NAME

       cardos-tool - displays information about Card OS-based security tokens or format them

SYNOPSIS

       cardos-tool [OPTIONS]

DESCRIPTION

       The cardos-tool utility is used to display information about smart cards and similar security tokens
       based on Siemens Card/OS M4.

OPTIONS

       --format, -f
           Format the card or token.

       --help, -h
           Print help message on screen.

       --info, -i
           Display information about the card or token.

       --reader arg, -r arg
           Number of the reader to use. By default, the first reader with a present card is used. If arg is an
           ATR, the reader with a matching card will be chosen.

       --startkey arg, -s arg
           Specify startkey for format.

       --change-startkey arg, -S arg
           Change Startkey with given APDU command.

       --verbose, -v
           Causes cardos-tool to be more verbose. Specify this flag several times to enable debug output in the
           opensc library.

       --wait, -w
           Causes cardos-tool to wait for the token to be inserted into reader.

AUTHORS

       cardos-tool was written by Andreas Jellinghaus <aj@dungeon.inka.de>.

opensc                                             04/07/2025                                     CARDOS-TOOL(1)