August 5, 2016: cryptcat-1.2.1-1.1-{el6,el7}.{i686,x86_64}.rpm - Cryptcat is the standard netcat enhanced with twofish encryption
with ports for Windows NT, BSD and Linux. Twofish is courtesy of counterpane, and cryptix.
TCP/IP swiss army knife extended with twofish encryption - Cryptcat is a simple Unix utility which reads and writes data across network connections, using TCP or
UDP protocol while encrypting the data being transmitted.
It is designed to be a reliable "back-end" tool that can be used directly or easily driven by other programs and scripts.
At the same time, it is a feature-rich network debugging and exploration tool, since it can create almost any kind of connection you would need and has several interesting built-in capabilities.
Cryptcat has been added to the CERT Linux Forensics Tools (LFTR) Repository from the now defunct RPMForge repository.
February 19, 2010: cryptcat-1.2.1-1.fc1{0,1,2}.i686.rpm - Cryptcat is a lightweight version of netcat with integrated transport encryption capabilities.