Cryptography

Making secure backups in GNU/Linux with LUKS and rsync

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In today’s post I’m going to explain how to securely backup your files using LUKS and rsync. Please, if you decide to follow the steps depicted here, remember that I’m not responsible for any loss of data that this may cause. Proceed with care: you can easily erase important information if you don’t know what you’re doing. Let’s say that I want to backup my home directory on an external HDD, but I want my backup to be encrypted, too. Read More...

Setting up a Let's Encrypt SSL Certificate

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Since I first thought of creating this site I wanted to set up an SSL certificate and to use HTTPS by default. Enabling HTTPS on your website enhances the security of your users in several ways: Confidentiality: The messages between the clients (web browsers) and the web server are encrypted so no third party can read them. Integrity: Not only the messages are secret, but they also have integrity protections, so no one can modify them or inject messages in the conversation between your browser and the server. Read More...