ASN1_STRING * X509_NAME_ENTRY_get_data(X509_NAME_ENTRY *ne);
int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, ASN1_OBJECT *obj);
-int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type, unsigned char *bytes, int len);
+int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type, const unsigned char *bytes, int len);
-X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne, char *field, int type, unsigned char *bytes, int len);
+X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne, const char *field, int type, const unsigned char *bytes, int len);
X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid, int type,unsigned char *bytes, int len);
-X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne, ASN1_OBJECT *obj, int type,unsigned char *bytes, int len);
+X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne, ASN1_OBJECT *obj, int type, const unsigned char *bytes, int len);
=head1 DESCRIPTION