wrong hash calculation in 'emv scan -w'

Proxmark / proxmark3

Proxmark 3

http://www.proxmark.org/

GNU General Public License v2.0

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wrong hash calculation in 'emv scan -w' #793

Open pwpiwi opened 5 years ago

pwpiwi commented 5 years ago

'emv scan -w ' results in

[...]

INFO: -->Recovering certificates.
CA Public Key index 0xf
Verifying CA Public Key for a0:00:00:00:25 IDX 0f 1408 bits...OK
 Issuer PK recovered. RID a0:00:00:00:25 IDX 0f CSN 01:00:06
ERROR: Calculated wrong hash

INFO: decoded:    1f 99 41 d3 25 5b 44 2f 22 f8 62 ff 67 d1 c4 65 0c f2 68 2d

INFO: calculated: f2 54 ba 5b d6 74 01 f0 21 e7 9f 50 5d f9 ae 26 78 7b cd cb

 ICC PK recovered. RID a0:00:00:00:25 IDX 0f CSN 01:01:01

merlokk commented 5 years ago

Its ok because it just scans card and not make full transaction. https://github.com/Proxmark/proxmark3/blob/master/client/emv/cmdemv.c#L1711-L1713 maybe it needs to suppress errors? or let it be?

pwpiwi commented 5 years ago

Is this the same issue as in 'emv Roca'? Which I had fixed with PR #781?

merlokk commented 5 years ago

yes. can be fixed by ODAiList