Ettercap is a network sniffer/interceptor/logger for ethernet LANs. It supports active and passive dissection of many protocols (even ciphered ones, like SSH and HTTPS). Data injection in an established connection and filtering on the fly is also possible, keeping the connection synchronized. Many sniffing modes were implemented to give you a powerful and complete sniffing suite. Plugins are supported. It has the ability to check whether you are in a switched LAN or not, and to use OS fingerprints (active or passive) to let you know the geometry of the LAN.
TEA Total is a collection of extremely small encryption tools. At the heart of TEA Total is the TEA (Tiny Encryption Algorithm): a fast and secure 128-bit private key algorithm which was developed and placed in the public domain by David Wheeler and Roger Needham of the Cambridge Computer Laboratory.
The Generic Software Wrappers Toolkit allows you to wrap closed-source applications to constrain or transform their behavior. Wrappers are written that intercept system calls and other system events, and allow you to deny, transform, log, or augment the system events. They are written in a custom language that abstracts away many of the gritty issues, allowing the wrapper author to concentrate on policy. Sample wrappers include dbfencrypt, which provides transparent access to "encrypted" files; controlledx, which limits the programs a process can execute; and id-seq, a trainable sequence-based intrusion detection wrapper.
ssldump is an SSLv3/TLS network protocol analyzer. It identifies TCP connections on the chosen network interface and attempts to interpret them as SSLv3/TLS traffic. When it identifies SSLv3/TLS traffic, it decodes the records and displays them in a textual form to the console. If provided with the appropriate keying material, it will also decrypt the connections and display the application data traffic.