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global_platform: Add DEK (key) encryption support

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Change-Id: I940cc2e16a1d3e3cdef4ebcf3f15fc2c8de21284
This commit is contained in:
Harald Welte
2024-02-04 16:46:38 +01:00
parent 2bb2ff4aeb
commit 62bd7d3df2
2 changed files with 62 additions and 2 deletions
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8
pySim/global_platform/__init__.py
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@@ -544,7 +544,13 @@ class ADF_SD(CardADF):
else:
kcv_bin = compute_kcv(opts.key_type[i], h2b(opts.key_data[i])) or b''
kcv = b2h(kcv_bin)
kdb.append({'key_type': opts.key_type[i], 'kcb': opts.key_data[i], 'kcv': kcv})
if self._cmd.lchan.scc.scp:
# encrypte key data with DEK of current SCP
kcb = b2h(self._cmd.lchan.scc.scp.card_keys.encrypt_key(h2b(opts.key_data[i])))
else:
# (for example) during personalization, DEK might not be required)
kcb = opts.key_data[i]
kdb.append({'key_type': opts.key_type[i], 'kcb': kcb, 'kcv': kcv})
p2 = opts.key_id
if len(opts.key_type) > 1:
p2 |= 0x80