X509_CHECK_ISSUED
Section: OpenSSL (3)
Updated: 2020-07-28
Page Index
NAME
X509_check_issued - checks if certificate is issued by another certificate
SYNOPSIS
#include <openssl/x509v3.h>
int X509_check_issued(X509 *issuer, X509 *subject);
DESCRIPTION
This function checks if certificate
subject was issued using
CA
certificate
issuer. This function takes into account not only
matching of issuer field of
subject with subject field of
issuer,
but also compares
authorityKeyIdentifier extension of
subject with
subjectKeyIdentifier of
issuer if
authorityKeyIdentifier
present in the
subject certificate and checks
keyUsage field of
issuer.
RETURN VALUES
Function return
X509_V_OK if certificate
subject is issued by
issuer or some
X509_V_ERR* constant to indicate an error.
SEE ALSO
X509_verify_cert(3),
X509_check_ca(3),
verify(1)
COPYRIGHT
Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (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
<https://www.openssl.org/source/license.html>.