I recently forked your Cyclone and added a couple of tweaks Now with -bit and -subzeros for Fine-Grained Private Key Range Control.

-bit – lets you select the bit length for the random private key range (e.g. -bit 71)
-subzeros – lets you define how many trailing hex characters (zeroes) the range should have.


This will generate a key range like:




You can adjust the number of zeroes based on your CPU thread count and brute-force capability.

I’m planning to build or buy a more powerful CPU setup (under $2k), and I’d love some suggestions from the community on CPUs with strong multi-core performance suitable for this kind of workload.

Any recommendations are appreciated!

I recently forked your Cyclone and added a couple of tweaks Now with -bit and -subzeros for Fine-Grained Private Key Range Control.

-bit – lets you select the bit length for the random private key range (e.g. -bit 71)
-subzeros – lets you define how many trailing hex characters (zeroes) the range should have.


This will generate a key range like:




You can adjust the number of zeroes based on your CPU thread count and brute-force capability.

I’m planning to build or buy a more powerful CPU setup (under $2k), and I’d love some suggestions from the community on CPUs with strong multi-core performance suitable for this kind of workload.

Any recommendations are appreciated!