Files
pysim/tests/unittests/test_globalplatform.py
T
Eric Wild 26a3fc09dc GP: only send a GET STATUS tag list to cards that support it
get_status() has appended a hardcoded '5c054f9f70c5cc' to the command data
field. Of the data objects in GP CS v2.3.1 Table 11-35 only the AID
search tag 4F is mandatory, the tag list is optional and not supported
in v2.1.1, where Section 9.4.2.3 defines the data field as the search
qualifier. Cards implementing that revision can reject anything else
with 6A80 as per v2.1.1 Table 9-26.

A sysmocom SJA5 does that. Its data field must be one 4F
TLV, the value is free, but nothing may precede or follow it.
So every subset returned nothing at all...

There is no need to guess: v2.1.1/v2.3.1 Section 7.4.1.3 Card Recognition
Data is "shall be present" and contains the GP version on selected SD.
Query it once, and send the tag list to cards that announce v2.2 or later.
SJA5 reports 2.1.1, sysmoEUICC reports 2.2.

Two more problems with the old list:
- A tag list is an inclusion list, old list omits tag 84, so it
suppressed the Executable Module AIDs
- It asks for tag C5 for Executable Load Files, which "may" be answered
with an error status.

Fix this by constricting or omitting the tag list depending on reported
GP version.

Change-Id: I74cd2bd47617d616bede6453397f544cde5abcb7
2026-09-23 18:01:16 +02:00

877 lines
42 KiB
Python

#!/usr/bin/env python3
# (C) 2023-2024 by Harald Welte <laforge@osmocom.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import unittest
import logging
import hashlib
from types import SimpleNamespace
from osmocom.utils import b2h, h2b
from osmocom.tlv import bertlv_encode_len
from pySim.global_platform import *
from pySim.global_platform.scp import *
from pySim.global_platform.install_param import gen_install_parameters
KIC = h2b('100102030405060708090a0b0c0d0e0f') # enc
KID = h2b('101102030405060708090a0b0c0d0e0f') # MAC
KIK = h2b('102102030405060708090a0b0c0d0e0f') # DEK
ck_3des_70 = GpCardKeyset(0x20, KIC, KID, KIK)
class SCP02_Auth_Test(unittest.TestCase):
host_challenge = h2b('40A62C37FA6304F8')
init_update_resp = h2b('00000000000000000000700200016B4524ABEE7CF32EA3838BC148F3')
def setUp(self):
self.scp02 = SCP02(card_keys=ck_3des_70)
def test_mutual_auth_success(self):
init_upd_cmd = self.scp02.gen_init_update_apdu(host_challenge=self.host_challenge)
self.assertEqual(b2h(init_upd_cmd).upper(), '805020000840A62C37FA6304F800')
self.scp02.parse_init_update_resp(self.init_update_resp)
ext_auth_cmd = self.scp02.gen_ext_auth_apdu()
self.assertEqual(b2h(ext_auth_cmd).upper(), '8482010010BA6961667737C5BCEBECE14C7D6A4376')
def test_mutual_auth_fail_card_cryptogram(self):
init_upd_cmd = self.scp02.gen_init_update_apdu(host_challenge=self.host_challenge)
self.assertEqual(b2h(init_upd_cmd).upper(), '805020000840A62C37FA6304F800')
wrong_init_update_resp = self.init_update_resp.copy()
wrong_init_update_resp[-1:] = b'\xff'
with self.assertRaises(ValueError):
self.scp02.parse_init_update_resp(wrong_init_update_resp)
class SCP02_Test(unittest.TestCase):
host_challenge = h2b('40A62C37FA6304F8')
init_update_resp = h2b('00000000000000000000700200016B4524ABEE7CF32EA3838BC148F3')
def setUp(self):
self.scp02 = SCP02(card_keys=ck_3des_70)
init_upd_cmd = self.scp02.gen_init_update_apdu(host_challenge=self.host_challenge)
self.scp02.parse_init_update_resp(self.init_update_resp)
ext_auth_cmd = self.scp02.gen_ext_auth_apdu()
def test_mac_command(self):
# Case #1: No command data field, No response data field present
wrapped = self.scp02.wrap_cmd_apdu(h2b('80F22002'))
self.assertEqual(b2h(wrapped).upper(), '84F220020814DB34FA4341DCA8')
# Case #2: No command data field, Response data field present
wrapped = self.scp02.wrap_cmd_apdu(h2b('80ca006600'))
self.assertEqual(b2h(wrapped).upper(), '84CA00660855ED7C5FF069512B00')
# Case #3: Command data field present, No response data field
wrapped = self.scp02.wrap_cmd_apdu(h2b('80F220020a4f0212345c054f9f70c5'))
self.assertEqual(b2h(wrapped).upper(), '84F22002124F0212345C054F9F70C58FC1B380C4228AF8')
# Case #4: Command data field present, Response data field present
wrapped = self.scp02.wrap_cmd_apdu(h2b('80f28002024f0000'))
self.assertEqual(b2h(wrapped).upper(), '84F280020A4F003B95F09317DE6A4E00')
class SCP03_Test:
"""some kind of 'abstract base class' for a unittest.UnitTest, implementing common functionality for all
of our SCP03 test caseses."""
get_eid_cmd_plain = h2b('80E2910006BF3E035C015A00')
get_eid_rsp_plain = h2b('bf3e125a1089882119900000000000000000000005')
case_1_apdu_plain = h2b('80F22002')
case_2_apdu_plain = h2b('80ca006600')
case_3_apdu_plain = h2b('80F220020a4f0212345c054f9f70c5')
case_4_apdu_plain = h2b('80f28002024f0000')
# must be overridden by derived classes
init_upd_cmd = b''
init_upd_rsp = b''
ext_auth_cmd = b''
get_eid_cmd = b''
get_eid_rsp = b''
keyset = None
@property
def host_challenge(self) -> bytes:
return self.init_upd_cmd[5:-1]
@property
def kvn(self) -> int:
return self.init_upd_cmd[2]
@property
def security_level(self) -> int:
return self.ext_auth_cmd[2]
@property
def card_challenge(self) -> bytes:
if len(self.init_upd_rsp) in [10+3+8+8, 10+3+8+8+3]:
return self.init_upd_rsp[10+3:10+3+8]
else:
return self.init_upd_rsp[10+3:10+3+16]
@property
def card_cryptogram(self) -> bytes:
if len(self.init_upd_rsp) in [10+3+8+8, 10+3+8+8+3]:
return self.init_upd_rsp[10+3+8:10+3+8+8]
else:
return self.init_upd_rsp[10+3+16:10+3+16+16]
@classmethod
def setUpClass(cls):
cls.scp = SCP03(card_keys = cls.keyset)
def test_01_initialize_update(self):
# pylint: disable=no-member
self.assertEqual(self.init_upd_cmd, self.scp.gen_init_update_apdu(self.host_challenge))
def test_02_parse_init_upd_resp(self):
self.scp.parse_init_update_resp(self.init_upd_rsp)
def test_03_gen_ext_auth_apdu(self):
# pylint: disable=no-member
self.assertEqual(self.ext_auth_cmd, self.scp.gen_ext_auth_apdu(self.security_level))
def test_04_wrap_cmd_apdu_get_eid(self):
# pylint: disable=no-member
self.assertEqual(self.get_eid_cmd, self.scp.wrap_cmd_apdu(self.get_eid_cmd_plain))
def test_05_unwrap_rsp_apdu_get_eid(self):
# pylint: disable=no-member
self.assertEqual(self.get_eid_rsp_plain, self.scp.unwrap_rsp_apdu(h2b('9000'), self.get_eid_rsp))
def test_06_mac_command(self):
# pylint: disable=no-member
# Case #1: No command data field, No response data field present
self.assertEqual(self.case_1_apdu, self.scp.wrap_cmd_apdu(self.case_1_apdu_plain))
# Case #2: No command data field, Response data field present
self.assertEqual(self.case_2_apdu, self.scp.wrap_cmd_apdu(self.case_2_apdu_plain))
# Case #3: Command data field present, No response data field
self.assertEqual(self.case_3_apdu, self.scp.wrap_cmd_apdu(self.case_3_apdu_plain))
# Case #4: Command data field present, Response data field present
self.assertEqual(self.case_4_apdu, self.scp.wrap_cmd_apdu(self.case_4_apdu_plain))
# The SCP03 keysets used for various key lenghs
KEYSET_AES128 = GpCardKeyset(0x30, h2b('000102030405060708090a0b0c0d0e0f'), h2b('101112131415161718191a1b1c1d1e1f'), h2b('202122232425262728292a2b2c2d2e2f'))
KEYSET_AES192 = GpCardKeyset(0x31, h2b('000102030405060708090a0b0c0d0e0f0001020304050607'),
h2b('101112131415161718191a1b1c1d1e1f1011121314151617'), h2b('202122232425262728292a2b2c2d2e2f2021222324252627'))
KEYSET_AES256 = GpCardKeyset(0x32, h2b('000102030405060708090a0b0c0d0e0f000102030405060708090a0b0c0d0e0f'),
h2b('101112131415161718191a1b1c1d1e1f101112131415161718191a1b1c1d1e1f'),
h2b('202122232425262728292a2b2c2d2e2f202122232425262728292a2b2c2d2e2f'))
class SCP03_Test_AES128_11(SCP03_Test, unittest.TestCase):
keyset = KEYSET_AES128
init_upd_cmd = h2b('8050300008b13e5f938fc108c400')
init_upd_rsp = h2b('000000000000000000003003703eb51047495b249f66c484c1d2ef1948000002')
ext_auth_cmd = h2b('84821100107d5f5826a993ebc89eea24957fa0b3ce')
get_eid_cmd = h2b('84e291000ebf3e035c015a558d036518a2829700')
get_eid_rsp = h2b('bf3e125a1089882119900000000000000000000005971be68992dbbdfa')
case_1_apdu = h2b('84f220020863a63f8959827fb2')
case_2_apdu = h2b('84ca006608a0c6a4a74166f7ce00')
case_3_apdu = h2b('84f22002124f0212345c054f9f70c52249b50272656536')
case_4_apdu = h2b('84f280020a4f00e91443f6dce6b8ed00')
class SCP03_Test_AES128_03(SCP03_Test, unittest.TestCase):
keyset = KEYSET_AES128
init_upd_cmd = h2b('80503000088e1552d0513c60f300')
init_upd_rsp = h2b('0000000000000000000030037030760cd2c47c1dd395065fe5ead8a9d7000001')
ext_auth_cmd = h2b('8482030010fd4721a14d9b07003c451d2f8ae6bb21')
get_eid_cmd = h2b('84e2910018ca9c00f6713d79bc8baa642bdff51c3f6a4082d3bd9ad26c00')
get_eid_rsp = h2b('bf3e125a1089882119900000000000000000000005')
case_1_apdu = h2b('84f2200208c9811b11f1264cf1')
case_2_apdu = h2b('84ca006608e10ab60b3054798800')
case_3_apdu = h2b('84f22002184e2908bdb48b2315a55482e9e936ca122d6ecfae7d17416e')
case_4_apdu = h2b('84f28002180dd10a6b6193e5340b9e77d32d5a179cd710ac2773aefb2800')
class SCP03_Test_AES128_33(SCP03_Test, unittest.TestCase):
keyset = KEYSET_AES128
init_upd_cmd = h2b('8050300008fdf38259a1e0de4400')
init_upd_rsp = h2b('000000000000000000003003703b1aca81e821f219081cdc01c26b372d000003')
ext_auth_cmd = h2b('84823300108c36f96bcc00724a4e13ad591d7da3f0')
get_eid_cmd = h2b('84e2910018267a85dfe4a98fca6fb0527e0dfecce4914e40401433c87f00')
get_eid_rsp = h2b('f3ba2b1013aa6224f5e1c138d71805c569e5439b47576260b75fc021b25097cb2e68f8a0144975b9')
case_1_apdu = h2b('84f2200208ac6a59024bed84cc')
case_2_apdu = h2b('84ca006608409912ad8fb7aed000')
case_3_apdu = h2b('84f22002185f3dafc3ac14c381536a488bf44e06d056df9d74dbd21e5a')
case_4_apdu = h2b('84f280021865165105be3373347d0424d4400af2ac393f569ec779389e00')
class SCP03_Test_AES192_11(SCP03_Test, unittest.TestCase):
keyset = KEYSET_AES192
init_upd_cmd = h2b('80503100087396430b768b085b00')
init_upd_rsp = h2b('000000000000000000003103708cfc23522ffdbf1e5df5542cac8fd866000003')
ext_auth_cmd = h2b('84821100102145ed30b146f5db252fb7e624cec244')
get_eid_cmd = h2b('84e291000ebf3e035c015aff42cf801d14394400')
get_eid_rsp = h2b('bf3e125a1089882119900000000000000000000005162fbd33e04940a9')
case_1_apdu = h2b('84f22002084584e4f6784811ee')
case_2_apdu = h2b('84ca006608937776ebe190fa3000')
case_3_apdu = h2b('84f22002124f0212345c054f9f70c59a52bddf3040368c')
case_4_apdu = h2b('84f280020a4f009804b11411f7393d00')
class SCP03_Test_AES192_03(SCP03_Test, unittest.TestCase):
keyset = KEYSET_AES192
init_upd_cmd = h2b('805031000869c65da8202bf19f00')
init_upd_rsp = h2b('00000000000000000000310370b570a67be38446717729d6dd3d2ec5b1000001')
ext_auth_cmd = h2b('848203001065df4f1a356a887905466516d9e5b7c1')
get_eid_cmd = h2b('84e2910018d2c6fb477c5d4afe4fd4d21f17eff10d3578ec1774a12a2d00')
get_eid_rsp = h2b('bf3e125a1089882119900000000000000000000005')
case_1_apdu = h2b('84f2200208964e188f0b1bb697')
case_2_apdu = h2b('84ca006608f0820035a41d3e1800')
case_3_apdu = h2b('84f220021806b076ed452cd1fa84f77f5c08a146aa77a9286757dea791')
case_4_apdu = h2b('84f2800218d06527e39222dce091fabdb8e9b898417a67a6852d3577db00')
class SCP03_Test_AES192_33(SCP03_Test, unittest.TestCase):
keyset = KEYSET_AES192
init_upd_cmd = h2b('80503100089b3f2eef0e8c937400')
init_upd_rsp = h2b('00000000000000000000310370f6bb305a15bae1a68f79fb08212fbed7000002')
ext_auth_cmd = h2b('84823300109100bc22d58b45b86a26365ce39ff3cf')
get_eid_cmd = h2b('84e29100188f7f946c84f70d17994bc6e8791251bb1bb1bf02cf8de58900')
get_eid_rsp = h2b('c05176c1b6f72aae50c32cbee63b0e95998928fd4dfb2be9f27ffde8c8476f5909b4805cc4039599')
case_1_apdu = h2b('84f2200208d5d97754b6b3d2ba')
case_2_apdu = h2b('84ca006608516c82b8e30adbeb00')
case_3_apdu = h2b('84f2200218cc247f4761e6944277a4e0d6e32e44025b1e31537e2fc668')
case_4_apdu = h2b('84f2800218ba22b63d509bef5d093b43e5eaed03ed23144ab2d9cb51de00')
class SCP03_Test_AES256_11(SCP03_Test, unittest.TestCase):
keyset = KEYSET_AES256
init_upd_cmd = h2b('805032000811666d57866c6f5400')
init_upd_rsp = h2b('0000000000000000000032037053ea8847efa7674e41498a4d66cf0dee000003')
ext_auth_cmd = h2b('84821100102f2ad190eff2fafc4908996d1cebd310')
get_eid_cmd = h2b('84e291000ebf3e035c015af4b680372542b59d00')
get_eid_rsp = h2b('bf3e125a10898821199000000000000000000000058012dd7f01f1c4c1')
case_1_apdu = h2b('84f2200208d618b7da68d5fe52')
case_2_apdu = h2b('84ca0066088f3e055db23ad5e500')
case_3_apdu = h2b('84f22002124f0212345c054f9f70c5b6e15cc42404915e')
case_4_apdu = h2b('84f280020a4f00aa124aa74afe7f7500')
class SCP03_Test_AES256_03(SCP03_Test, unittest.TestCase):
keyset = KEYSET_AES256
init_upd_cmd = h2b('8050320008c6066990fc426e1d00')
init_upd_rsp = h2b('000000000000000000003203708682cd81bbd8919f2de3f2664581f118000001')
ext_auth_cmd = h2b('848203001077c493b632edadaf865a1e64acc07ce9')
get_eid_cmd = h2b('84e29100183ddaa60594963befaada3525b492ede23c2ab2c1ce3afe4400')
get_eid_rsp = h2b('bf3e125a1089882119900000000000000000000005')
case_1_apdu = h2b('84f2200208480ddc8e419da38d')
case_2_apdu = h2b('84ca0066083e9d6a6c0b2d732000')
case_3_apdu = h2b('84f22002183ebfef2da8b04af2a85f491f299b76973df76ff08a4031be')
case_4_apdu = h2b('84f2800218783fff80990f5585b1055010ea95094a26e4a8f1ef4b18e100')
class SCP03_Test_AES256_33(SCP03_Test, unittest.TestCase):
keyset = KEYSET_AES256
init_upd_cmd = h2b('805032000897b2055fe58599fd00')
init_upd_rsp = h2b('00000000000000000000320370a8439a22cedf045fa9f1903b2834f26e000002')
ext_auth_cmd = h2b('8482330010508a0fd959d2e547c6b33154a6be2057')
get_eid_cmd = h2b('84e29100187a5ef717eaf1e135ae92fe54429d0e465decda65f5fe5aea00')
get_eid_rsp = h2b('ea90dbfa648a67c5eb6abc57f8530b97d0cd5647c5e8732016b55203b078dd2ace7f8bc5d1c1cd99')
case_1_apdu = h2b('84f2200208bcc5c17275545d93')
case_2_apdu = h2b('84ca00660804806aba9d543bb600')
case_3_apdu = h2b('84f2200218717222491556ec81a45f49ce48be33320024801a1c4cb0e0')
case_4_apdu = h2b('84f2800218561f105bccd3a1642904b251ccc1228beb80a82370a8637000')
# FIXME:
# - for S8 and S16 mode
# FIXME: test auth with random (0x60) vs pseudo-random (0x70) challenge
class KeyComponentBlock_Test(unittest.TestCase):
"""Tests for the kcb of GP CardSpec v2.3
- Table 11-70 kcv that required padding, preceded by its clear-text length
- Table 11-71 no padding required"""
def setUp(self):
# SCP02 (3DES DEK, 8 byte blocks), same vectors as SCP02_Test
self.scp02 = SCP02(card_keys=ck_3des_70)
self.scp02.gen_init_update_apdu(host_challenge=h2b('40A62C37FA6304F8'))
self.scp02.parse_init_update_resp(h2b('00000000000000000000700200016B4524ABEE7CF32EA3838BC148F3'))
self.scp02.gen_ext_auth_apdu()
# SCP03 (AES DEK, 16 byte blocks), same vectors as SCP03_Test_AES128_11
self.scp03 = SCP03(card_keys=KEYSET_AES128)
self.scp03.gen_init_update_apdu(h2b('b13e5f938fc108c4'))
self.scp03.parse_init_update_resp(h2b('000000000000000000003003703eb51047495b249f66c484c1d2ef1948000002'))
self.scp03.gen_ext_auth_apdu(0x11)
def test_encrypt_decrypt_key(self):
for scp in (self.scp02, self.scp03):
bs = scp.sk.blocksize
for keylen in range(1, 3 * bs + 1):
with self.subTest(scp=type(scp).__name__, keylen=keylen):
key = bytes(range(keylen))
kcb = scp.encrypt_key(key)
if keylen % bs:
# Table 11-70: <length of clear key component> || <encrypted padded value>
self.assertEqual(kcb[0], keylen)
self.assertEqual((len(kcb) - 1) % bs, 0)
self.assertEqual(len(kcb) - 1, keylen + (bs - keylen % bs))
else:
# Table 11-71: only the encrypted key component value
self.assertEqual(len(kcb), keylen)
self.assertEqual(scp.decrypt_key(kcb), key)
class SCP03_KCV_Test(unittest.TestCase):
def test_kcv(self):
self.assertEqual(compute_kcv('aes', KEYSET_AES128.enc), h2b('C35280'))
self.assertEqual(compute_kcv('aes', KEYSET_AES128.mac), h2b('013808'))
self.assertEqual(compute_kcv('aes', KEYSET_AES128.dek), h2b('840DE5'))
class PutKey_PSK_Test(unittest.TestCase):
"""Tests for the PUT KEY command data field encoding, in particular the PSK TLS ('85') key data
field defined by GlobalPlatform Amendment B (Remote Application Management over HTTP) Table 3-13."""
# the PUT KEY encoder we exercise
C = ADF_SD.AddlShellCommands
# SCP80 TLS-PSK example key from the do_put_key docstring (16 bytes)
PSK_CLEAR = h2b('303132333435363738393a3b3c3d3e3f')
# its DEK ciphertext + Table 3-13 KCV with SCP02 session set up below
PSK_CIPHERED = h2b('15abf1fe16ccc5aa13743394442942cd')
PSK_KCV = h2b('06125d') # = SHA-1(PSK_CLEAR)[:3]
def setUp(self):
# SCP02 with the same vectors as SCP02_Test, so that the whole PUT KEY data field is reproducible.
self.scp02 = SCP02(card_keys=ck_3des_70)
self.scp02.gen_init_update_apdu(host_challenge=h2b('40A62C37FA6304F8'))
self.scp02.parse_init_update_resp(h2b('00000000000000000000700200016B4524ABEE7CF32EA3838BC148F3'))
self.scp02.gen_ext_auth_apdu()
def test_psk_kcv_is_sha1(self):
# GP Amendment B Table 3-13: KCV = 3 most significant bytes of SHA-1(clear key)
self.assertEqual(compute_kcv('tls_psk', self.PSK_CLEAR), hashlib.sha1(self.PSK_CLEAR).digest()[:3])
self.assertEqual(compute_kcv('tls_psk', self.PSK_CLEAR), self.PSK_KCV)
def test_encode_psk_framing_golden(self):
# assert the exact Table 3-13 layout
# 85 | L1 | L2 | <ciphered> | 03 | <SHA-1(clear)[:3]>
clear = self.PSK_CLEAR
ciphered = h2b('aabbccddeeff00112233445566778899') # arbitrary 16-byte ciphertext
kcv = hashlib.sha1(clear).digest()[:3]
field = self.C.encode_key_data_psk(clear, ciphered, kcv)
# 85 L1 L2 <---------- ciphered -----------> 03 <-kcv->
self.assertEqual(b2h(field),'85' '11' '10' 'aabbccddeeff00112233445566778899' '03' + b2h(kcv))
self.assertEqual(b2h(field),'851110aabbccddeeff0011223344556677889903' + '06125d')
def test_psk_golden_over_scp02(self):
# Full PUT KEY data field (KVN 0x40 + single PSK key) enciphered with the SCP02 DEK.
keys = [{'key_type': 'tls_psk', 'clear_key': self.PSK_CLEAR,
'kcv': compute_kcv('tls_psk', self.PSK_CLEAR)}]
data = self.C.build_put_key_data(0x40, keys, self.scp02)
self.assertEqual(b2h(data),
'40' '85' '11' '10' + b2h(self.PSK_CIPHERED) + '03' + b2h(self.PSK_KCV))
def test_wrong_basic_format_differs(self):
# regression test, the generic "Basic format" does NOT match Table 3-13 for a PSK key
# rejected by card with with 6a88
wrong_basic = self.C.encode_key_data_basic('tls_psk', self.PSK_CIPHERED, b'')
right_psk = self.C.encode_key_data_psk(self.PSK_CLEAR, self.PSK_CIPHERED, self.PSK_KCV)
self.assertEqual(b2h(wrong_basic), '8510' + b2h(self.PSK_CIPHERED) + '00')
self.assertEqual(b2h(right_psk), '8511' '10' + b2h(self.PSK_CIPHERED) + '03' + b2h(self.PSK_KCV))
self.assertNotEqual(wrong_basic, right_psk)
def test_key_component_block_length_is_bertlv(self):
# GP CardSpec v2.3.1 Section 11.8.2.3.1: all lengths ofPUT KEY are always BER TLV coded
for kcb_len, exp_len_field in [(127, '7f'), (128, '8180'), (129, '8181'), (256, '820100')]:
with self.subTest(kcb_len=kcb_len):
kcb = bytes(kcb_len)
field = self.C.encode_key_data_basic('rsa_modulus_n', kcb, b'')
self.assertEqual(b2h(field), 'a2' + exp_len_field + b2h(kcb) + '00')
# 85 field of Amendment B Table 3-13 uses the same coding
# single byte inner length (clear key < 128) == block kcb_len bytes long
psk = self.C.encode_key_data_psk(bytes(120), bytes(kcb_len - 1), b'')
self.assertEqual(b2h(psk)[:2 + len(exp_len_field)], '85' + exp_len_field)
def test_basic_format_unchanged(self):
# as before
for kt, clear in [('des', h2b('404142434445464748494a4b4c4d4e4f')),
('aes', h2b('000102030405060708090a0b0c0d0e0f'))]:
ciph = self.scp02.encrypt_key(clear)
kcv = compute_kcv(kt, clear)
via_construct = build_construct(self.C.KeyDataBasic, {'key_type': kt, 'kcb': b2h(ciph), 'kcv': b2h(kcv)})
via_helper = self.C.encode_key_data_basic(kt, ciph, kcv)
self.assertEqual(via_helper, via_construct)
def test_psk_padding_no_double_length(self):
# A PSK key whose length is not a multiple of the DEK block size (DES: 8) is right-padded before
# ciphering. Table 3-13 states the clear key length (L2) in the '85' DO itself, so the ciphered
# key field is the bare cryptogram:
# - ciphered field == padded ciphertext (no duplicated length prefix),
# - clear key == first L2 bytes.
for keylen in (18, 20):
with self.subTest(keylen=keylen):
clear = bytes(range(keylen))
padded_len = keylen + (-keylen % 8)
field = self.C.build_put_key_data(0x40, [{'key_type': 'tls_psk', 'clear_key': clear,
'kcv': compute_kcv('tls_psk', clear)}], self.scp02)[1:]
self.assertEqual(field[0], 0x85)
l1 = field[1]
l2 = field[2]
self.assertEqual(l2, keylen) # single-byte BER length of clear key
ciphered = field[3:3 + (l1 - 1)] # value = L2 (1 byte) || ciphered key
self.assertEqual(len(ciphered), padded_len) # padded to the 8-byte DES block size
self.assertEqual(l1, 1 + padded_len) # no duplicated length prefix
self.assertEqual(self.scp02.dek_decrypt(ciphered)[:keylen], clear)
def test_psk_clear_key_is_not_padded_in_place(self):
# padding the bytearray in place would make L2 the padded length,
# then stored as key material and rejected thanks to the KCV
clear = h2b('000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d') # 30, not %8
kcv = compute_kcv('tls_psk', clear)
field = self.C.build_put_key_data(0x40, [{'key_type': 'tls_psk', 'clear_key': clear,
'kcv': kcv}], self.scp02)[1:]
self.assertEqual(len(clear), 30)
self.assertEqual(field[2], 30) # L2 == clear key length, not 32
self.assertEqual(self.scp02.dek_decrypt(field[3:3 + field[1] - 1])[:30], clear)
def test_kcv_suppressed(self):
# --suppress-key-check -> KCV length 00 and no KCV bytes
field = self.C.build_put_key_data(0x40, [{'key_type': 'tls_psk', 'clear_key': self.PSK_CLEAR,
'kcv': b''}], self.scp02)[1:]
self.assertEqual(b2h(field), '8511' '10' + b2h(self.PSK_CIPHERED) + '00')
def test_multikey_psk_plus_des_dek(self):
# load a PSK TLS key (KID 1, Amendment B format) together with its DES DEK
# (KID 2, Basic format) in one PUT KEY.
# Verify the concatenated data field parses back into the two components with proper type formats.
dek = h2b('404142434445464748494a4b4c4d4e4f')
keys = [{'key_type': 'tls_psk', 'clear_key': self.PSK_CLEAR, 'kcv': compute_kcv('tls_psk', self.PSK_CLEAR)},
{'key_type': 'des', 'clear_key': dek, 'kcv': compute_kcv('des', dek)}]
data = self.C.build_put_key_data(0x40, keys, self.scp02)
b = data
self.assertEqual(b[0], 0x40) # KVN
b = b[1:]
# component 1: PSK TLS (Table 3-13)
self.assertEqual(b[0], 0x85)
self.assertEqual(b[1], 0x11) # L1 = 17
self.assertEqual(b[2], 0x10) # L2 = 16 (clear key length)
self.assertEqual(b[3:3 + 16], self.PSK_CIPHERED)
self.assertEqual(b[3 + 16], 0x03) # KCV length
self.assertEqual(b[3 + 16 + 1:3 + 16 + 1 + 3], self.PSK_KCV)
b = b[3 + 16 + 1 + 3:]
# component 2: DES DEK (Basic format)
self.assertEqual(b[0], 0x80) # key type des
kcb_len = b[1]
self.assertEqual(kcb_len, 16)
self.assertEqual(b[2:2 + kcb_len], self.scp02.encrypt_key(dek))
b = b[2 + kcb_len:]
self.assertEqual(b[0], 0x03) # KCV length
self.assertEqual(b[1:1 + 3], compute_kcv('des', dek))
self.assertEqual(b[1 + 3:], b'') # no trailing bytes
def test_no_scp_leaves_key_clear(self):
# During personalization (no SCP) the key is not enciphered, framing still follows Table 3-13.
field = self.C.build_put_key_data(0x40, [{'key_type': 'tls_psk', 'clear_key': self.PSK_CLEAR,
'kcv': self.PSK_KCV}], None)[1:]
self.assertEqual(b2h(field), '8511' '10' + b2h(self.PSK_CLEAR) + '03' + b2h(self.PSK_KCV))
class PutKey_Length_Test(unittest.TestCase):
"""Tests for the length of the PUT KEY command APDU. Lc of GP CardSpec v2.3 Table 11-64 is a
single byte, so an oversized key data field cannot be sent."""
class PutKeyOnly(ADF_SD.AddlShellCommands):
"""ADF_SD.AddlShellCommands with a canned scc to drive put_key()"""
def __init__(self, scp=None, max_cmd_len=255):
super().__init__()
self.sent = []
self.scc = SimpleNamespace(scp=scp, max_cmd_len=max_cmd_len,
send_apdu_checksw=lambda pdu: (self.sent.append(pdu), ('', '9000'))[1])
@property
def _cmd(self):
return SimpleNamespace(lchan=SimpleNamespace(scc=self.scc))
# KVN, key type, two byte BER length of the key component block, KCV length; KCV suppressed
FRAMING = 1 + 1 + 2 + 1
@staticmethod
def key(nbytes: int):
return [{'key_type': 'rsa_modulus_n', 'clear_key': bytes(nbytes), 'kcv': b''}]
def test_lc_matches_data_field(self):
# largest key component block that still fits without a secure channel
sd = self.PutKeyOnly()
sd.put_key(0, 0x40, 1, self.key(255 - self.FRAMING))
apdu = sd.sent[0]
self.assertEqual(apdu[:8], '80D80001')
lc = int(apdu[8:10], 16)
self.assertEqual(lc, 255) # Lc ...
self.assertEqual(len(apdu[10:-2]) // 2, lc) # ... and it matches the actual data field
def test_oversized_key_data_raises(self):
# real world fat example: RSA-2048 modulus does not fit, led to 3 nibble Lc 106,
# which silently shifted and broke the whole APDU by half a byte.
sd = self.PutKeyOnly()
with self.assertRaises(ValueError) as ctx:
sd.put_key(0, 0x40, 1, self.key(256))
self.assertIn('262', str(ctx.exception))
self.assertIn('255', str(ctx.exception))
self.assertEqual(sd.sent, []) # nothing was sent to the card
def test_secure_channel_overhead_lowers_the_limit(self):
# scc.max_cmd_len shrinks by the C-MAC + encryption padding of active SCP
sd = self.PutKeyOnly(max_cmd_len=239)
sd.put_key(0, 0x40, 1, self.key(239 - self.FRAMING))
self.assertEqual(int(sd.sent[0][8:10], 16), 239)
with self.assertRaises(ValueError):
sd.put_key(0, 0x40, 1, self.key(239 - self.FRAMING + 1))
class Install_param_Test(unittest.TestCase):
def test_gen_install_parameters(self):
load_parameters = gen_install_parameters(256, 256, '010001001505000000000000000000000000')
self.assertEqual(load_parameters, 'c900ef1cc8020100c7020100ca12010001001505000000000000000000000000')
load_parameters = gen_install_parameters()
self.assertEqual(load_parameters, 'c900')
class SCP_Overhead_Test(unittest.TestCase):
"""SCP.overhead varies according to the current security level:
C-MAC + at level >= 3 the worst-case padding!
"""
def _scp02(self, security_level):
scp = SCP02(card_keys=ck_3des_70)
scp.sk = Scp02SessionKeys(0x0001, ck_3des_70)
scp.security_level = security_level
return scp
def _scp03(self, security_level, s_mode=8):
scp = SCP03(card_keys=KEYSET_AES128, s_mode=s_mode)
scp.sk = Scp03SessionKeys(KEYSET_AES128, b'\x00' * s_mode, b'\x11' * s_mode)
scp.security_level = security_level
return scp
def test_scp02(self):
self.assertEqual(self._scp02(0x00).overhead, 0) # no wrapping at all
self.assertEqual(self._scp02(0x01).overhead, 8) # C-MAC
self.assertEqual(self._scp02(0x03).overhead, 16) # C-MAC + C-DEC: pad80 to 8, largest fit 239
def test_scp03_s8(self):
self.assertEqual(self._scp03(0x00).overhead, 0)
self.assertEqual(self._scp03(0x01).overhead, 8)
self.assertEqual(self._scp03(0x03).overhead, 16) # pad80 to 16 within 247 -> 240, minus pad byte
self.assertEqual(self._scp03(0x33).overhead, 16) # R-MAC/R-ENC add no *command* overhead
def test_scp03_s16(self):
self.assertEqual(self._scp03(0x01, s_mode=16).overhead, 16)
self.assertEqual(self._scp03(0x03, s_mode=16).overhead, 32) # pad80 to 16 within 239 -> 224, minus pad byte
class SCP_Lc_Limit_Test_Base(unittest.TestCase):
"""Test wrap_cmd_apdu() boundary handling: data of (255 - overhead) must produce Lc <= 255 else ValueError"""
def _load_apdu(self, data_len):
return h2b('80E80000') + bytes([data_len]) + b'\xa5' * data_len
def _check_boundary(self, scp):
fits = 255 - scp.overhead
wrapped = scp.wrap_cmd_apdu(self._load_apdu(fits))
self.assertLessEqual(wrapped[4], 255)
self.assertEqual(len(wrapped), 5 + wrapped[4]) # case #3: header + Lc bytes, no Le
with self.assertRaises(ValueError) as ctx:
scp.wrap_cmd_apdu(self._load_apdu(fits + 1))
self.assertIn('Lc', str(ctx.exception))
class SCP02_Lc_Limit_Test(SCP_Lc_Limit_Test_Base):
"""Same session vectors as SCP02_Auth_Test"""
def setUp(self):
self.scp02 = SCP02(card_keys=ck_3des_70)
self.scp02.gen_init_update_apdu(host_challenge=h2b('40A62C37FA6304F8'))
self.scp02.parse_init_update_resp(h2b('00000000000000000000700200016B4524ABEE7CF32EA3838BC148F3'))
self.scp02.gen_ext_auth_apdu()
def test_cmac_only(self):
self.scp02.security_level = 0x01
self._check_boundary(self.scp02) # 247 fits, 248 raises
def test_cmac_cdec(self):
self.scp02.security_level = 0x03
self._check_boundary(self.scp02) # 239 fits (-> Lc 248), 240 raises (would be 256)
def test_cmac_cdec_wrapped_lc(self):
# my actual failing case: 240 bytes at level 3
self.scp02.security_level = 0x03
wrapped = self.scp02.wrap_cmd_apdu(self._load_apdu(239))
self.assertEqual(wrapped[4], 248) # 239 -> pad80 -> 240 ciphertext + 8 mac
class SCP03_Lc_Limit_Test(SCP_Lc_Limit_Test_Base):
"""Session keys derived directly"""
def _scp03(self, security_level, s_mode):
scp = SCP03(card_keys=KEYSET_AES128, s_mode=s_mode)
scp.sk = Scp03SessionKeys(KEYSET_AES128, b'\x00' * s_mode, b'\x11' * s_mode)
scp.security_level = security_level
return scp
def test_s8_cmac_only(self):
self._check_boundary(self._scp03(0x01, 8)) # 247 fits, 248 raises
def test_s8_cmac_cdec(self):
self._check_boundary(self._scp03(0x03, 8)) # 239 fits, 240 raises
def test_s16_cmac_only(self):
self._check_boundary(self._scp03(0x01, 16)) # 239 fits, 240 raises
def test_s16_cmac_cdec(self):
self._check_boundary(self._scp03(0x03, 16)) # 223 fits, 224 raises
class _FakeSccForLoad:
"""mock lchan.scc: records LOAD APDUs, optionally wrapping them through a real SCP
instance first where the Lc overflow used to blow up"""
def __init__(self, max_cmd_len=255, scp=None):
self.max_cmd_len = max_cmd_len
self.scp = scp
self.sent = []
self.wrapped = []
def send_apdu_checksw(self, apdu, sw='9000'):
self.sent.append(apdu.lower())
if self.scp:
self.wrapped.append(self.scp.wrap_cmd_apdu(h2b(apdu)))
return ('', '9000')
class Load_ChunkLen_Test(unittest.TestCase):
"""ADF_SD.load() chunking: block size must use scc.max_cmd_len"""
payload = b'\xaa' * 500 # actual real world case LOAD TLV: C4 + 8201f4 + 500 = 504 total
def _sd(self, scc):
cmd = type('_Cmd', (), {'lchan': type('_Lchan', (), {'scc': scc})(),
'poutput': lambda self, *args: None})()
# cmd2 CommandSet has a r/o _cmd property -> shadow it
_SD = type('_SD', (ADF_SD.AddlShellCommands,), {'_cmd': cmd})
return _SD.__new__(_SD)
def _blocks(self, scc):
"""Get (p1, p2, lc) from LOAD APDU"""
for apdu in scc.sent:
self.assertEqual(apdu[0:4], '80e8')
yield int(apdu[4:6], 16), int(apdu[6:8], 16), int(apdu[8:10], 16)
def test_default_no_scp(self):
"""Without SCP the old 240 byte block size is kept, no idea what else might rely on this number"""
scc = _FakeSccForLoad(max_cmd_len=255)
self._sd(scc).load(self.payload)
blocks = list(self._blocks(scc))
self.assertEqual([b[2] for b in blocks], [240, 240, 24])
self.assertEqual([b[0] for b in blocks], [0x00, 0x00, 0x80]) # P1: last block flagged
self.assertEqual([b[1] for b in blocks], [0, 1, 2]) # P2: block num
def test_default_scp02_level3(self):
"""max_cmd_len 239 (SCP02 lvl 3) squeezes the blocks"""
scc = _FakeSccForLoad(max_cmd_len=239)
self._sd(scc).load(self.payload)
self.assertEqual([b[2] for b in list(self._blocks(scc))], [239, 239, 26])
def test_explicit_chunk_len(self):
scc = _FakeSccForLoad(max_cmd_len=255)
self._sd(scc).load(self.payload, chunk_len=100)
self.assertEqual([b[2] for b in list(self._blocks(scc))], [100] * 5 + [4])
def test_explicit_chunk_len_too_large(self):
scc = _FakeSccForLoad(max_cmd_len=239)
with self.assertRaises(ValueError):
self._sd(scc).load(self.payload, chunk_len=240)
self.assertEqual(scc.sent, []) # nothing sent!
def test_explicit_chunk_len_zero(self):
scc = _FakeSccForLoad(max_cmd_len=255)
with self.assertRaises(ValueError):
self._sd(scc).load(self.payload, chunk_len=0)
def test_end_to_end_scp02_level3(self):
"""original failure: 286 byte CAP + SCP02 lvl 3"""
scp02 = SCP02(card_keys=ck_3des_70)
scp02.gen_init_update_apdu(host_challenge=h2b('40A62C37FA6304F8'))
scp02.parse_init_update_resp(h2b('00000000000000000000700200016B4524ABEE7CF32EA3838BC148F3'))
scp02.gen_ext_auth_apdu()
scp02.security_level = 0x03
scc = _FakeSccForLoad(max_cmd_len=255 - scp02.overhead, scp=scp02)
self._sd(scc).load(b'\x5a' * 286)
self.assertEqual(len(scc.sent), 2) # 289 byte TLV in blocks of 239
for wrapped in scc.wrapped:
self.assertLessEqual(wrapped[4], 255)
# Real Card Data (GET DATA '66'), as returned by sja5 + euicc
CARD_DATA_V211 = ('6631732f06072a864886fc6b01600c060a2a864886fc6b0202010163090607'
'2a864886fc6b03640b06092a864886fc6b040215')
CARD_DATA_V22 = ('663b733906072a864886fc6b01600b06092a864886fc6b020202630906072a86'
'4886fc6b03640b06092a864886fc6b040370640b06092a864886fc6b04810400')
class _FakeScc:
"""mock lchan.scc: replays scripted (data, sw) pairs + records the APDUs sent."""
def __init__(self, responses, card_data=CARD_DATA_V211):
self._responses = list(responses)
self._card_data = card_data
self.sent = []
def get_data(self, cla, tag):
if self._card_data is None:
raise SwMatchError('6a88', '9000')
return self._card_data, '9000'
def send_apdu(self, apdu):
self.sent.append(apdu.lower())
if not self._responses:
raise AssertionError('get_status sent unexpected APDU: %s' % apdu)
return self._responses.pop(0)
class GpVersion_Test(unittest.TestCase):
"""GP version from Card Recognition Data, which v2.1.1/v2.3.1 section 7.4.1.3
require to be present. The OID under tag 60 is {globalPlatform 2 v...}."""
def test_decode_real_cards(self):
self.assertEqual(decode_gp_version(h2b(CARD_DATA_V211)), (2, 1, 1))
self.assertEqual(decode_gp_version(h2b(CARD_DATA_V22)), (2, 2))
def test_unknown_oid_is_none(self):
self.assertIsNone(decode_gp_version(h2b('66097307060512345678')))
def test_tag_lists_follow_the_spec_tables(self):
"""table 11-36 applications, table 11-37 for load files"""
self.assertEqual(b2h(get_status_tag_list('isd')), '5c074f9f70c5cfc4cc')
self.assertEqual(b2h(get_status_tag_list('applications')), '5c074f9f70c5cfc4cc')
self.assertEqual(b2h(get_status_tag_list('files')), '5c054f9f70cecc')
self.assertEqual(b2h(get_status_tag_list('files_and_modules')), '5c064f9f70ce84cc')
# C5 never load files, 84 never applications
self.assertNotIn('c5', b2h(get_status_tag_list('files')))
self.assertNotIn('84', b2h(get_status_tag_list('applications'))[4:])
class GetStatus_Pagination_Test(unittest.TestCase):
"""GPC v2.3.1 section 11.4.3.2 table 11-38 GET STATUS pagination test
Card answers 6310 when further matches are pending; command reissued with
P2 bit 1 "next occurrence" set. Tied to T=0 handling pySim/transport, which
used to swallow that 6310 and replied with GET RESPONSE, so page 2 was never fetched."""
ENTRY_1 = 'e3074f05a000000151'
ENTRY_2 = 'e3074f05a000000152'
def _sd(self, responses, card_data=CARD_DATA_V211):
scc = _FakeScc(responses, card_data)
cmd = type('_Cmd', (), {'lchan': type('_Lchan', (), {'scc': scc})()})()
# cmd2 strikes again, CommandSet exposes _cmd as a read only property, needs shadowing
_SD = type('_SD', (ADF_SD.AddlShellCommands,), {'_cmd': cmd})
return _SD.__new__(_SD), scc
def _aids(self, grd_list):
return [b2h(grd.to_dict()['gp_registry_related_data'][0]['application_aid']) for grd in grd_list]
def test_single_page(self):
sd, scc = self._sd([(self.ENTRY_1, '9000')])
grd_list = sd.get_status('applications')
self.assertEqual(scc.sent, ['80f24002024f0000'])
self.assertEqual(self._aids(grd_list), ['a000000151'])
def test_two_pages(self):
"""6310 -> reissue with P2 bit 1 set -> 9000, both pages in result"""
sd, scc = self._sd([(self.ENTRY_1, '6310'), (self.ENTRY_2, '9000')])
grd_list = sd.get_status('applications')
self.assertEqual(scc.sent, ['80f24002024f0000',
'80f24003024f0000'])
self.assertEqual(self._aids(grd_list), ['a000000151', 'a000000152'])
def test_three_pages_keep_p2_next_occurrence(self):
sd, scc = self._sd([(self.ENTRY_1, '6310'), (self.ENTRY_2, '6310'), (self.ENTRY_1, '9000')])
grd_list = sd.get_status('applications')
self.assertEqual([a[6:8] for a in scc.sent], ['02', '03', '03'])
self.assertEqual(len(grd_list), 3)
def test_no_match_returns_empty(self):
"""6A88 "referenced data not found" is empty result not failure."""
sd, _scc = self._sd([('', '6a88')])
self.assertEqual(sd.get_status('applications'), [])
def test_v211_card_gets_no_tag_list(self):
"""v2.1.1 section 9.4.2.3 has no tag list,not send a tag list"""
sd, scc = self._sd([(self.ENTRY_1, '9000')], card_data=CARD_DATA_V211)
sd.get_status('applications')
self.assertEqual(scc.sent, ['80f24002024f0000'])
self.assertNotIn('5c', scc.sent[0][8:])
def test_v22_card_gets_a_tag_list(self):
sd, scc = self._sd([(self.ENTRY_1, '9000')], card_data=CARD_DATA_V22)
sd.get_status('applications')
self.assertEqual(scc.sent, ['80f240020b4f005c074f9f70c5cfc4cc00'])
def test_unknown_version_gets_no_tag_list(self):
"""If the card will not say, assume the conservative form that works everywhere."""
sd, scc = self._sd([(self.ENTRY_1, '9000')], card_data=None)
sd.get_status('applications')
self.assertEqual(scc.sent, ['80f24002024f0000'])
def test_v22_card_rejecting_tag_list_falls_back(self):
"""card announcing v2.2+ that still answers 6A80 to the tag list."""
sd, scc = self._sd([('', '6a80'), (self.ENTRY_1, '9000')], card_data=CARD_DATA_V22)
grd_list = sd.get_status('applications')
self.assertEqual(scc.sent, ['80f240020b4f005c074f9f70c5cfc4cc00',
'80f24002024f0000'])
self.assertEqual(self._aids(grd_list), ['a000000151'])
def test_aid_search_qualifier(self):
sd, scc = self._sd([(self.ENTRY_1, '9000')])
sd.get_status('applications', 'a000000087')
self.assertEqual(scc.sent, ['80f24002074f05a00000008700'])
def test_6a80_is_reported_on_a_v211_card(self):
"""no tag list -> 6A80 is error"""
sd, _scc = self._sd([('', '6a80')], card_data=CARD_DATA_V211)
with self.assertRaises(SwMatchError) as ctx:
sd.get_status('applications')
self.assertEqual(ctx.exception.sw_actual, '6a80')
def test_unexpected_sw_is_not_silently_truncated(self):
"""partial is not complete result"""
sd, _scc = self._sd([(self.ENTRY_1, '6310'), ('', '6982')])
with self.assertRaises(SwMatchError) as ctx:
sd.get_status('applications')
self.assertEqual(ctx.exception.sw_actual, '6982')
def test_v22_card_answering_6a88_to_the_tag_list_falls_back(self):
"""6A88 is the other GET STATUS error condition of table 11-39, section 11.4.2.3
says we may get get an error status. 6A88 to the tag-list attempt should be retried
without it or we get nothing"""
sd, scc = self._sd([('', '6a88'), (self.ENTRY_1, '9000')], card_data=CARD_DATA_V22)
grd_list = sd.get_status('applications')
self.assertEqual(scc.sent, ['80f240020b4f005c074f9f70c5cfc4cc00',
'80f24002024f0000'])
self.assertEqual(self._aids(grd_list), ['a000000151'])
def test_v22_card_with_a_genuinely_empty_subset(self):
"""...and when the retry answers 6A88, the list really is empty."""
sd, scc = self._sd([('', '6a88'), ('', '6a88')], card_data=CARD_DATA_V22)
self.assertEqual(sd.get_status('applications'), [])
self.assertEqual(len(scc.sent), 2)
def test_6a88_after_a_page_keeps_that_page(self):
"""6A88 is "no more matches" after we have data, we're done"""
sd, _scc = self._sd([(self.ENTRY_1, '6310'), ('', '6a88')], card_data=CARD_DATA_V22)
self.assertEqual(self._aids(sd.get_status('applications')), ['a000000151'])
if __name__ == "__main__":
unittest.main()