cryptcat - twofish encryption enabled version of nc(1)
cryptcat -k secret [-options] hostname port[s] [ports]
cryptcat -k secret -l -p port [-options] [hostname] [port]
This manual page documents briefly the cryptcat command. This manual
page was written for the Debian GNU/Linux distribution because the
original program does not have a manual page. It only documents the
features specific to cryptcat and not the features that are described
at length in the manpage for nc(1).
If you do not know nc then the chances are you won’t have much use for
cryptcat can act as a tcp or udp client or server - connecting to or
listening on a socket, while otherwise working as the standard Unix
cryptcat takes a password as a salt to encrypt the data being sent over
the connection. Without a specified password cryptcat will default to
the hardcoded password ‘‘metallica’’. Needless to say, failure to
specify a different password makes the connection as good as
This programs does not follow the usual GNU command line syntax, with
long options starting with two dashes (‘-’). A summary of the options
specific to cryptcat is included below.
Show summary of options.
-k secret password
Change the shared secret password to be used to establish a
This version of cryptcat does not support the -e command command line
option available in some versions of nc.
The original netcat was written by email@example.com.
cryptcat is the work of farm9 <firstname.lastname@example.org> with the help of Dan F,
Jeff Nathan, Matt W, Frank Knobbe, Dragos, Bill Weiss, Jimmy.
This manual page was written by Lars Bahner <email@example.com> for