build_key

# File lib/rubygems/commands/cert_command.rb, line 164
  def build_key # :nodoc:
    return options[:key] if options[:key]

    passphrase = ask_for_password 'Passphrase for your Private Key:'
    say "\n"

    passphrase_confirmation = ask_for_password 'Please repeat the passphrase for your Private Key:'
    say "\n"

    raise Gem::CommandLineError,
          "Passphrase and passphrase confirmation don't match" unless passphrase == passphrase_confirmation

    key      = Gem::Security.create_key
    key_path = Gem::Security.write key, "gem-private_key.pem", 0600, passphrase

    return key, key_path
  end