Security Level 1: Film content encryption can choose encryption algorithm by itself, and the playback device can choose authentication mechanism by itself. This shows that almost all HD players on the market can meet the requirements. There is no unique model or brand, and there is no saying that a specified device must be used.

 

 

 

Security Level 2: AES encryption, using PKI/CA digital certificate to represent equipment and authorized party, using RSA encryption algorithm, the AES key of film can be re-encrypted before transmission. This level of encryption mode requires a certain time of technology research and development, policy can not match this level in time;

 

 

 

Security Level 3: Authenticate and authorize by referring to the KDM key format of ISO 26430 series standard. That is to say, referring to the Chinese version of DCI (Digital Copyright Unique Identifier) under international standards, because of the technical difficulty, it needs a longer-term research and development process.

 

 

 

Security Level 4: Film encryption and packaging should meet the requirements of ISO 26429 series, and equipment authentication and authorization should meet the requirements of ISO 26430 series. That is the international DCI standard, the projection equipment currently used in the first-class courtyard. In the short run, a data return line has been added to the original private video equipment to reach the level of first and second security screening. However, in the long run, reaching the third and fourth levels of security is the trend of VOD courtyard line development. At present, private courtyards provide on-demand cinema projection equipment with three levels of security. At the end of the year, the same level of on-demand cinema projection equipment with the same level as the first level courtyard line has been introduced, which meets the four levels of security.

 

 

 

Just broadcasting offline movies is not the ultimate goal of on demand. From the point of view of the development of private cinema, the rise of this industry stems from the experience of watching movies and social interaction that some users tend to have better environment, which is the result of market segmentation.

 

 

 

In the early stage of the industry, the large films covering the offline of the first-level courtyard basically meet the needs of users. With the development of more services and content, the window period is ahead of schedule, which has become the trend of on-demand cinema. For example, 15 days after the first-class courtyard line, it will be shown on the second-class courtyard line. At this time, the security level of projection technology becomes a hard indicator. Lower-level projection equipment will not meet the requirements of film projection after the window period is advanced, resulting in delayed upload of content.

 

 

 

As a leading supplier of cinema equipment in the industry, Fubang Guangzhou is mainly engaged in digital equipment for system engineering such as digital cinema, 5D cinema and multi-functional cinema hall. It undertakes engineering design, equipment installation, system debugging and technical training, and sells international brand digital equipment such as Barco, NEC, Qfactor, Meyer sound and so on. Adhering to the core concept of "service is the ground, price is the sky", we will continue to combine the needs of the actual development of the market, and strive to provide you with more stable, better quality, more affordable cinema equipment.