File: gnupg.info,  Node: Scdaemon WRITEKEY,  Next: Scdaemon GENKEY,  Prev: Scdaemon SETATTR,  Up: Scdaemon Protocol

6.6.9 Write a key to a card
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       WRITEKEY [--force] KEYID

   This command is used to store a secret key on a smartcard.  The
allowed keyids depend on the currently selected smartcard application.
The actual keydata is requested using the inquiry 'KEYDATA' and need to
be provided without any protection.  With '--force' set an existing key
under this KEYID will get overwritten.  The key data is expected to be
the usual canonical encoded S-expression.

   A PIN will be requested in most cases.  This however depends on the
actual card application.