At 23:34 +0100 on 01/08/2010, Bernd Oppolzer wrote about Re: y2k10
problem with credit cards in Germany:
But recent news sound as if the truth is more complicated. The
communication between the EMV chip and the ATM could be very
sophisticated, involving lots of messages in both directions, and
only some of these message types are affected by this error. So
maybe there is a way to still use the authorization capabilities of
the chip, but only using message types not affected by the error.
Maybe the ATMs inside germany and the POS terminals can now be
patched in such a way.
Since the error is occurring between the ATM and the Chip (but not
between the ATM and any other machine) just patch the ATM to send the
year as x'0a' not x'10' in those messages sent to the chip which have
a date in them. Since the chip is now getting a 'valid' date, it will
work correctly until the chips are fixed and replaced.
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