updates

README.md

@@ -1,21 +1,44 @@
-## File header
+# Cuper
+## RIZ file header
 ```plain
-                     32 bits
-<---------------------------------------------->
-+----------------------------------------------+
-|
------------------------------------------------+
-|
------------------------------------------------+
-|
------------------------------------------------+
-|
------------------------------------------------+
+                         32 bits
+    <---------------------------------------------->
+              16 bits
+    <---------------------->
+    +----------------------------------------------+
+  0 |                IDENTIFICATOR                 |
+    +----------------------------------------------+
+  1 |          ARCH        |          OS           |
+    +----------------------------------------------+
+  2 |                     TIME                     |
+    +----------------------------------------------+
+  3 |          TYPE        |    PROT.  |    VER    |
+    +----------------------------------------------+
+  4 |           HL         |          MDL          |
+    +----------------------------------------------+
+5-9 |                  RESERVED                    |
+    +----------------------------------------------+
+    |                   OPTIONS                    |
+    +----------------------------------------------+
+    |                  METADATA                    |
+    +----------------------------------------------+
+    |                   PAYLOAD                    |
+    +----------------------------------------------+
 ```
 
-| Nom du champ | Indice | Valeur |
-|:------------:|:------:|:-------|
-| Identification ||
+| Nom du champ | Position | Longeur (bits) | Valeur(s) |
+|:------------:|:------:|:--------------:|:---------:|
+| Identificator | 0 | 32 | `0x7f 0x52 0x49 0x5a` |
+| Arch | 4 | 16 | `0x0` = no arch |
+|||| `0x01` = i386 |
+|||| `0x02` = x86_64 |
+| OS | 6 | 16 | `0x0` = no OS |
+|||| `0x01` = linux |
+| Time | 8 | 32 | *current timestamp* |
+| Type | 12 | 16 | `0x0` = container |
+|||| `0x1` = meta container |
+| Protected | 14 | 8 | `0x0` = unprotected |
+|||| `0x1` = aes |
 
 * Magic number (32 bits: `0x7f` `0x52` `0x49` `0x5a`), la signature du fichier: DELRIZ.
 * arch (16 bits), l'identifiant de la machine cible (architecture du processeur).