Hello,

Le 26 avril 2012 09:18, helpcrypto helpcrypto <helpcry...@gmail.com> a écrit :
>> I don't know about the readers or their internals, but OpenSC for sure
>> does not support any kind of biometric authentication.
>
> PKCS#11 interface define both, ui callback (notify)

What is that? Can you be more specific?

> and that login can
> be made using pinpads/external devices. (C_Login can receive the pin,
> or can show a dialog if pin==NULL).

Yes. That is the flag CKF_PROTECTED_AUTHENTICATION_PATH in CK_TOKEN_INFO.

> Biometric/other kind of pinpads can be used using external libraries
> provided in config. This, of course, could mean a security risk 'cause
> someone could proxyfy the libraries.
>
> Couldnt opensc provide a way to do this safely?
> Could signed libraries solve this?

What is the threat model?
Who is the attacker and what can he do?

Signing a library will not solve much if the attacker has root access
or is the user itself.

Regards

-- 
 Dr. Ludovic Rousseau
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