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pySim-read.py: Enable reading of EF.IMPI from ISIM

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IMS private user identity (IMPI)
As per TS1.103 version 14.2.0, this EF contains the private user identity of the user.
EF.IMPI consist of NAI TLV Data object.The NAI shall be encoded to an octet string
according to UTF-8 encoding rules as specified in IETF RFC 3629.

Reading of EF.IMPI is achieved by first selecting the ISIM application using its AID.
This is followed by selecting EF.IMPI with File ID - 6f02 in ADF.ISIM

Change-Id: I8d8e76e3f6b9ca7a0be262fee99cd5a397edbefa
This commit is contained in:
Supreeth Herle
2020-03-25 15:38:02 +01:00
committed by herlesupreeth
parent 28484d03e3
commit 3f67f9c1d3
3 changed files with 22 additions and 0 deletions
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10
pySim/cards.py
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@@ -375,6 +375,16 @@ class IsimCard(Card):
data, sw = self._scc.update_binary(EF_ISIM_ADF_map['DOMAIN'], rpad(content, bin_size_bytes*2))
return sw
def read_impi(self):
(res, sw) = self._scc.read_binary(EF_ISIM_ADF_map['IMPI'])
if sw == '9000':
# Skip the inital tag value ('80') byte and get length of contents
length = int(res[2:4], 16)
content = h2s(res[4:4+(length*2)])
return (content, sw)
else:
return (None, sw)
class _MagicSimBase(Card):
"""