ossl_x509_get_not_before  713 ext/openssl/ossl_x509cert.c 		      ossl_x509_get_not_before(self),
ossl_x509_get_not_before  842 ext/openssl/ossl_x509cert.c     rb_define_method(cX509Cert, "not_before", ossl_x509_get_not_before, 0);