ruby-otp/README at master · dougsko/ruby-otp · GitHub

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= ruby-otp

by dougsko
* http://github.com/dougsko/ruby-otp

original program by Guillaume Pierronnet
* http://ruby-otp.rubyforge.org
* http://rubyforge.org/projects/ruby-otp/

== DESCRIPTION:

ruby-otp is a One Time Password library, compatible with OPIE and S/KEY, and RFC 1760 compliant.
This fork supports SHA1 and several SHA2 hashing algorithms.

== FEATURES/PROBLEMS:

* pure ruby
* RFC 1760 compliant
* OPIE and S/KEY compatible
* Mostly RFC 2289 compliant

== SYNOPSIS:

  seq_num = 497
  seed = "aa3423"
  otp = OTP.new(seq_num, seed, "my really private password", "md5")
  expected_sentence = otp.to_s.downcase

  puts "please enter the sentence from your OTP calculator seq_num: #{seq_num}, seed: #{seed}"
  sentence = gets.chop

  if expected_sentence == sentence.downcase
    puts "access granted"
  else
    puts "you're not authorized"
  end

== REQUIREMENTS:

* openssl for OpenSSL::Digest::MD4

== INSTALL:

* sudo gem install ruby-otp

== LICENSE:

GPL