Manual Reference Pages - X509_CHECK_CA (3)
X509_check_ca - check if given certificate is CA certificate
int X509_check_ca(X509 *cert);
This function checks if given certificate is CA certificate (can be used
to sign other certificates).
Function return 0, if it is not CA certificate, 1 if it is proper X509v3
CA certificate with basicConstraints extension CA:TRUE,
3, if it is selfsigned X509 v1 certificate, 4, if it is certificate with
keyUsage extension with bit keyCertSign set, but without
basicConstraints, and 5 if it has outdated Netscape Certificate Type
extension telling that it is CA certificate.
Actually, any non-zero value means that this certificate could have been
used to sign other certificates.
|1.1.0-pre3 ||X509_CHECK_CA (3) ||2016-02-15 |
Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.