Please refer to Off-the-Record Messaging
Step 1 :
We need backports repos :
echo "deb http://ftp.debian.org/debian wheezy-backports main contrib non-free" >> /etc/apt/sources.list
Step 2 :
apt-get install libotr5-bin libotr5 libotr5-dev libgcrypt11-dev gnome-common
Step 3 :
git clone https://github.com/TingPing/hexchat-otr.git
Step 4 :
To to nick "samiux" with otr :
If you trust the connection :
You may consider to auth with password :
/otr auth [password]
If everything is okay, you will see all message from samiux is encrypted. You can confirmed with his nick, it will be *samiux* on the screen.
When chatting is finished :
Make sure you do not keep the log.
However, this program is not perfect. If you encounter any problem that cannot solve, you can uninstall it by :
sudo make uninstall
That's all! See you.