57 lines
2.7 KiB
HTML
Executable File
57 lines
2.7 KiB
HTML
Executable File
<?xml version="1.0" ?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>X509_check_issued</title>
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<meta http-equiv="content-type" content="text/html; charset=utf-8" />
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<link rev="made" href="mailto:" />
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</head>
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<body>
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<ul id="index">
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<li><a href="#NAME">NAME</a></li>
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<li><a href="#SYNOPSIS">SYNOPSIS</a></li>
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<li><a href="#DESCRIPTION">DESCRIPTION</a></li>
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<li><a href="#RETURN-VALUES">RETURN VALUES</a></li>
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<li><a href="#SEE-ALSO">SEE ALSO</a></li>
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<li><a href="#COPYRIGHT">COPYRIGHT</a></li>
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</ul>
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<h1 id="NAME">NAME</h1>
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<p>X509_check_issued - checks if certificate is apparently issued by another certificate</p>
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<h1 id="SYNOPSIS">SYNOPSIS</h1>
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<pre><code> #include <openssl/x509v3.h>
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int X509_check_issued(X509 *issuer, X509 *subject);</code></pre>
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<h1 id="DESCRIPTION">DESCRIPTION</h1>
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<p>X509_check_issued() checks if certificate <i>subject</i> was apparently issued using (CA) certificate <i>issuer</i>. This function takes into account not only matching of the issuer field of <i>subject</i> with the subject field of <i>issuer</i>, but also compares all sub-fields of the <b>authorityKeyIdentifier</b> extension of <i>subject</i>, as far as present, with the respective <b>subjectKeyIdentifier</b>, serial number, and issuer fields of <i>issuer</i>, as far as present. It also checks if the <b>keyUsage</b> field (if present) of <i>issuer</i> allows certificate signing. It does not actually check the certificate signature. An error is returned if the <i>issuer</i> or the <i>subject</i> are incomplete certificates.</p>
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<h1 id="RETURN-VALUES">RETURN VALUES</h1>
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<p>X509_check_issued() returns <b>X509_V_OK</b> if all checks are successful or some <b>X509_V_ERR*</b> constant to indicate an error.</p>
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<h1 id="SEE-ALSO">SEE ALSO</h1>
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<p><a href="../man3/X509_verify_cert.html">X509_verify_cert(3)</a>, <a href="../man3/X509_verify.html">X509_verify(3)</a>, <a href="../man3/X509_check_ca.html">X509_check_ca(3)</a>, <a href="../man1/openssl-verify.html">openssl-verify(1)</a>, <a href="../man3/X509_self_signed.html">X509_self_signed(3)</a></p>
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<h1 id="COPYRIGHT">COPYRIGHT</h1>
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<p>Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.</p>
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<p>Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <a href="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</a>.</p>
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</body>
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</html>
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