This isn't actually correct, is it? Assuming an average 6-letter word length, there are about 10^67 valid combinations that your iterate_all() can go through: (((2^6) * 1000) ^ 12) * (94 ^ 5) = 3.5 * 10^67Since this is much larger than the total hash space (2^160 = 10^48), you can hope you'll get a collision after the number of tries equal to half of the hashspace (10^48 / 2). That means you'll have to generate 10^47 hashes. At 5 minutes of runtime, you'll have to generate 10^45 hashes per second.Bottom line: if you can run this on 200,000 cores, you'll have to generate 10^40 hashes per second per core, and that seems impossible to me.

 Weeell we have 20,023 computers (that fluctuates a tad). That's probably about 30,000 cores in the end.I cant iterate the whole lot - but I can cover a substantial portion more of the keyspace in 5 mins than most could in the 30hrs. I bet 5 minutes will easily get me damn close :)
 I'm seeing about 1 million hashes per second on a single core. So, you can do about 10^11 hashes per second on 30,000 cores. At that rate, it will only take you 10^48 years to cover the keyspace.You won't even cover a fraction of a percent of the keyspace before the sun burns out.

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