Re: "success"

How often is the first 28 bits of cypher text correctly matched?
--
MK

Dan Oetting wrote:
> On Oct 18, 2006, at 5:26 PM, Jim C. Nasby wrote:
>
>   
>> Well, one of those rules that would have to change is stats, since
>> that's a prime motivator for people to cheat. I don't see that  
>> working,
>> though.
>>     
>
> This is trivial to solve. All you have to do is change what you count  
> for a completed block of work. Currently you count the claim that a  
> client completed a particular work unit of 2^28 keys. If you simply  
> change the stats counter to finding a key that correctly generates  
> the first 28 bits of the cypher text, the work can be easily verified  
> so there will be no chance to cheat by short circuiting the work  
> (changing to 32 bits and counting each as 4 blocks would simplify the  
> client). You also get a free verification that the client is finding  
> and reporting cypher text matches which is something that is missing  
> in the current clients.
>
> -- Dan Oetting
>
>
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