The opencard framework supports the verification of secret codes
through the CardChannel.SendVerifyAPDU method. This method is final
and cannot be overriden. It in turn calls the
CardHolderVerificationGUI.sendVerifiedAPDU method in order to do the
work. The problem with this method is that it does not support
ciphering of the PIN should the card application require it.
The framework should provide a mechanism for this method to be passed
a helper object to do the ciphering should this be necessary. The
helper object could implement an interface with a methods such as
"cipherCHV" and "requiresCiphering" which would be called by the
CardHolderVerificationGUI object and would be implemented by each Card
Service.
Currently the only way to do it is to extend CardChannel and create a
new method "sendEncryptedVerifiedAPDU" that will do the ciphering. The
problem is that this extended class cannot access some needed variables
such as "slot_channel".
Does anybody have a better solution for this problem?
Regards,
Marc Maman
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