require 'base64'
require 'openssl'

bs = 192
key_len = bs / 8
iv_len = 16

plain = "ilovethisgameZz"

if ARGV.size == 2
  key = ARGV[0].split(' ').map { |i| Integer(i, 16) }.pack('C*')
  iv = ARGV[1].split(' ').map { |i| Integer(i, 16) }.pack('C*')
else
  key = key_len.times.map { rand(256) }.pack('C*')
  iv = iv_len.times.map { rand(256) }.pack('C*')
end

cipher = OpenSSL::Cipher::AES.new(bs, :CBC)
cipher.encrypt
# key = cipher.random_key
# iv = cipher.random_iv
cipher.key = key
cipher.iv = iv

encrypted = cipher.update(plain) + cipher.final
puts key.unpack('C*').map { |i| "%x" % i }.join(' ')
puts iv.unpack('C*').map { |i| "%x" % i }.join(' ')
puts Base64.encode64(encrypted)