Netflix serves audio and video to millions of devices and subscribers across the globe. Each device has its own unique hardware and software, and differing security properties and capabilities. The communication between these devices and our servers must be secured to protect both our subscribers and our service.
When we first launched the Netflix streaming service we used a combination of HTTPS and a homegrown security mechanism called NTBA to provide that security. However, over time this combination started exhibiting growing pains. With the advent of HTML5 and the Media Source Extensions and Encrypted Media Extensions we needed something new that would be compatible with that platform. We took this as an opportunity to address many of the shortcomings of the earlier technology. The Message Security Layer (MSL) was born from these dual concerns.
more here.......http://techblog.netflix.com/2014/10/message-security-layer-modern-take-on.html
When we first launched the Netflix streaming service we used a combination of HTTPS and a homegrown security mechanism called NTBA to provide that security. However, over time this combination started exhibiting growing pains. With the advent of HTML5 and the Media Source Extensions and Encrypted Media Extensions we needed something new that would be compatible with that platform. We took this as an opportunity to address many of the shortcomings of the earlier technology. The Message Security Layer (MSL) was born from these dual concerns.
more here.......http://techblog.netflix.com/2014/10/message-security-layer-modern-take-on.html