This is the command u2f-host that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
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>.
Use u2f-host online using onworks.net services