packager verify again that the source that produced the 2 builds had only the changes he intended.

And if you are really paranoid you have to wonder about the compiler and any existing libraries too: http://cm.bell-labs.com/who/ken/trust.html.

--
  Les Mikesell
   lesmikesell gmail com


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