stabbedbybrick

jonny , 1 year ago to piracy

Does anyone have any links for reverse engineering Spotify DRM? I didn't necessarily need it for myself, have plenty of music, and it would be a pretty inefficient means of piracy vs. BitTorrent or like yt-dlp, but I'm curious how it works.

It always seems to me like the analog gap is particularly gaping with audio, and I wonder how far down to the metal it's protected.

@piracy

stabbedbybrick , 1 year ago

Spotify, like most legit streaming services, use Google Widevine DRM, and you don’t reverse engineer it. At least not for the level that is required for this kind of content (L3). When you stream something in browser or device, the decryption module of that device is “talking” to the license server. If the identification goes through, the decryption keys are sent and the media gets played. So what you do is you extract that decryption module from a device, and then use scripts to send requests acting as that device, tricking the license server into sending you the decryption keys.

Once set up, and with the proper script, it can actually be even more efficient than other forms of piracy.