#+TITLE: Using fish encryption with IRC

* Fish Irssi for chads

https://github.com/falsovsky/FiSH-irssi

** Installing required packages

- Debian / Ubuntu

  ~apt-get install build-essential irssi-dev libglib2.0-dev libssl-dev cmake git~

- Archgang

  ~pacman -S cmake pkg-config glib2 openssl irssi~
** compiling

1. ~git clone https://github.com/falsovsky/FiSH-irssi.git~
2. ~cd FiSH-irssi~
3. ~cmake .~
4. ~make~
5. ~cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr .~
6. ~make~
7. ~make install~
   (last one may or may not be needed)

**  Running

Just type ~/load fish~ in the program.
To have fish load at start-up run ~echo "load fish" >> /home/username/.irssi/startup~

Ran into: fish/core is ABI version 0 but Irssi is version 7, cannot load https://github.com/falsovsky/FiSH-irssi/issues/57

* Hexchat/Ubuntu/Debian
apt install hexchat-plugins

for more info:
https://fishlim.kodafritt.se/ubuntu_install.html
https://github.com/fladd/py-fishcrypt

* To Test fish encryption in APIRC:
/join #fish
/setkey 6CRi5rupyd6XfeKjghiLJ3yHHXCQ56EacFNytS
* Notes
Using Blowfish-ECB isn't a perfect method of encryption.

http://blog.bjrn.se/2009/01/proposal-for-better-irc-encryption.html

FiSH encrypts your messages in ECB mode (in other words, in independent blocks). If the same block appears two times it will be encrypted the same way both times. https://fishlim.kodafritt.se/

Note https://github.com/falsovsky/FiSH-irssi/issues/12 and https://github.com/falsovsky/FiSH-irssi/issues/63