Before it can be implemented into the websites and applications utilised by the media sector, the digital rights management (DRM) technology must first be integrated. This method safeguards digital content by encrypting the data used for digital rights management (DRM) video protection. DRM stands for digital rights management
It is used to prevent digital content from being utilised in a manner that is seen as being inappropriate. Before something like this can be put into action, it must first be completed, which is a process that includes a number of phases that need to be completed in a specific order. Before the video files can be sent to the user's device, they will first need to undergo a process known as transcoding, which is an encoding and decoding procedure. Before the files can be transferred, they first need to be converted into formats that are suitable for streaming. This is necessary because streaming requires certain file formats. Once all of the steps in this process have been completed, the files will be ready to be transferred. The vast majority of the time, the formats MPEG-DASH and HLS are the ones that are utilised for this specific purpose. [Case in point] [This is a prime example] [This is a prime example] Both MPEG-DASH and conventional encryption, which is abbreviated as CENC, are supported by digital rights management (DRM) systems like PlayReady and Google’s Widevine, which were developed by Microsoft and Google, respectively. MPEG-DASH is also supported by DRM systems. As a result of this, it has been proved that the encrypted packet can be decrypted utilising either of the DRM approaches; hence, both of these ways can be considered to be valid solutions because both of these ways use DRM. On the other hand, Apple's FairPlay uses the HLS packaging standard in addition to the SAMPLE-AES encryption standard. Both of these are industry-recognized protocols. Apple was the company that was responsible for developing both of these different standards. In order for the video asset to be useful across all three platforms, further encryption and packaging will be required as a direct result of this. a. The method that is most frequently utilised to finish this operation is one that involves the utilisation of a multi-DRM service. This method allows for the simultaneous encoding of videos into MPEG-DASH with CENC encryption and HLS with SAMPLE-AES encryption in a single process. This is due to the fact that utilising a multi-DRM solution is the most effective technique to carry out the aforementioned tasks. As a consequence of this factor, multi-DRM services make it conceivable to encode a number of videos all at once. This strategy, which constitutes both the approach and the method, is also the one that is most commonly used. Due to the implementation of this change, the process can now be carried out with a comparatively low number of interruptions.
Website proprietors who want to stream content using DRM video protection are required to generate an encryption key, an asset ID, and a key ID for every asset that is to be transmitted to the client in an encrypted format using DRM technology. This is one of the requirements that must be met in order to stream content. This is done in order to ensure that the content can be transmitted in a protected manner. This functionality, which is one of the criteria, must be present on your device in order for you to be able to stream content. This is done in order to ensure that the content will be able to be transmitted to the customer in a manner that is both risk-free and safe from potential harm. It is imperative that you satisfy this criteria because failing to do so will prevent you from being able to broadcast the content. Both FairPlay and CENC make use of a key that contains 128 bits and is encrypted using AES. The encryption method used is AES. This method results in the data being encrypted. However, due to the fact that FairPlay mandates the utilisation of an Initialization Vector in addition, this is not something that can be achieved for CENC (IV). CENC does not require an extra IV. The client-side content decryption module, also known as CDM, is able to use the keys to decode the material by utilising the client's own copy of the encryption algorithm once it has been granted permission to do so after the keys have been ingested into the licenced server and the CDM has been given permission to do so. As soon as the keys have been put to use to decrypt the information in the first place, this is a viable option.
Website administrators should always keep a backup copy of the keys that are used inside their content platform in their possession, since this is an absolute requirement. This is something that ought to be done on a consistent basis from now on. In the event that there is a switch to a different licence server in the not-too-distant future, it will be feasible to obtain the keys in a timely way as a result of this, which will make the switch as smooth as possible. When exactly the migration will take place is not something that can be predicted with any degree of accuracy. The vast majority of streaming platforms implement safety precautions to ensure that both the licence server and the subscription server are online and operational at all times. This is done with the goal of making DRM integration as uncomplicatedly simple as is humanly possible. The goal is to make DRM integration as simple as possible. On the other hand, the licencing server is the one that is accountable for verifying the player's identification and awarding the licence. On the other hand, the licencing server is the one that chooses whether or not the viewer is allowed to watch the content. The subscription server is the one that decides whether or not the viewer is allowed to view the content. Both servers work together to ensure that only users who have been given authorization to access the content may do so. This helps to prevent unauthorised access to the content.
Only when the Content Delivery Manager (CDM) has validated the licencing key and encrypted the video asset blocks will HTML5 players be allowed to play back the video.