How to restrict access to video content?

Question

HTML

There is a site for teaching students, the student logs in and can watch video lectures.
The video is in mp4 format and is played on the site via html5-video
How to restrict access to the video file so that a student cannot freely download the video file, or transfer the link to an unauthorized user?
And another question, are there video hostings that can help solve this problem? That is, the video on our site will be played from a third-party video hosting, the link to the video will be obtained through the video hosting API, and it will be valid only for a limited time and only for playing videos on our site.

Answer 1

A few years ago, I solved a similar problem through RTMPS streaming video through Amazon CloudFront. The downside is that I had to use Flash for the video player.

Answer 2

Whoever needs it badly will merge, whatever one may say. On the issue of links to an unauthorized user - prohibit direct access to video files. On the BackEnd, load resources only for those who are authorized and enable encryption.

Answer 3

As for video hosting, the option is Boomstream. They have an API, domain parking, and video access time limits.