diskclaw/sslclaw

SSLClaw is a Windows desktop tool that automatically obtains free SSL certificates from Let's Encrypt, the widely used non-profit certificate authority. SSL certificates are what enable the padlock in a browser's address bar and encrypt traffic between a website and its visitors. Normally getting one requires command-line work, but this tool provides a graphical interface where you fill in your domain name and email, click a button, and the certificate is downloaded automatically. It supports two methods for proving you own a domain. The HTTP-01 method temporarily starts a small web server on your machine (or writes a file to your website's folder) so Let's Encrypt can verify ownership over the internet. The DNS-01 method works by adding a special record to your domain's DNS settings, which is useful for internal servers or situations without a public-facing web server, and it also supports wildcard certificates that cover all subdomains at once. A status indicator shows whether the connection to Let's Encrypt is working, and the interface cycles through your local IP addresses if you have multiple network cards. You would use this if you run a website or internal service on a Windows machine and need a free SSL certificate without using the command line. The project is written in C++ using native Windows APIs (Win32) for the interface, Windows cryptography functions for key management, and WinHTTP for network requests.