Mobile-nas-messages.md

@@ -44,18 +44,34 @@ Moreover, in case the [CryptoMobile](https://github.com/mitshell/CryptoMobile)
 library is installed and can be imported, the `EMMSecProtNASMessage` and `EMMServiceRequest` classes
 have methods dedicated to the LTE NAS cryptographic operations.
 
+For 5G NAS, three main modules are available:
+- [TS24501_FGMM](https://github.com/p1sec/pycrate/blob/master/pycrate_mobile/TS24501_FGMM.py):
+   for 5G Mobility Management
+- [TS24501_FGSM](https://github.com/p1sec/pycrate/blob/master/pycrate_mobile/TS24501_FGSM.py):
+   for 5G Session Management
+- [TS24501_UEPOL](https://github.com/p1sec/pycrate/blob/master/pycrate_mobile/TS24501_UEPOL.py):
+   for 5G UE Policy
+Those structures are corresponding to the descriptions from section 8 and annex D 
+of the 3GPP TS 24.501 specification. IEs defined in section 9 are available in the module
+[TS24501_IE](https://github.com/p1sec/pycrate/blob/master/pycrate_mobile/TS24501_IE.py).
+Moreover, in case the [CryptoMobile](https://github.com/mitshell/CryptoMobile) 
+library is installed and can be imported, the `FGMMSecProtNASMessage` class has methods 
+dedicated to the 5G NAS cryptographic operations.
+
 All classes representing NAS messages and information elements are deriving from few
 base classes defined in the 
 [TS24007](https://github.com/p1sec/pycrate/blob/master/pycrate_mobile/TS24007.py) 
 module, which implements some specific aspects of cellular layer 3 message structures 
 as defined in the TS 24.007 3GPP specification.
 
-Finally, two _top-level_ modules are enabling the import of most of those NAS messages'
+Finally, three _top-level_ modules are enabling the import of most of those NAS messages'
 structures and providing custom functions for decoding any cellular NAS messages:
 - [NASLTE](https://github.com/p1sec/pycrate/blob/master/pycrate_mobile/NASLTE.py):
    for LTE-only EMM and ESM NAS messages,
+- [NAS5G](https://github.com/p1sec/pycrate/blob/master/pycrate_mobile/NAS5G.py):
+   for 5G-only 5GMM, 5GSM and 5G UE Policy NAS messages,
 - [NAS](https://github.com/p1sec/pycrate/blob/master/pycrate_mobile/NAS.py):
-   for all 2G-3G and LTE NAS messages.
+   for all 2G-3G, LTE and 5G NAS messages.
 
 ## Decoding NAS messages
 In order to decode NAS messages, the simplest way is to used one of the two functions
@@ -541,10 +557,10 @@ all optional IEs that are set, will appear directly in the message encoding:
     >>> IEs['CKSN']= 4
     >>> IEs['LocUpdateType'] = {'Type': 1}
     >>> IEs['LAI'] = (u'20820', 0x4321)
-    >>> IEs['ID'] = {'type': 1, 'ident': '208209876543210'}
+    >>> IEs['ID'] = {'type': 1, 'ident': u'208209876543210'}
     >>> IEs['AddUpdateParams'] = {'CSMO': 1, 'CSMT': 1}
     >>> IEs
-    {'LocUpdateType': {'Type': 1}, 'ID': {'ident': '208209876543210', 'type': 1}, 'AddUpdateParams': {'CSMT': 1, 'CSMO': 1}, 'CKSN': 4, 'LAI': (u'20820', 17185)}
+    {'LocUpdateType': {'Type': 1}, 'ID': {'ident': u'208209876543210', 'type': 1}, 'AddUpdateParams': {'CSMT': 1, 'CSMO': 1}, 'CKSN': 4, 'LAI': (u'20820', 17185)}
     >>> Msg = MMLocationUpdatingRequest(val=IEs)
     >>> show(Msg)
     ### MMLocationUpdatingRequest ###