-ASN1_TIME * X509_get_notBefore(const X509 *x);
-int X509_set_notBefore(X509 *x, const ASN1_TIME *tm);
-ASN1_TIME *X509_get_notAfter(const X509 *x);
-int X509_set_notAfter(X509 *x, const ASN1_TIME *tm);
+const ASN1_TIME * X509_get0_notBefore(const X509 *x);
+ASN1_TIME *X509_getm_notBefore(const X509 *x);
+int X509_set1_notBefore(X509 *x, const ASN1_TIME *tm);
+const ASN1_TIME *X509_get0_notAfter(const X509 *x);
+ASN1_TIME *X509_getm_notAfter(const X509 *x);
+int X509_set1_notAfter(X509 *x, const ASN1_TIME *tm);