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global_platform: Fix --key-id argument 

The key-id is actually a 7-bit integer and on the wire the 8th bit
has a special meaning which can be derived automatically.

Let's unburden the user from explicitly encoding that 8th bit and
instead set it automatically.

Change-Id: I8da37aa8fd064e6d35ed29a70f5d7a0e9060be3a
This commit is contained in:
Harald Welte 2024-02-04 14:00:27 +01:00
parent bdf8419966
commit a30ee17246
1 changed files with 6 additions and 3 deletions
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9
pySim/global_platform/__init__.py
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@ -522,12 +522,12 @@ class ADF_SD(CardADF):
See GlobalPlatform CardSpecification v2.3 Section 11.8 for details.
Example (SCP80 KIC/KID/KIK):
put_key --key-version-nr 1 --key-id 0x81 --key-type aes --key-data 000102030405060708090a0b0c0d0e0f
put_key --key-version-nr 1 --key-id 0x01 --key-type aes --key-data 000102030405060708090a0b0c0d0e0f
--key-type aes --key-data 101112131415161718191a1b1c1d1e1f
--key-type aes --key-data 202122232425262728292a2b2c2d2e2f
Example (SCP81 TLS-PSK/KEK):
put_key --key-version-nr 0x40 --key-id 0x81 --key-type tls_psk --key-data 303132333435363738393a3b3c3d3e3f
put_key --key-version-nr 0x40 --key-id 0x01 --key-type tls_psk --key-data 303132333435363738393a3b3c3d3e3f
--key-type des --key-data 404142434445464748494a4b4c4d4e4f
"""
@ -540,7 +540,10 @@ class ADF_SD(CardADF):
else:
kcv = ''
kdb.append({'key_type': opts.key_type[i], 'kcb': opts.key_data[i], 'kcv': kcv})
self.put_key(opts.old_key_version_nr, opts.key_version_nr, opts.key_id, kdb)
p2 = opts.key_id
if len(opts.key_type) > 1:
p2 |= 0x80
self.put_key(opts.old_key_version_nr, opts.key_version_nr, p2, kdb)
# Table 11-68: Key Data Field - Format 1 (Basic Format)
KeyDataBasic = GreedyRange(Struct('key_type'/KeyType,