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Multi-DRM services are needed to prevent leakage of AES-128-protected streaming video content

What is Digital Rights Management?

Content copyright owners can monitor how and by whom their content is used, as well as restrict the ways the content is copied or propagated, by using digital rights management (DRM).

Digital rights management (DRM) safeguards electronic media’s copyrights and ensures that content creators are compensated fairly for their work.

Video DRM industry leaders like Microsoft’s PlayReady, Google’s Widevine, and Apple’s FairPlay use it on over-the-top (OTT) platforms like Netflix, Hulu, and Amazon Prime.

Computers, smartphones, smart TVs, gaming consoles, ebook readers, and other smart gadgets can all benefit from digital rights management (DRM) technology.

The PlayReady DRM system from Microsoft and Video watermarking are just a few examples of how Netflix protects its premium digital content from piracy and restricts access to it.

Packaging for DRM-protected content

Using digital rights management (DRM), media content is encrypted and safeguarded against unauthorised use.

It is possible to package digital rights management (DRM) content in formats such as Dynamic Adaptive Streaming over HTTP (DASH) or in real time HTTP streaming in order to protect the original content (HLS).

The DASH format is also known as MPEG-DASH because it was developed by the Moving Picture Experts Group (MPEG).

Using the Advanced Encryption Standard (AES) has become the standard method of encrypting digital content in these formats.

The device on which the end user will view the encrypted data receives it.

In order to view the content, a customer must have a DRM licence and the encryption key issued by a DRM licence server. A multi-DRM service handles this process.

It is a 128-bit encryption standard known as AES-128.

Encryption standards like this one are recommended by the National Security Agency (NSA) because of their high level of security.

HLS, Adobe’s Real Time Messaging Protocol (RTMP), and DRM-protected content all encrypt video files using AES-128.

AES-128-encrypted files cannot be decrypted without access to the decryption key, according to industry experts.

As a symmetric key algorithm, AES encrypts and decrypts data using the same secret key.

Video files in the HLS method are encoded in blocks.

The previous block’s ciphertext is used to encrypt the new block.

Each block of the video file is decrypted separately using the chain cypher method to keep it safe.

It is possible for an unprotected decryption key to leak out of the AES algorithm, which is a strong method for encrypting a video file, but it does so by allowing an unprotected decryption key to fall into the hands of an unauthorised user.

OTT service providers are aware of this problem and use a multi-DRM service to protect their content and ensure that the licence key is delivered securely to the customer.

Because of this, the OTT industry needs a solid multi-DRM SaaS that can handle DRM licences issued by global leaders like Widevine.

Conclusion

Video DRM industry major names like Microsoft’s PlayReady, Google’s Widevine, and Apple’s FairPlay use it on over-the-top (OTT) platforms like Netflix, Hulu, and Amazon Prime. Using the Advanced Encryption Standard (AES) has become the standard method of encrypting digital content in these formats.

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