Answer a security question!

gistfile1.rb

require 'openssl'
require 'base64'

unless ARGV[0] && ARGV[1]
  $stderr.puts 'you need to provide the question as the first argument'
  $stderr.puts 'you need to provide the password as the second argument'
  $stderr.puts 'usage: ./md5question.rb <question> <password> [ base64 | hex ]'
  exit -1
end

MODE = ARGV[2] || 'base64'
hasher = OpenSSL::Digest::MD5.new

# calculate security question: md5(concat(security q as string, password))
puts case MODE
     when 'base64'
       Base64.encode64(hasher.digest(ARGV[0] + ARGV[1]))
     when 'hex'
       hasher.hexdigest(ARGV[0] + ARGV[1])
     end

__END__