Input document: Token-based Access Control for DASH (TAC)

[wilaw]

The DASH Industry Forum defined Token-based Access Control for DASH (TAC)

https://dash-industry-forum.github.io/docs/DASH-TAC-v1.0.htm

This should be examined to see if it is extensible enough for all adaptive segmented formats and use-cases.

The document defines a token-based access control mechanism that enables the signaling of Authentication and Authorization (AA) protocols for DASH-based streaming. An Access Token is a proof that a DASH client or user of the client have been successfully authenticated and authorized in some pre-determined AA Systems to access a particular DASH resource, e.g. DASH segments or MPDs. The document defines an Access Token format for accessing DASH resources and its transport between a DASH client and a server, hence ensuring interoperability between content providers and content delivery networks. The document focuses on the signaling and exchange mechanisms to facilitate Access Token-protected requests for the delivery of MPDs, licenses, keys and segments.