News for hackers. Stuff that matters.

A comment on Sony software updates breaks movie theater projectors. Parent comment

Re:Sony software updates breaks movie theater projectors by FirmwareBurner on Sunday December 31, 2023 @05:33PM (#38828107)
Sony is a Japanese company but it's also a multinational company consisting of hundreds of companies they aquired over the years all over the globe. It's therefore a relatively small chance is has something to do with Japan specifically.
[ Parent | on HN ]
Re:Sony software updates breaks movie theater projectors by swells34 on Sunday December 31, 2023 @05:39PM (#38828150)
It likely depends on where the programmer who has the original cert issued was... so quite likely Japan, given the evidence
[ Parent | on HN ]
Re:Sony software updates breaks movie theater projectors by joseph8th on Sunday December 31, 2023 @11:48PM (#38829799)
This is the most likely, yup. The certs are unlikely to have a precise end-of-year expiration. It will be whatever the expiration is for the last certs loaded.

10 years in cinema IoT, here. Features are encrypted by Key Delivery Messages (KDM), and those are per cinema server/projector "marriage". No KDM will be considered valid if the server certs are expired.

This should make 2024 interesting for me.

[ Parent | on HN ]