12_pack_p7encdata_ex() operates similar to the above but allows for a library context <i>ctx</i> and property query <i>propq</i> to be used to select the algorithm implementation.</p>

<h1 id="RETURN-VALUES">RETURN VALUES</h1>

<p>A <b>PKCS7</b> object if successful, or NULL if an error occurred.</p>

<h1 id="CONFORMING-TO">CONFORMING TO</h1>

<p>IETF RFC 2315 (<a href="https://tools.ietf.org/html/rfc2315">https://tools.ietf.org/html/rfc2315</a>)</p>

<h1 id="SEE-ALSO">SEE ALSO</h1>

<p><a href="../man3/PKC