Install idecrypt by entering the following commands in the terminal:
sudo apt update sudo apt install idecrypt
Description:
decrypt an encrypted response from pidentd
This package contains the idecrypt(8) utility which is used to decrypt encrypted responses from a pidentd server with DES encryption turned on.
Homepage: http://www.lysator.liu.se/~pen/pidentd/
Version: 3.0.19.ds1-8
Section: universe/utils