Encryption technologies used to protect Premium Videos

 Encryption

Encryption is the process of scrambling the video file, so that the video can only be played using the authorized content keys

 Digital Rights Management (DRM)

DRM systems manage the content keys used to encrypt the video, and to provide a secure environment in which video is decrypted

 Widevine

Widevine DRM is Google's DRM licensing technology for streaming encrypted videos in Chrome, Android and Chromecast

 AES-128

Advanced Encryption Standard (AES-128) is the encryption algorithm used by DRM systems to encrypt videos