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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <title>3.1.1 X509 objects </title> <META NAME="description" CONTENT="3.1.1 X509 objects "> <META NAME="keywords" CONTENT="pyOpenSSL"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <link rel="STYLESHEET" href="pyOpenSSL.css"> <LINK REL="next" href="openssl-x509name.html"> <LINK REL="previous" href="openssl-crypto.html"> <LINK REL="up" href="openssl-crypto.html"> <LINK REL="next" href="openssl-x509name.html"> </head> <body> <DIV CLASS="navigation"> <table align="center" width="100%" cellpadding="0" cellspacing="2"> <tr> <td><A href="openssl-crypto.html"><img src="previous.gif" border="0" height="32" alt="Previous Page" width="32"></A></td> <td><A href="openssl-crypto.html"><img src="up.gif" border="0" height="32" alt="Up One Level" width="32"></A></td> <td><A href="openssl-x509name.html"><img src="next.gif" border="0" height="32" alt="Next Page" width="32"></A></td> <td align="center" width="100%">Python OpenSSL Manual</td> <td><A href="contents.html"><img src="contents.gif" border="0" height="32" alt="Contents" width="32"></A></td> <td><img src="blank.gif" border="0" height="32" alt="" width="32"></td> <td><img src="blank.gif" border="0" height="32" alt="" width="32"></td> </tr></table> <b class="navlabel">Previous:</b> <a class="sectref" href="openssl-crypto.html">3.1 crypto </A> <b class="navlabel">Up:</b> <a class="sectref" href="openssl-crypto.html">3.1 crypto </A> <b class="navlabel">Next:</b> <a class="sectref" href="openssl-x509name.html">3.1.2 X509Name objects</A> <br><hr> </DIV> <!--End of Navigation Panel--> <H3><A NAME="SECTION000411000000000000000"> </A> <BR> 3.1.1 X509 objects </H3> <P> X509 objects have the following methods: <P> <dl><dt><b><a name='l2h-34'><tt class='method'>get_issuer</tt></a></b>() <dd> Return an X509Name object representing the issuer of the certificate. </dl> <P> <dl><dt><b><a name='l2h-35'><tt class='method'>get_pubkey</tt></a></b>() <dd> Return a PKey object representing the public key of the certificate. </dl> <P> <dl><dt><b><a name='l2h-36'><tt class='method'>get_serial_number</tt></a></b>() <dd> Return the certificate serial number. </dl> <P> <dl><dt><b><a name='l2h-37'><tt class='method'>get_subject</tt></a></b>() <dd> Return an X509Name object representing the subject of the certificate. </dl> <P> <dl><dt><b><a name='l2h-38'><tt class='method'>get_version</tt></a></b>() <dd> Return the certificate version. </dl> <P> <dl><dt><b><a name='l2h-39'><tt class='method'>get_notBefore</tt></a></b>() <dd> Return a string giving the time before which the certificate is not valid. The string is formatted as an ASN1 GENERALIZEDTIME: <dl><dd><pre class="verbatim"> YYYYMMDDhhmmssZ YYYYMMDDhhmmss+hhmm YYYYMMDDhhmmss-hhmm </pre></dl> If no value exists for this field, <code>None</code> is returned. </dl> <P> <dl><dt><b><a name='l2h-40'><tt class='method'>get_notAfter</tt></a></b>() <dd> Return a string giving the time after which the certificate is not valid. The string is formatted as an ASN1 GENERALIZEDTIME: <dl><dd><pre class="verbatim"> YYYYMMDDhhmmssZ YYYYMMDDhhmmss+hhmm YYYYMMDDhhmmss-hhmm </pre></dl> If no value exists for this field, <code>None</code> is returned. </dl> <P> <dl><dt><b><a name='l2h-41'><tt class='method'>set_notBefore</tt></a></b>(<var>when</var>) <dd> Change the time before which the certificate is not valid. <var>when</var> is a string formatted as an ASN1 GENERALIZEDTIME: <dl><dd><pre class="verbatim"> YYYYMMDDhhmmssZ YYYYMMDDhhmmss+hhmm YYYYMMDDhhmmss-hhmm </pre></dl> </dl> <P> <dl><dt><b><a name='l2h-42'><tt class='method'>set_notAfter</tt></a></b>(<var>when</var>) <dd> Change the time after which the certificate is not valid. <var>when</var> is a string formatted as an ASN1 GENERALIZEDTIME: <dl><dd><pre class="verbatim"> YYYYMMDDhhmmssZ YYYYMMDDhhmmss+hhmm YYYYMMDDhhmmss-hhmm </pre></dl> </dl> <P> <dl><dt><b><a name='l2h-43'><tt class='method'>gmtime_adj_notBefore</tt></a></b>(<var>time</var>) <dd> Adjust the timestamp (in GMT) when the certificate starts being valid. </dl> <P> <dl><dt><b><a name='l2h-44'><tt class='method'>gmtime_adj_notAfter</tt></a></b>(<var>time</var>) <dd> Adjust the timestamp (in GMT) when the certificate stops being valid. </dl> <P> <dl><dt><b><a name='l2h-45'><tt class='method'>has_expired</tt></a></b>() <dd> Checks the certificate's time stamp against current time. Returns true if the certificate has expired and false otherwise. </dl> <P> <dl><dt><b><a name='l2h-46'><tt class='method'>set_issuer</tt></a></b>(<var>issuer</var>) <dd> Set the issuer of the certificate to <var>issuer</var>. </dl> <P> <dl><dt><b><a name='l2h-47'><tt class='method'>set_pubkey</tt></a></b>(<var>pkey</var>) <dd> Set the public key of the certificate to <var>pkey</var>. </dl> <P> <dl><dt><b><a name='l2h-48'><tt class='method'>set_serial_number</tt></a></b>(<var>serialno</var>) <dd> Set the serial number of the certificate to <var>serialno</var>. </dl> <P> <dl><dt><b><a name='l2h-49'><tt class='method'>set_subject</tt></a></b>(<var>subject</var>) <dd> Set the subject of the certificate to <var>subject</var>. </dl> <P> <dl><dt><b><a name='l2h-50'><tt class='method'>set_version</tt></a></b>(<var>version</var>) <dd> Set the certificate version to <var>version</var>. </dl> <P> <dl><dt><b><a name='l2h-51'><tt class='method'>sign</tt></a></b>(<var>pkey, digest</var>) <dd> Sign the certificate, using the key <var>pkey</var> and the message digest algorithm identified by the string <var>digest</var>. </dl> <P> <dl><dt><b><a name='l2h-52'><tt class='method'>subject_name_hash</tt></a></b>() <dd> Return the hash of the certificate subject. </dl> <P> <dl><dt><b><a name='l2h-53'><tt class='method'>digest</tt></a></b>(<var>digest_name</var>) <dd> Return a digest of the certificate, using the <var>digest_name</var> method. <var>digest_name</var> must be a string describing a digest algorithm supported by OpenSSL (by EVP_get_digestbyname, specifically). For example, <tt class="constant">"md5"</tt> or <tt class="constant">"sha1"</tt>. </dl> <P> <dl><dt><b><a name='l2h-54'><tt class='method'>add_extensions</tt></a></b>(<var>extensions</var>) <dd> Add the extensions in the sequence <var>extensions</var> to the certificate. </dl> <P> <DIV CLASS="navigation"> <p><hr> <table align="center" width="100%" cellpadding="0" cellspacing="2"> <tr> <td><A href="openssl-crypto.html"><img src="previous.gif" border="0" height="32" alt="Previous Page" width="32"></A></td> <td><A href="openssl-crypto.html"><img src="up.gif" border="0" height="32" alt="Up One Level" width="32"></A></td> <td><A href="openssl-x509name.html"><img src="next.gif" border="0" height="32" alt="Next Page" width="32"></A></td> <td align="center" width="100%">Python OpenSSL Manual</td> <td><A href="contents.html"><img src="contents.gif" border="0" height="32" alt="Contents" width="32"></A></td> <td><img src="blank.gif" border="0" height="32" alt="" width="32"></td> <td><img src="blank.gif" border="0" height="32" alt="" width="32"></td> </tr></table> <b class="navlabel">Previous:</b> <a class="sectref" href="openssl-crypto.html">3.1 crypto </A> <b class="navlabel">Up:</b> <a class="sectref" href="openssl-crypto.html">3.1 crypto </A> <b class="navlabel">Next:</b> <a class="sectref" href="openssl-x509name.html">3.1.2 X509Name objects</A> <hr> <span class="release-info">Release 0.10.</span> </DIV> <!--End of Navigation Panel--> </BODY> </HTML>