On Wed, Mar 26, 2014 at 7:36 AM, Baruch Burstein <[email protected]>wrote:
> Out of curiosity, in the tcl repository I found 2 8-long collisions. I > don't have anything bigger to test. This is what I used: > > select substr(uuid, 1, 8) a, count(*) b from blob group by a having b>1 > order by b; > > I was only counting check-in artifacts, which comprise only 1 out of 8 artifacts in the repository. The TCL repository currently holds 135671 artifacts for 16.00 years of operation. So we would expect a 10-character collision (with 50% probability) in about the years 2100. This is sooner than the "hundreds of years" I said earlier, but still a ways off. -- D. Richard Hipp [email protected]
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