Post Ao588eMjCdOaJLnSTY by kaced@infosec.exchange
 (DIR) More posts by kaced@infosec.exchange
 (DIR) Post #Ao56kGiVNQNE3snDou by foone@digipres.club
       2024-11-15T22:56:29Z
       
       0 likes, 0 repeats
       
       I really want a video filter that applies VideoCipher II scrambling to the video.although really want I want is a rackmount machine to do it in hardware. maybe without the PDP-10
       
 (DIR) Post #Ao571yVLpOGQn35Dl2 by tedmielczarek@mastodon.social
       2024-11-15T22:59:40Z
       
       0 likes, 0 repeats
       
       @foone I mean, you can easily buy SBCs with FPGAs these days, right?
       
 (DIR) Post #Ao588eMjCdOaJLnSTY by kaced@infosec.exchange
       2024-11-15T23:12:05Z
       
       0 likes, 0 repeats
       
       @foone I’ve often thought about writing something like this, modern open implementations of analog video DRM. But is there any very specific public documentation about how exactly they worked, enough to properly reimplement them?
       
 (DIR) Post #Ao59JzwlP8y6NqcwQS by foone@digipres.club
       2024-11-15T23:25:27Z
       
       0 likes, 0 repeats
       
       @kaced the annoying thing? almost. There's not enough for someone like me to reimplement it, but maybe if you're very versed in analog NTSC signals you could figure it out from the available data
       
 (DIR) Post #Ao5BYAEg9B4AFytCbo by fsphil@mastodon.social
       2024-11-15T23:40:28Z
       
       0 likes, 0 repeats
       
       @kaced @foone There's been a few scrambling modes implemented in hacktv, but it's mostly focused on systems used on Europe (Videocrypt, Syster, etc). No VideoCiper II sadly.
       
 (DIR) Post #Ao5BYAy3QTMWWi7RKq by foone@digipres.club
       2024-11-15T23:50:24Z
       
       0 likes, 0 repeats
       
       @fsphil @kaced hmm, might be a good place to start though, maybe I can modify one of the existing scrambling modes to be Video Cipher 2
       
 (DIR) Post #Ao5C2RlBYZLhILXAMy by fsphil@mastodon.social
       2024-11-15T23:55:47Z
       
       0 likes, 0 repeats
       
       @foone @kaced It looks like they replaced the h-sync pulses with digital audio data, the closest we have to that is probably SiS (Sound-in-Sync). That's 625-line only atm but it wouldn't be hard to modify. The rest of the signal might be inverted too.https://www.youtube.com/watch?v=kZWmMOLVaSA