x509extension.html

API資料大全

</TABLE>

<A NAME="hasUnsupportedCriticalExtension()"><!-- --></A><H3>
hasUnsupportedCriticalExtension</H3>
<PRE>
public boolean <B>hasUnsupportedCriticalExtension</B>()</PRE>
<DL>
<DD>Check if there is a critical extension that is not supported.<DD><DL>
<DT><B>Returns:</B><DD><tt>true</tt> if a critical extension is found that is
 not supported, otherwise <tt>false</tt>.</DL>
</DD>
</DL>
<HR>

<A NAME="getCriticalExtensionOIDs()"><!-- --></A><H3>
getCriticalExtensionOIDs</H3>
<PRE>
public <A HREF="../../../java/util/Set.html">Set</A> <B>getCriticalExtensionOIDs</B>()</PRE>
<DL>
<DD>Gets a Set of the OID strings for the extension(s) marked
 CRITICAL in the certificate/CRL managed by the object
 implementing this interface.

 Here is sample code to get a Set of critical extensions from an
 X509Certificate and print the OIDs:
 <pre><code>
 InputStream inStrm = new FileInputStream("DER-encoded-Cert");
 CertificateFactory cf = CertificateFactory.getInstance("X.509");
 X509Certificate cert = (X509Certificate)cf.generateCertificate(inStrm);
 inStrm.close();<p>

 Set critSet = cert.getCriticalExtensionOIDs();
 if (critSet != null && !critSet.isEmpty()) {
     System.out.println("Set of critical extensions:");
     for (Iterator i = critSet.iterator(); i.hasNext();) {
         String oid = (String)i.next();
         System.out.println(oid);
     }
 }
 </code></pre><DD><DL>
<DT><B>Returns:</B><DD>a Set (or an empty Set if none are marked critical) of
 the extension OID strings for extensions that are marked critical.
 If there are no extensions present at all, then this method returns
 null.</DL>
</DD>
</DL>
<HR>

<A NAME="getNonCriticalExtensionOIDs()"><!-- --></A><H3>
getNonCriticalExtensionOIDs</H3>
<PRE>
public <A HREF="../../../java/util/Set.html">Set</A> <B>getNonCriticalExtensionOIDs</B>()</PRE>
<DL>
<DD>Gets a Set of the OID strings for the extension(s) marked
 NON-CRITICAL in the certificate/CRL managed by the object
 implementing this interface.

 Here is sample code to get a Set of non-critical extensions from an
 X509CRL revoked certificate entry and print the OIDs:
 <pre><code>
 InputStream inStrm = new FileInputStream("DER-encoded-CRL");
 CertificateFactory cf = CertificateFactory.getInstance("X.509");
 X509CRL crl = (X509CRL)cf.generateCRL(inStrm);
 inStrm.close();<p>

 byte[] certData = &lt;DER-encoded certificate data&gt;
 ByteArrayInputStream bais = new ByteArrayInputStream(certData);
 X509Certificate cert = (X509Certificate)cf.generateCertificate(bais);
 bais.close();
 X509CRLEntry badCert =
              crl.getRevokedCertificate(cert.getSerialNumber());<p>

 if (badCert != null) {
     Set nonCritSet = badCert.getNonCriticalExtensionOIDs();<p>
     if (nonCritSet != null)
         for (Iterator i = nonCritSet.iterator(); i.hasNext();) {
             String oid = (String)i.next();
             System.out.println(oid);
         }
 }
 </code></pre><DD><DL>
<DT><B>Returns:</B><DD>a Set (or an empty Set if none are marked non-critical) of
 the extension OID strings for extensions that are marked non-critical.
 If there are no extensions present at all, then this method returns
 null.</DL>
</DD>
</DL>
<HR>

<A NAME="getExtensionValue(java.lang.String)"><!-- --></A><H3>
getExtensionValue</H3>
<PRE>
public byte[] <B>getExtensionValue</B>(<A HREF="../../../java/lang/String.html">String</A>&nbsp;oid)</PRE>
<DL>
<DD>Gets the DER-encoded OCTET string for the extension value
 (<em>extnValue</em>) identified by the passed-in <code>oid</code>
 String.
 The <code>oid</code> string is
 represented by a set of positive whole numbers separated
 by periods.

 <p>For example:<br>
 <table border=groove>
 <tr>
 <th>OID <em>(Object Identifier)</em></th>
 <th>Extension Name</th></tr>
 <tr><td>2.5.29.14</td>
 <td>SubjectKeyIdentifier</td></tr>
 <tr><td>2.5.29.15</td>
 <td>KeyUsage</td></tr>
 <tr><td>2.5.29.16</td>
 <td>PrivateKeyUsage</td></tr>
 <tr><td>2.5.29.17</td>
 <td>SubjectAlternativeName</td></tr>
 <tr><td>2.5.29.18</td>
 <td>IssuerAlternativeName</td></tr>
 <tr><td>2.5.29.19</td>
 <td>BasicConstraints</td></tr>
 <tr><td>2.5.29.30</td>
 <td>NameConstraints</td></tr>
 <tr><td>2.5.29.33</td>
 <td>PolicyMappings</td></tr>
 <tr><td>2.5.29.35</td>
 <td>AuthorityKeyIdentifier</td></tr>
 <tr><td>2.5.29.36</td>
 <td>PolicyConstraints</td></tr>
 </table><DD><DL>
<DT><B>Parameters:</B><DD><CODE>oid</CODE> - the Object Identifier value for the extension.<DT><B>Returns:</B><DD>the DER-encoded octet string of the extension value or
 null if it is not present.</DL>
</DD>
</DL>
<!-- ========= END OF CLASS DATA ========= -->
<HR>

<!-- ========== START OF NAVBAR ========== -->
<A NAME="navbar_bottom"><!-- --></A>
<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0">
<TR>
<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
<A NAME="navbar_bottom_firstrow"><!-- --></A>
<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3">
  <TR ALIGN="center" VALIGN="top">
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="class-use/X509Extension.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A>&nbsp;</TD>
  </TR>
</TABLE>
</TD>
<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
<b>Java<sup><font size=-2>TM</font></sup>&nbsp;2&nbsp;Platform<br>Std.&nbsp;Ed. v1.3</b></EM>
</TD>
</TR>

<TR>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
&nbsp;PREV CLASS&nbsp;
&nbsp;NEXT CLASS</FONT></TD>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
  <A HREF="../../../index.html" TARGET="_top"><B>FRAMES</B></A>  &nbsp;
&nbsp;<A HREF="X509Extension.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD>
</TR>
<TR>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
  SUMMARY: &nbsp;INNER&nbsp;|&nbsp;FIELD&nbsp;|&nbsp;CONSTR&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
DETAIL: &nbsp;FIELD&nbsp;|&nbsp;CONSTR&nbsp;|&nbsp;<A HREF="#method_detail">METHOD</A></FONT></TD>
</TR>
</TABLE>
<!-- =========== END OF NAVBAR =========== -->

<HR>
<font size="-1"><a href="http://java.sun.com/cgi-bin/bugreport.cgi">Submit a bug or feature</a><br>For further API reference and developer documentation, see <a href="http://java.sun.com/products/jdk/1.3/devdocs-vs-specs.html">Java 2 SDK SE Developer Documentation</a>. That documentation  contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. <p>Java, Java 2D, and JDBC are trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.<br>Copyright 1993-2000 Sun Microsystems, Inc. 901 San Antonio Road<br>Palo Alto, California, 94303, U.S.A.  All Rights Reserved.</font>
</BODY>
</HTML>