laforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/pysim/+/35890?usp=email )
Change subject: global_platform: Add --suppress-key-check option to put_key command ......................................................................
global_platform: Add --suppress-key-check option to put_key command
In some cases we may not want to auto-generate the Key Check Values.
Change-Id: I244b717b3e3aae6eb3ad512f9e23ff0b65958bb7 --- M pySim/global_platform/__init__.py 1 file changed, 18 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/pysim refs/changes/90/35890/1
diff --git a/pySim/global_platform/__init__.py b/pySim/global_platform/__init__.py index ca99f5f..4d553a7 100644 --- a/pySim/global_platform/__init__.py +++ b/pySim/global_platform/__init__.py @@ -515,12 +515,17 @@ 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 @@ 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)