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“root” and “leaf” license #5

Closed haudiobe closed 10 years ago

haudiobe commented 10 years ago

Does the concept of “root” and “leaf” license apply to all DRM schemes or do some schemes achieve key rotation through out-of-band means? The doc talks about combing leaf and root, but can you elaborate on how?

nthorwir commented 10 years ago

see my earlier comment: " I don't think that any of the standards mandates, recommends or even mentions the root/leaf concept. I believe it is OK to provide some clarification on how it can be used, but should it not be too specific. "

haudiobe commented 10 years ago

Conclusion: Root and leaf license concept is DRM specific and so are ways of combining them. I don’t have any more questions here.

haudiobe commented 10 years ago

In 1.4.1: Add clarification:

nthorwir commented 10 years ago

clarified as:

This may be used to download a Root license bound to this device, necessary to read the key rotation Segment licenses common to all Media Segments in the case where the DRM is using a root and leaf license hierarchy. Note that the presence and use of root and leaf licenses is optional and DRM spe-cific.

andrejp commented 10 years ago

Clarification is ok.