Category Archives: encryption

Lwm-Pulse arrives: First public version is out now.

Audio, Bluetooth, Ethernet and personal Wi-Fi in one Linux desktop panel.

lwm-pulse brings everyday device controls together without running the desktop interface as root. Adjust sound, pair and connect Bluetooth devices, and manage standalone iwd networking from one place. Automatic connections prefer working Ethernet, then visible Wi-Fi with a saved password; a manual Wi-Fi choice is respected for the rest of the panel session.

Wi-Fi support: only WPA2-Personal (PSK) and WPA3-Personal (SAE) networks are supported, including compatible WPA2/WPA3-Personal transition-mode networks. WPA2/WPA3-Enterprise (802.1X/EAP), open/Enhanced Open (OWE), WEP and legacy WPA-only networks are outside this release’s supported Wi-Fi configurations. This restriction concerns Wi-Fi, not the panel’s Ethernet support.

Password storage: GNOME Keyring for future logins; the Linux kernel user keyring for temporary in-memory retention; or Do not remember for no new retained copy. GNOME Keyring is the only supported persistent provider.

Release: September 12, 2026 · License: GPL-3.0-only (see LICENSE). Author and maintainer: JJ Posti — techtimejourney.net.

This is the first public release and may still contain errors. Review the installation and removal warnings before use. Report reproducible issues on the project’s GitHub issue tracker; feedback is welcome.

Source code and installation instructions are available at: https://github.com/postman721/Lwm-Pulse

Quick password based file encryption with ccrypt.

Gnugpg is in many ways the champion of encryption on Linux(personal opinion).

Sometimes there is a need to do quick password based encryption. This can be achieved with ccrypt.

Ccrypt should be available on standard Debian/Ubuntu or Centos8 repository resources.

I use Debian base here, but the steps should be similar on Centos8 or equivalent.

sudo apt-get install ccrypt -y

echo “I am going to be encrypted” >> ./example.txt

ccrypt ./example.txt

At this point a password for the encryption is needed. For this example, I used: hello.

After the encryption, my file will be found as: example.txt.cpt.

If I now try to read this cpt file, there will be nothing that can be understood on the output.

To decrypt and make the file readable again: ccdecrypt ./example.txt.cpt

After decryption, the example.txt is again found as a clear text file.