gnupg: GPGSM IMPORT

 
 5.6.8 Import certificates
 -------------------------
 
 To import certificates into the internal key database, the command
 
        IMPORT [--re-import]
 
    is used.  The data is expected on the file descriptor set with the
 'INPUT' command.  Certain checks are performed on the certificate.  Note
 that the code will also handle PKCS#12 files and import private keys; a
 helper program is used for that.
 
    With the option '--re-import' the input data is expected to a be a
 linefeed separated list of fingerprints.  The command will re-import the
 corresponding certificates; that is they are made permanent by removing
 their ephemeral flag.