Install pidgin-encryption by entering the following commands in the terminal:
sudo apt update sudo apt install pidgin-encryption
Description:
pidgin plugin that provides transparent encryption
Provides transparent encryption to all protocols supported by Pidgin. Can be activated on a per user basis or even automatically detected. Uses a private/public key system based on Mozilla's NSS.
Homepage: http://pidgin-encrypt.sourceforge.net
Version: 3.1-1.1build1
Section: universe/net