gnupg: Scdaemon SERIALNO
6.6.1 Return the serial number
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This command should be used to check for the presence of a card. It is
special in that it can be used to reset the card. Most other commands
will return an error when a card change has been detected and the use of
this function is therefore required.
Background: We want to keep the client clear of handling card changes
between operations; i.e. the client can assume that all operations are
done on the same card unless he call this function.
SERIALNO
Return the serial number of the card using a status response like:
S SERIALNO D27600000000000000000000
The serial number is the hex encoded value identified by the '0x5A'
tag in the GDO file (FIX=0x2F02).
Info Catalog
gnupg: Scdaemon Protocol
gnupg: Scdaemon LEARN