[Cryptography] The Samsung global Blu-Ray meltdown
pgut001 at cs.auckland.ac.nz
Fri Jun 26 22:11:21 EDT 2020
Not sure if others have been following this, but since 18 June all Samsung
Blu-ray players globally have been stuck in a reboot loop with a period of
about five seconds, barring a very small number that have never been connected
to the Internet or had firmware updates. The only way to fix it is to send it
back to Samsung for a replacement, presumably for a reflash, with no-one yet
able to figure out what's causing it. Guesses are:
1. A certificate expired, since it hit globally at the same time.
2. Bad firmware update, would also match but you'd expect a more staggered
rollout worldwide, and seems odd that they'd deploy a device-killing update
without being aware of it.
3. Something triggered a DRM lockout, a variant of (1).
In any case it looks like an interesting illustration of the conflict between
security vs. availability if the reason is (1) or (3).
More information about the cryptography