Fake-ish Legend of Zelda password generator

loz_password_generator.rb

#!/usr/bin/env ruby

# 675 bits of real data + an 8 bit shift instruction to help encrypt the passsword
length = 675 + 8
# the same character set as kid icarus
chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz?!"
result = ""
loop do
  # i just need something that looks good for the video
  bits = length.times.each_with_object([]) { |i, obj| obj << rand(2) }
  # the checksum is literally just adding all the bits together as far as I can tell. it's very simple.
  bits_with_checksum = bits + (bits.sum.to_s(2).reverse.split("").map(&:to_i))
  # run all this until i get a password with plenty of cool exclamation points (and slightly less cool question marks)
  result = bits_with_checksum.each_slice(6).each_with_object("") { |bits, out| out << chars[bits.join.reverse.to_i(2)] }
  break if result.split('!').length > 3 && result.split('?').length > 3
end
puts result