docs/smpp-ota-tool: Add documentation/tutorial

We already have documentation that explains how to run pySim-smpp2sim.
With smpp-ota-tool we now have a counterpart for pySim-smpp2sim, so
let's add documentation for this tool as well.

Related: SYS#7881
Change-Id: If0d18a263f5a6dc035b90f5c5c6a942d46bbba49

pySim/cdma_ruim.py

@@ -128,7 +128,7 @@ class EF_AD(TransparentEF):
         cell_test = 0x04
 
     def __init__(self, fid='6f43', sfid=None, name='EF.AD',
-                 desc='Administrative Data', size=(3, None), **kwargs):
+                 desc='Service Provider Name', size=(3, None), **kwargs):
         super().__init__(fid, sfid=sfid, name=name, desc=desc, size=size, **kwargs)
         self._construct = Struct(
             # Byte 1: Display Condition

pySim/esim/saip/__init__.py

@@ -151,8 +151,6 @@ class File:
         self.df_name = None
         self.fill_pattern = None
         self.fill_pattern_repeat = False
-        self.pstdo = None # pinStatusTemplateDO, mandatory for DF/ADF
-        self.lcsi = None # optional life cycle status indicator
         # apply some defaults from profile
         if self.template:
             self.from_template(self.template)
@@ -280,8 +278,6 @@ class File:
         elif self.file_type in ['MF', 'DF', 'ADF']:
             fdb_dec['file_type'] = 'df'
             fdb_dec['structure'] = 'no_info_given'
-            # pinStatusTemplateDO is mandatory for DF/ADF
-            fileDescriptor['pinStatusTemplateDO'] = self.pstdo
         # build file descriptor based on above input data
         fd_dict = {}
         if len(fdb_dec):
@@ -308,8 +304,6 @@ class File:
             # desired fill or repeat pattern in the "proprietaryEFInfo" element for the EF in Profiles
             # downloaded to a V2.2 or earlier eUICC.
             fileDescriptor['proprietaryEFInfo'] = pefi
-        if self.lcsi:
-            fileDescriptor['lcsi'] = self.lcsi
         logger.debug("%s: to_fileDescriptor(%s)" % (self, fileDescriptor))
         return fileDescriptor
 
@@ -329,8 +323,6 @@ class File:
         if efFileSize:
             self._file_size = self._decode_file_size(efFileSize)
 
-        self.pstdo = fileDescriptor.get('pinStatusTemplateDO', None)
-        self.lcsi = fileDescriptor.get('lcsi', None)
         pefi = fileDescriptor.get('proprietaryEFInfo', {})
         securityAttributesReferenced = fileDescriptor.get('securityAttributesReferenced', None)
         if securityAttributesReferenced:

pySim/global_platform/scp.py

@@ -266,13 +266,11 @@ class SCP02(SCP):
         super().__init__(*args, **kwargs)
 
     def dek_encrypt(self, plaintext:bytes) -> bytes:
-        # See also GPC section B.1.1.2, E.4.7, and E.4.1
+        cipher = DES.new(self.card_keys.dek[:8], DES.MODE_ECB)
-        cipher = DES3.new(self.sk.data_enc, DES.MODE_ECB)
         return cipher.encrypt(plaintext)
 
     def dek_decrypt(self, ciphertext:bytes) -> bytes:
-        # See also GPC section B.1.1.2, E.4.7, and E.4.1
+        cipher = DES.new(self.card_keys.dek[:8], DES.MODE_ECB)
-        cipher = DES3.new(self.sk.data_enc, DES.MODE_ECB)
         return cipher.decrypt(ciphertext)
 
     def _compute_cryptograms(self, card_challenge: bytes, host_challenge: bytes):