A rather common reason for a key not being usable is because the device does not meet security robustness requirements. Signaling this as "internal-error" is misleading and uninformative. An "insufficient-security" MediaKeyStatus for this condition would be very useful, indicating that the key should perhaps not have been provided at all.
kitchen5203
commented
6 years ago
A rather common reason for a key not being usable is because the device does not meet security robustness requirements. Signaling this as "internal-error" is misleading and uninformative. An "insufficient-security" MediaKeyStatus for this condition would be very useful, indicating that the key should perhaps not have been provided at all.