find bitcoin public address that starts with a given pattern

find_bitcoin_addres.rb

require 'bitcoin'

key = nil
addr = ""
iteration = 0
pattern = "Thomas"

until addr.start_with?("1#{pattern}")
  key = Bitcoin::Key.generate
  addr = key.addr
  iteration += 1
  print "."
  print "Mining for BitcoinKey starting with '#{pattern}' (iteration: #{iteration})\n" if iteration % 100 == 0
end

puts "FOUND A KEY!"
puts "address    : #{key.addr}"
puts "public_key : #{key.pub}"
puts "private_key: #{key.priv}"