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ts_31_102.py: switch EF.Keys from imperative to declarative codec 

Change-Id: I215a61c1e44ee2c5df70a8ca96344b4dd4d93c00
This commit is contained in:
Harald Welte 2021-04-10 19:08:25 +02:00
parent 2db5cfb525
commit 9853e247a2
1 changed files with 3 additions and 6 deletions
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pySim/ts_31_102.py
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@ -269,6 +269,8 @@ EF_USIM_ADF_map = {
######################################################################
from struct import unpack, pack
from construct import *
from pySim.construct import HexAdapter
from pySim.filesystem import *
from pySim.ts_51_011 import EF_IMSI, EF_xPLMNwAcT, EF_SPN, EF_CBMI, EF_ACC, EF_PLMNsel, EF_AD
from pySim.ts_51_011 import EF_CBMID, EF_CBMIR
@ -416,12 +418,7 @@ class EF_Keys(TransparentEF):
def __init__(self, fid='6f08', sfid=0x08, name='EF.Keys', size={33,33},
desc='Ciphering and Integrity Keys'):
super().__init__(fid, sfid=sfid, name=name, desc=desc, size=size)
def _decode_bin(self, in_bin):
return {'ksi': in_bin[0],
'ck': b2h(in_bin[1:17]),
'ik': b2h(in_bin[17:33])}
def _encode_bin(self, in_json):
return h2b(in_json['ksi']) + h2b(in_json['ck']) + h2b(in_json['ik'])
self._construct = Struct('ksi'/Int8ub, 'ck'/HexAdapter(Bytes(16)), 'ik'/HexAdapter(Bytes(16)))
# TS 31.103 Section 4.2.7
class EF_UST(TransparentEF):