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Re: Cloning from sites with 404 overridden

From
Linus Torvalds <torvalds@osdl.org>
Date
Mar 22, 2006, 04:13 UTC
Message-ID
<Pine.LNX.4.64.0603212011430.26286@g5.osdl.org>
In-Reply-To
<20060322031200.GB17954@spearce.org>
On Tue, 21 Mar 2006, Shawn Pearce wrote:
Show 5 quoted lines
>
> '0' x 40.  :-) There's some places already in the GIT source
> which would have ``issues'' if they got an object with this hash.
> Not sure if it is actually an entirely impossible hash or just one
> that is highly improbable.

The all-zeroes hash is as improbable as any other one, and finding a "collision" (ie a "real object") with that hash is as improbable as any other collision, ie we can (and do) depend on it beign a unique identifier for "does not exist".

			Linus
Previous: Shawn PearceNext: Marco Costalba
Message 3 of 18 in “Re: Cloning from sites with 404 overridden”
  1. linux@horizon.comMar 22, 2006
  2. Shawn PearceMar 22, 2006
  3. Linus TorvaldsMar 22, 2006
  4. Marco CostalbaMar 22, 2006
  5. Junio C HamanoMar 22, 2006
  6. Andreas EricssonMar 22, 2006
  7. Mark WoodingMar 24, 2006
  8. Junio C HamanoMar 24, 2006
  9. Linus TorvaldsMar 24, 2006
  10. Morten WelinderMar 24, 2006
  11. Andreas EricssonMar 24, 2006
  12. Nick HengeveldMar 22, 2006
  13. Nick HengeveldMar 22, 2006
  14. Junio C HamanoMar 22, 2006
  15. Junio C HamanoMar 22, 2006
  16. Nick HengeveldMar 23, 2006
  17. Junio C HamanoMar 23, 2006
  18. Radoslaw SzkodzinskiMar 22, 2006

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