find_satoshi.rb

# Credit where credit is due / Preamble
#
# This borrows (steals?) heavily from https://bhelx.simst.im/articles/generating-bitcoin-keys-from-scratch-with-ruby/
#
# The bits and bobs that make this work come from that wonderful post, and from the bitcoin-ruby library by lian
# That library is located here https://github.com/lian/bitcoin-ruby
#
# If you find satoshi's treasure, or anyone else's with these scripts (and good luck, if I were to estimate the chances of that being 1 in 
#   10 zillion, the true chance would be super-much-more miniscule by many orders of magnitude than that. So your chances are ... smoll,)
# then be responsible/kind/just/based.
#
# These scripts are not-any-at-all-optimised, not guaranteed, and are here for fun. They were inspired by https://keys.lol and other things like that.
#
# Don't be lazy, don't be crazy, vote Kenny Powers.
begin
  require 'petname'
  petname = PetName::Generator.new.generate
  `curl -H "Content-Type: application/json" -d '{"username": "crackshmackin", "content": "#{petname}: Searching for Satoshi"}' #{ENV["CRACKSHMACKIN_DISCORD_HOOK"]}` unless (ENV["CRACKSHMACKIN_DISCORD_HOOK"].empty?)
  require 'bitcoin'
  require 'securerandom'
  require 'digest'

  def generate_key
    SecureRandom.hex(32)
  end

  # SHA-256 hash
  def sha256(hex)
    Digest::SHA256.hexdigest([hex].pack("H*"))
  end

  # checksum is first 4 bytes of sha256-sha256 hexdigest.
  def checksum(hex)
    sha256(sha256(hex))[0...8]
  end

  def int_to_base58(int_val, leading_zero_bytes = 0)
    alpha = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
    base58_val, base = '', alpha.size
    while int_val > 0
      int_val, remainder = int_val.divmod(base)
      base58_val = alpha[remainder] + base58_val
    end
    base58_val
  end

  def encode_base58(hex)
    leading_zero_bytes = (hex.match(/^([0]+)/) ? $1 : '').size / 2
    ("1" * leading_zero_bytes) + int_to_base58(hex.to_i(16))
  end

  PRIV_KEY_VERSION = '80'

  def wif(hex)
    data = PRIV_KEY_VERSION + hex
    encode_base58(data + checksum(data))
  end

  current_wif = '5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreAnchuDf'
  current_address = Bitcoin::Key.from_base58(current_wif).addr
  addresses_checked = 0
  # satoshi address with ~64BTC '1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa'
  i_talked = false
  i_mentioned_the_file_size_limit_was_reached = false
  until current_address == '1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa' do
    # virtually infinite loop intentionally
    if File.size('/crackshmackin/data/f.addresses') > ENV["MAX_BYTES_F_ADDRESSES"].to_i
      unless i_mentioned_the_file_size_limit_was_reached
        `curl -H "Content-Type: application/json" -d '{"username": "crackshmackin", "content": "#{petname}: f.addresses file size limit of #{(ENV["MAX_BYTES_F_ADDRESSES"].to_f / 1000000).to_i}MB reached."}' #{ENV["CRACKSHMACKIN_DISCORD_HOOK"]}` unless (ENV["CRACKSHMACKIN_DISCORD_HOOK"].empty?)
        puts("f.addresses file size limit of #{(ENV["MAX_BYTES_F_ADDRESSES"].to_f / 1000000).to_i}MB reached.")
        i_mentioned_the_file_size_limit_was_reached = true
      end
    else
      File.open('/crackshmackin/data/f.addresses', 'a') do |f|
        f.puts("WIF: #{current_wif} | Address: #{current_address}")
      end
      current_wif = wif(generate_key)
      current_address = Bitcoin::Key.from_base58(current_wif).addr
      if (ENV["VERBOSE_DISCORD_NOTIFICATIONS"] == "true") && ((Time.now.min % 5) == 0)
       unless i_talked
         accounts_with_satoshis = File.readlines('/crackshmackin/data/fyeah.bux').length rescue accounts_with_satoshis = 0
         empty_accounts = File.readlines('/crackshmackin/data/shucks.sux').length rescue empty_accounts = 0
         `curl -H "Content-Type: application/json" -d '{"username": "crackshmackin", "content": "#{petname}: crackshmackin has found #{addresses_checked} pairs of public and private keys and has found #{accounts_with_satoshis} accounts with satoshis. It has checked the balances of #{empty_accounts} empty accounts."}' #{ENV["CRACKSHMACKIN_DISCORD_HOOK"]}` unless (ENV["CRACKSHMACKIN_DISCORD_HOOK"].empty?)
         if accounts_with_satoshis > 0
           `curl -H "Content-Type: application/json" -d '{"username": "crackshmackin", "content": "#{petname}: These are the accounts I have found with balances:\n#{File.readlines('/crackshmackin/data/fyeah.bux').join($/)}"}' #{ENV["CRACKSHMACKIN_DISCORD_HOOK"]}` unless (ENV["CRACKSHMACKIN_DISCORD_HOOK"].empty?)
         end
         i_talked = true
       end
      else
        i_talked = false
      end
      addresses_checked += 1
    end
  end
  if current_address == '1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa'
    File.open('/crackshmackin/data/final.destination', 'a') do |f|
      `curl -H "Content-Type: application/json" -d '{"username": "crackshmackin", "content": "#{petname}: You found Satoshi's private key (WIF) #{current_wif} for the address #{current_address}."}' #{ENV["CRACKSHMACKIN_DISCORD_HOOK"]}` unless (ENV["CRACKSHMACKIN_DISCORD_HOOK"].empty?)
      f.puts("WIF: #{current_wif} | Address: #{current_address}")
    end
  end
ensure
  `curl -H "Content-Type: application/json" -d '{"username": "crackshmackin", "content": "#{petname}: #{File.basename(__FILE__)}: crackshmackin shutting down"}' #{ENV["CRACKSHMACKIN_DISCORD_HOOK"]}` unless (ENV["CRACKSHMACKIN_DISCORD_HOOK"].empty?)
end