SILC (Secure Internet Live Conferencing) is a protocol which provides secure conferencing services on the Internet over insecure channel. SILC superficially resembles IRC, although they are very different internally. They both provide conferencing services and have almost the same set of commands. Other than that, they are nothing alike. The SILC is secure and the network model is entirely different compared to IRC.
SILC provides security services that any other conferencing protocol does not offer today. The most popular conferencing service, IRC, is entirely insecure. If you need secure place to talk to some person or to group of people over the Internet, IRC or any other conferencing service, for that matter, cannot be used. Anyone can see the messages and their contents in the IRC network. And the most worse case, some is able to change the contents of the messages. Also, all the authentication data, such as, passwords are sent plaintext in IRC.
SILC is much more than just about `encrypting the traffic'. That is easy enough to do with IRC and SSL hybrids, but even then the entire network cannot be secured, only part of it. SILC provides security services, such as sending private messages entirely secure; no one can see the message except you and the real receiver of the message. SILC also provides same functionality for channels; no one except those clients joined to the channel may see the messages destined to the channel. Communication between client and server is also secured with session keys and all commands, authentication data (such as passwords etc.) and other traffic is entirely secured. The entire network, and all parts of it, is secured. We are not aware of any other conferencing protocol providing same features at the present time.
SILC has secure key exchange protocol that is used to create the session keys for each connection. SILC also provides strong authentication based on either passwords or public key authentication. All authentication data is always encrypted in the SILC network. Each connection has their own session keys, all channels have channel specific keys, and all private messages can be secured with private message specific keys.
Samadhi tries to fill the hole in the current applications of SILC protocol. Currently, in IRC and other chatting networks, you can find those little artificial friends, which provide you with some services. If you want to look up a unix manual page, record some news to be displayed on the webpage of a channel or just want to keep your channel safe from intruders, these little programs can come handy.
SILC is designed as a secure and safe place to live, so some things like preventing channel takeovers are not really essential. But since SILC comes with security bundled in, Samadhi can come handy in various other issues, that were not possible before. Think about remote interactive system administration (sending commands to groups of machines, remote logging, etc.), transmit of secure information, distributed anonymous web browsing, and so on. Samadhi can also hold up the job of what you were used to in IRC - providing information, collecting statistics about the community or just keeping up the webpage of community/channel up to date with latest information.
What does it do?
What you program it to do. Samadhi is a framework for programming bots, not a bot itself. You can make it to do what you need to do and in programming language used to (currently supported are C, Perl and Python).
You will also find some useable plugins in the distribution of samadhi itself.
Samadhi is a free software distributed under the terms of GNU GPL v2. It is (c) 2002 Juraj Bednar <firstname.lastname@example.org>