You're entirely sure that there could never be two different blocks that can 
hash to the same value and have different content?

Wow, can you just send me the cash now and we'll call it even?


On Jul 11, 2012, at 9:59 AM, Sašo Kiselkov wrote:

> On 07/11/2012 04:56 PM, Gregg Wonderly wrote:
>> So, if I had a block collision on my ZFS pool that used dedup, and it had my 
>> bank balance of $3,212.20 on it, and you tried to write your bank balance of 
>> $3,292,218.84 and got the same hash, no verify, and thus you got my 
>> block/balance and now your bank balance was reduced by 3 orders of 
>> magnitude, would you be okay with that?  What assurances would you be 
>> content with using my ZFS pool?
> I'd feel entirely safe. There, I said it.
> --
> Saso

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