Is BitCrack have option to generate & compare many random hex instead of multiply one hex to public keys. I see this method work the same in vanitygen but since its purpose to find vanity address & BitCrack is to find collision addresses so this would fit bitcrack more. In vanitygen you modify the rekey_max value to make it generate single new key after amount of public keys (10000000 by default). In bitcrack, where does this function work? I'd like to see if i could modify it