[rb-general] [jvm] How to share rebuilder attestations

Holger Levsen holger at layer-acht.org
Mon Jan 7 14:48:32 CET 2019


On Mon, Jan 07, 2019 at 01:39:35PM +0000, Daniel Shahaf wrote:
> Bit-for-bit reproducibility should be our goal, but it's not a _sine qua
> non_.  In a pinch, out of pragmatism, one can get by with less.  For
> example, if there were some binary package whose rebuilds are identical
> up to the copyright year in the commented header of some script file,
> that'd be workable.  The process of comparing two binaries to confirm
> they match would be more expensive, and the probability of false
> positive comparisons (binaries that compare equal but aren't) higher,
> but that doesn't make that package _insecure_; it merely makes it _less
> secure_.  (Security isn't a binary dimension.)

this makes the verification process more insecure though, if the
verification tools needs to parse the data...

iirc signal had such a verification tool, which would exclude some areas
when comparing two signal builds. and within a day a bug was found in
that tool...


-- 
cheers,
	Holger

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