Video encryption How to encrypt video?

Video encryption refers to protecting video data, preventing users from extracting the original video data, preventing unauthorized people from watching it at will, and preventing users from recording with screen recording software.

Common methods of video encryption

M3u8 Slice Encryption: It is widely used in various technologies for playing online video websites, and AES encryption algorithm is also used for slicing.

-Advantages: All kinds of browsers, mobile phones and applets are compatible and universal.

-Disadvantages: Because it is an open algorithm, the restoration is also very simple. There are many audio-visual sniffer tools that can be directly downloaded and restored, and the encryption effect is very weak. It's better to be white than nothing.

-Tear resistance: None

File stream encryption: file data is processed by using file stream encryption methods (such as XOR or AES). When playing, dynamically decrypt the corresponding data to the memory and play it again.

Advantages: the encryption and decryption speed is very fast. ?

Disadvantages: it must be decrypted by a special player, and the encryption strength is weak. Professional crackers can write tools to extract immediately.

-Anti-tearing: realized by player and APP.

Video frame-by-frame transcoding encryption: the encryption intensity is the highest, but it is also the most troublesome one in technical implementation. Software needs to read the internal coding of the source video and convert the video coding into private video coding frame by frame, which is usually rewritten as a private protocol based on H264 (i.e. non-standard H264 algorithm).

-Advantages: Due to the adoption of private video coding protocol, unless you are familiar with the video internal coding rules, there is no possibility of cracking or extracting, and the security is extremely high. However, this encryption method has high technical requirements for developers and is rarely adopted by companies.

Disadvantages: It must be decrypted by a dedicated player. The encryption process is similar to video transcoding, which takes a long time to encrypt. -Anti-tearing: realized by player and APP.

How to encrypt video

1. Download the Bumblebee video encryption system.

Download bumblebee video encryption system. When encrypting, you can choose to upload it to the cloud or send it directly to students offline.

2. Create a student account and authorize the course.

Log in to the background of Bumblebee, add a student account, and authorize the designated course (it also supports students to purchase courses directly in the player).

3. Students download the player and log in to watch.

Students can download the player and log in to watch the video. If offline mode is adopted, students need to import offline encrypted videos.