class GPGME::Key

def to_s
  primary_subkey = subkeys[0]
  s = sprintf("%s   %4d%s/%s %s\n",
              primary_subkey.secret? ? 'sec' : 'pub',
              primary_subkey.length,
              primary_subkey.pubkey_algo_letter,
              primary_subkey.fingerprint[-8 .. -1],
              primary_subkey.timestamp.strftime('%Y-%m-%d'))
  uids.each do |user_id|
    s << "uid\t\t#{user_id.name} <#{user_id.email}>\n"
  end
  subkeys.each do |subkey|
    s << subkey.to_s
  end
  s
end