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Command: X509_check_issued | Section: 3 | Source: OpenBSD | File: X509_check_issued.3
X509_CHECK_ISSUED(3) FreeBSD Library Functions Manual X509_CHECK_ISSUED(3)
NAME
X509_check_issued - check whether a certificate was issued using a given
CA certificate
SYNOPSIS
#include <openssl/x509v3.h>
int
X509_check_issued(X509 *issuer, X509 *subject);
DESCRIPTION
This function checks whether the certificate subject was issued using the
CA certificate issuer. It does the following checks:
o match the issuer field of subject against the subject field of issuer
o if authorityKeyIdentifier is present in the subject certificate,
compare it to the subjectKeyIdentifier of issuer
o check the keyUsage field of issuer.
RETURN VALUES
This function returns X509_V_OK if the certificate subject is issued by
issuer, or some X509_V_ERR* constant to indicate an error.
SEE ALSO
X509_check_ca(3), X509_new(3), X509_verify_cert(3)
HISTORY
X509_check_issued() first appeared in OpenSSL 0.9.6 and has been
available since OpenBSD 2.9.
FreeBSD 14.1-RELEASE-p8 June 6, 2019 FreeBSD 14.1-RELEASE-p8