kmf_compare_rdns
extern int kmf_compare_rdns(KMF_X509_NAME *, KMF_X509_NAME *);
#define KMF_CompareRDNs kmf_compare_rdns
if (kmf_compare_rdns(user_issuerDN, &ta_subjectDN) != 0)
(kmf_compare_rdns(&user_issuerDN, &user_subjectDN)) == 0) {
*match = (kmf_compare_rdns(&issuerDN, &certIssuerDN) == 0);
*match = (kmf_compare_rdns(&subjectDN, &certSubjectDN) == 0);
rv = kmf_compare_rdns(issuer, &dn);
rv = kmf_compare_rdns(subject, &dn);