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global_platform: Add --suppress-key-check option to put_key command

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In some cases we may not want to auto-generate the Key Check Values.

Change-Id: I244b717b3e3aae6eb3ad512f9e23ff0b65958bb7
This commit is contained in:
Harald Welte
2024-02-06 20:35:33 +01:00
parent d6ecf272f5
commit e1c0b626d8
1 changed files with 7 additions and 0 deletions
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7
pySim/global_platform/__init__.py
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@@ -515,12 +515,17 @@ class ADF_SD(CardADF):
put_key_parser.add_argument('--key-type', choices=KeyType.ksymapping.values(), action='append', required=True, help='Key Type')
put_key_parser.add_argument('--key-data', type=is_hexstr, action='append', required=True, help='Key Data Block')
put_key_parser.add_argument('--key-check', type=is_hexstr, action='append', help='Key Check Value')
put_key_parser.add_argument('--suppress-key-check', action='store_true', help='Suppress generation of Key Check Values')
@cmd2.with_argparser(put_key_parser)
def do_put_key(self, opts):
"""Perform the GlobalPlatform PUT KEY command in order to store a new key on the card.
See GlobalPlatform CardSpecification v2.3 Section 11.8 for details.
The KCV (Key Check Values) can either be explicitly specified using `--key-check`, or will
otherwise be automatically generated for DES and AES keys. You can suppress the latter using
`--suppress-key-check`.
Example (SCP80 KIC/KID/KIK):
put_key --key-version-nr 1 --key-id 0x01 --key-type aes --key-data 000102030405060708090a0b0c0d0e0f
--key-type aes --key-data 101112131415161718191a1b1c1d1e1f
@@ -537,6 +542,8 @@ class ADF_SD(CardADF):
for i in range(0, len(opts.key_type)):
if opts.key_check and len(opts.key_check) > i:
kcv = opts.key_check[i]
elif opts.suppress_key_check:
kcv = ''
else:
kcv_bin = compute_kcv(opts.key_type[i], h2b(opts.key_data[i])) or b''
kcv = b2h(kcv_bin)