Hello,
On May 6, 2011, at 16:41 , Frank Morgner wrote:
>> 
>> Is there a way to inform opensc-pkcs11.so that a communication is
>> already established by Firefox and that SSH should start without using
>> pkcs11?
> 
> AFAIK, SCardConnect immediately returns an error if an application wants
> to access a reader which is already in exclusive use.  Have you tried
> switching on exclusive mode in the configuration file of OpenSC? (Note
> that this does not completely remove security issues.)

It should be possible and it would be a nice feature to have. Figuring out what 
will happen when the card *will* be available and what to do when a reader is 
in use by another application is a tricky question though (not all applications 
can easily reload tokens)

lock_login will not result in exclusive mode access to the reader (controlled 
by "connect_exclusive" configuration option, shared mode by default) but a 
transaction with SCardBeginTransaction being called on C_Login

Cheers,
Martin.
-- 
@MartinPaljak.net
+3725156495

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