Module: AspisInit

Defined in:
lib/aspis/aspis_init.rb

Class Method Summary collapse

Class Method Details

.init ⇒ Object 



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# File 'lib/aspis/aspis_init.rb', line 24

def self.init
  options = {}
  OptionParser.new do |opts|
    opts.banner = "Encryption filter utility.\n"

    opts.version = Aspis::VERSION

    opts.on('-e', '--encrypt', 'Encrypt') do
      options[:mode] = 'encrypt'
    end

    opts.on('-d', '--decrypt', 'Decrypt') do
      options[:mode] = 'decrypt'
    end

    opts.on('-g', '--generate', 'Generate key pair') do
      options[:mode] = 'generate'
    end

    opts.on('-n', '--nopass', 'Use env variable ASPIS_PASS for passphrase') do
      options[:ask_pass] = false
    end

    opts.on('-p', '--pubkey public_key', String, "Recipient's public key") do |p|
      options[:public_key] = p
    end

    opts.on('-k', '--privatekey private_key', String, "Sender's private key") do |k|
      options[:private_key] = k
    end

    opts.on('-o', '--opslimit opslimit', Integer, 'Argon2i ops parameter') do |o|
      options[:opslimit] = o
    end

    opts.on('-m', '--memlimit memlimit', Integer, 'Argon2i memory in MiB') do |m|
      options[:memlimit] = m
    end

    opts.on('-h', '--help', 'Displays help') do
      puts opts
      exit
    end
  end.parse!

  abort('Fatal error: must enter -g, -e, or -d') unless options[:mode]

  run(options)
end

.run(options) ⇒ Object 



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# File 'lib/aspis/aspis_init.rb', line 74

def self.run(options)
  if options[:public_key]
    unless options[:private_key]
      aspis_dir = File.expand_path('~/.aspis')
      options[:private_key] = aspis_dir + '/private_key'
    end
  end

  case options[:mode]
  when 'encrypt'
    if options[:public_key]
      puts Asymmetric.encrypt(ARGF.read, options[:public_key], options[:private_key], options[:ask_pass])
    else
      puts Symmetric.encrypt(ARGF.read, options[:opslimit], options[:memlimit], options[:ask_pass])
    end
  when 'decrypt'
    if options[:public_key]
      puts Asymmetric.decrypt(ARGF.read, options[:public_key], options[:private_key], options[:ask_pass])
    else
      puts Symmetric.decrypt(ARGF.read, options[:ask_pass])
    end
  when 'generate'
    GenerateKeys.generate(options[:opslimit], options[:memlimit], options[:ask_pass])
  end
end