exclusive vs. shared smart card access

[NIIBE Yutaka]

On 09/01/2015 04:38 PM, Andreas Schwier wrote:
> Sharing a card is O.K while the PIN is not authenticated. Once the PIN
> is authenticated, an application should have exclusive access.
> 
> However this period should be as short as possible and an application
> must release exclusive access either explicitly by user request or time-out.

Thank you for the clarification.  I understand well.  I'll
try to improve scdaemon following this practice.

The situation of OpenPGPcard is that, (when it is configured as
not-forcing PIN authentication for every signing request,) the period
is forever currently.
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