def __eac_pace_step1(self, data):
tlv_data = nPA_SE.__unpack_general_authenticate(data)
if tlv_data != []:
raise SwError(SW["WARN_NOINFO63"])
if self.at.keyref_is_mrz():
self.PACE_SEC = PACE_SEC(self.sam.mrz, eac.PACE_MRZ)
elif self.at.keyref_is_can():
self.PACE_SEC = PACE_SEC(self.sam.can, eac.PACE_CAN)
elif self.at.keyref_is_pin():
if self.sam.counter <= 0:
print("Must use PUK to unblock")
return 0x63c0, b""
if self.sam.counter == 1 and not self.sam.active:
print("Must use CAN to activate")
return 0x63c1, b""
self.PACE_SEC = PACE_SEC(self.sam.eid_pin, eac.PACE_PIN)
self.sam.counter -= 1
if self.sam.counter <= 1:
self.sam.active = False
elif self.at.keyref_is_puk():
if self.sam.counter_puk <= 0:
raise SwError(SW["WARN_NOINFO63"])
self.PACE_SEC = PACE_SEC(self.sam.puk, eac.PACE_PUK)
self.sam.counter_puk -= 1
else:
raise SwError(SW["ERR_INCORRECTPARAMETERS"])
self.sec = self.PACE_SEC.sec
if not self.eac_ctx:
eac.EAC_init()
self.EAC_CTX = EAC_CTX()
self.eac_ctx = self.EAC_CTX.ctx
eac.CA_disable_passive_authentication(self.eac_ctx)
ef_card_security = self.mf.select('fid', 0x011d)
ef_card_security_data = ef_card_security.data
eac.EAC_CTX_init_ef_cardsecurity(ef_card_security_data,
self.eac_ctx)
if self.ca_key:
ca_pubkey = eac.CA_get_pubkey(self.eac_ctx,
ef_card_security_data)
if 1 != eac.CA_set_key(self.eac_ctx, self.ca_key, ca_pubkey):
eac.print_ossl_err()
raise SwError(SW["WARN_NOINFO63"])
else:
# we don't have a good CA key, so we simply generate an
# ephemeral one
comp_pubkey = eac.TA_STEP3_generate_ephemeral_key(self.eac_ctx)
pubkey = eac.CA_STEP2_get_eph_pubkey(self.eac_ctx)
if not comp_pubkey or not pubkey:
eac.print_ossl_err()
raise SwError(SW["WARN_NOINFO63"])
# save public key in EF.CardSecurity (and invalidate the
# signature)
# FIXME this only works for the default EF.CardSecurity.
# Better use an ASN.1 parser to do this manipulation
ef_card_security = self.mf.select('fid', 0x011d)
ef_card_security_data = ef_card_security.data
ef_card_security_data = \
ef_card_security_data[:61+4+239+2+1] + pubkey + \
ef_card_security_data[61+4+239+2+1+len(pubkey):]
ef_card_security.data = ef_card_security_data
nonce = eac.PACE_STEP1_enc_nonce(self.eac_ctx, self.sec)
if not nonce:
eac.print_ossl_err()
raise SwError(SW["WARN_NOINFO63"])
resp = nPA_SE.__pack_general_authenticate([[0x80, len(nonce), nonce]])
self.eac_step += 1
return 0x9000, resp
def catest():
eac_ctx = EAC_CTX()
assert eac.EAC_CTX_init_ef_cardsecurity(EF_CARDSECURITY, eac_ctx.ctx) == 1