NAME

       u2f-host - Yubico Universal 2nd Factor (U2F) Host Tool

SYNOPSIS

       u2f-host [OPTIONS]...

DESCRIPTION

       u2f-host 1.0.0

       Perform  U2F host-side operations on the command line. Reads challenge from standard input
       and writes a response to standard output.

       -h, --help
              Print help and exit

       -V, --version
              Print version and exit

       -o, --origin=STRING
              Origin URL to use.

       -a, --action=ENUM
              Action to take.  (possible values="register", "authenticate", "sendrecv")

       -t, --touch
              Invert user-precense flag (on by default) (default=off)

       -d, --debug
              Print debug information to standard error (default=off)

       -c, --command=STRING
              Command for sendrecv action

REPORTING BUGS

       Report bugs at <https://github.com/Yubico/libu2f-host>.