In 2018, the new HDCP 2.3 protocol was adopted.
Why you need HDCP?
You should know that the HDCP (High-bandwidth Digital Content Protection) protocol is required to display copyrighted video.
Heres an example of using HDCP: You have a TV and bought a Roku streaming unit.
HDCP is needed to watch new movies but not copy them.
How HDCP works?
When studios create movies and make digital copies, the movies metadata indicates that it is copyrighted.
Encryption is accomplished using special chips (security modules) produced, for example, bySynopsys.
You are logged into your Netflix account and want to watch new movies.
Security chips exchange encryption keys and establish a secure protocol.
However, the video transmitted over HDMI is securely encrypted.
Video is encoded and sent to another equipment through HDMI in an encrypted form via the HDMI port.
Differences between HDCP 2.3 and HDCP 2.2?
The HDCP 2.3 protocol was developed in 2018 and differs from the HDCP 2.2 protocol.
HDCP 2.3 and HDCP 2.2 compatibility
HDCP 2.3 is backward compatible with HDCP 2.2. and vice versa.
What does this mean for you as a user of different HDCP 2.2 and HDCP 2.3-enabled devices?
At this time, you will notice absolutely no problems connecting different devices.
