![]() You can authenticate each other in 3 different ways, remembering that the best way to verify a key fingerprint or share a secret for authentication is to meet face to face or through encrypted email (GPG). Once you want to finish th OTR session type: /otr finishīut are you really sure the person you are chatting with is the person you think he/she is? Assuming you are both connected to same server, open a private chat session and then start OTR typing: /otr init OTR only works if both you and the person you want to chat have it installed and enabled. You need to wait until the key is generated to start using OTR. Once OTR is loaded type: /otr genkey the status of the process (might take a while) typing: /otr info Last step is to create a key to be used by your account on a certain IRC server. You can automatically load OTR at startup adding the load command in Irssi startup file, type in a separate terminal: echo “load otr” > ~/.irssi/startup Remember to save the configuration with: /save It’s handy to add in the status bar a notification that tells you the state of the OTR session, type: /statusbar window add otrĪ session can have 4 different states: plain text, finished, OTR, OTR (unverified). In Irssi to enable OTR plugin you must load it from main window (press Alt + 1), type: /load otr It works with IRC, Pidgin, Adium, Jitsi, WeeChat and many others. OTR protocol provides encryption, authentication, deniability and perfect forward secrecy for instant messaging chat sessions. For example you can access Indymedia IRC server via as well.Ĭheck the homepage of your favorite IRC server for instructions about SSL configuration. If you cannot install an IRC client or your client does not support SSL, a few most popular IRC servers allow you to connect directly via web browser using HTTPS (secure HTTP connection with SSL). ![]() Press Alt + 1 to go to the main window of Irssi and read the response, press Alt + Left (or Right) Arrow to jump between open sessions. To verify the secure connection you can whois your self typing: /whois your_nickname Improve this command with SSL: you need to add the -ssl option and the server port: /connect -ssl 6697 Assuming you want to connect to Indymedia IRC server, you would type: /connect SSL creates an encrypted connection between your client and the IRC server. Use the commands /connect to connect to a server, /join to join a channel (or create a new one if does not exist) and /query to start a private conversation with somebody.īy default IRC establish a not secure connection but is very easy to improve security using SSL and OTR. You can now connect to a server and chat on IRC. Official documentation of the OTR plugin suggests to set the following option to speed up sessions: /set cmd_queue_speed 1msec Specify your identity with those commands: /set real_name your_nickname Irssi is a minimal command line IRC client available for most Linux distributions, on recent Ubuntu and Debian is already compiled with SSL support but to enable OTR you need to install a plugin: apt-get install irssi irssi-plugin-otrĪfter installation start the client typing: irssi This article shows how to properly configure the open source IRC client Irssi to achieve an encrypted connection between your client and the server you connect and even more between you and the people you chat with. There are plenty of IRC servers with hundreds active channels each, all you need is a IRC client to access them. You can chat on IRC with people all around the world, using strong encryption, in a matter of minutes. IRC is a chat protocol active since early nineties, it belongs to a time when internet services were developed for the sake of communication rather than for profit, intrusive advertising and social control.
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