Hi there,

i have a couple of OLD cryptoflex cards which have been in use for
testing about a year ago. Now it seems to me that these cards are
blocked completely. Thus i cannot unblock them nor erase them. Even that
i know the correct PIN and PUK i still get "Authentication method
blocked" on unblock.

Is there a way to completely erase all keys pins and certificates from a
schlumberger cryptoflex card (without PUK)?

Output:
$ pkcs15-tool -u
Enter PUK [Security Officer PIN]:
Enter new PIN [Security Officer PIN]:
Enter new PIN again [Security Officer PIN]:
iso7816.c:99:iso7816_check_sw: Authentication method blocked
sec.c:204:sc_pin_cmd: returning with: Authentication method blocked
PIN unblocking failed: Authentication method blocked

$ pkcs15-init -EC -T --no-so-pin
iso7816.c:99:iso7816_check_sw: Authentication method blocked
sec.c:204:sc_pin_cmd: returning with: Authentication method blocked
pkcs15-lib.c:3045:do_get_and_verify_secret: Failed to verify
authentication key (ref=0x1)
Failed to erase card: Authentication method blocked

Anyone got some hint?

Cheers,
Simon


-- 
Simon Eisenmann

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[ struktur AG | Kronenstraße 22a | D-70173 Stuttgart ]
[ T. +49.711.896656.68 | F.+49.711.89665610 ]
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