The world of digital rights management (DRM) is a deliberately murky one, relying in part on security through obscurity. This poses a challenge for developers tasked with delivering paid-media, especially because much of the documentation is only delivered through vendor-specific enterprise portals. Nonetheless, DRM and secure content delivery is key to the modern Internet and important to understand. I recently had to dive into Widevine, probably the most popular DRM platform given that it's na...