 class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><p>
    They use user key directly as cipher key.
    </p></li><li class="listitem"><p>
    They don't provide any integrity checking, to see
    if the encrypted data was modified.
    </p></li><li class="listitem"><p>
    They expect that users manage all encryption parameters
    themselves, even IV.
    </p></li><li class="listitem"><p>
    They don't handle text.
    </p></li></ol></div><p>
   So, with the introduction of PGP en