Job Applicant screening – Unique idea

See how a new startup 'Square' has done this. Here is the link

To apply, please submit along with your resume a critique of the following code:



#!/usr/bin/env ruby

#

# This program encrypts and decrypts messages at the command line.

# It runs setuid root, so that it can be used by users without giving

# them access to the (root-owned) secret encryption key.



require 'openssl'



SECRET_KEY="/etc/secrypt.key"

OUTPUT_FILE="/tmp/secrypt.out"



cipher = OpenSSL::Cipher::Cipher.new('aes-256-ecb')



case ARGV.shift

when 'encrypt'

cipher.encrypt

when 'decrypt'

cipher.decrypt

else

puts "Usage:"

puts "$0 [encrypt
decrypt] "

exit 1

end



cipher.key=(File.read(SECRET_KEY))



input = File.open(ARGV.shift)

output = File.open(OUTPUT_FILE, "w")



input.each_line do
l


output.write(cipher << l)

end