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    <div class="moz-cite-prefix">On 20/05/2016 12:36, Renato Alves

      wrote:<br>

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    <blockquote

      cite="mid:pyjqi07ajnkbdkopm1kos8uv.1463744192722@email.android.com"

      type="cite"><span style="font-family: Arial; font-size:12pt">I

        don't know if gpg stores any kind of date as part of the

        metadata of the encrypted content but encrypting a timestamp

        seems like the only resiliant approach.<br>

      </span></blockquote>

    <p>You could simply sign the data when encrypting it: the signature

      includes a timestamp.<br>

    </p>

    <p><a href="https://www.gnupg.org/gph/en/manual/x135.html">https://www.gnupg.org/gph/en/manual/x135.html</a></p>

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