The zkshim Linux kernel module provides a kernel driver that intercepts and redirects network packets for use by Zero-Knowledge Systems' Freedom client. It is not the entire Freedom client (click here for the entire client), and does not operate by itself as functional end-user software, but is very useful for implementing certain secure networking solutions. This code is intended for developers and those curious about the Freedom kernel interface.

Unlike the rest of the Freedom client, this code is released under the terms of the GNU General Public License, and you are encouraged to use, modify, and incorporate this code according to the license. Please see the accompanying COPYING file for more details.

A 20 Oct 2000 snapshot of the shim is available here. Please note that there have been substantial changes and security updates.