openssl x509 -noout -text -in your_key_name.crt
openssl base64 -in input.txt -out output.b64
For years, the go-to for Windows binaries was a project hosted by Shining Light Productions. These were easy to install, came with a GUI installer, and were widely trusted. However, they relied on a donation model to pay for code-signing certificates. When donations lagged or priorities shifted, updates often stalled, leaving users on outdated, potentially vulnerable versions.
OpenSSL on Windows is a necessary guest that refuses to leave. Despite Microsoft’s best efforts to build proprietary walls around its own crypto APIs, the open-source world demands OpenSSL.
For the Windows administrator or developer, the lesson is clear: be cautious of where you get your binaries, keep your libraries updated, and learn to translate between the world of Linux PEM files and Windows PFX certificates. The bridge between these two ecosystems is built on OpenSSL, and it isn't going anywhere.