[didntcheck]

Yeah. People have been hoping for a signed "Photoshop-proof camera" since digital image manipulation was invented, but it has the same limitations as any form of DRM. It only slows people down a bit. There's also the analog hole - i.e. just stick your "attested" microphone in front of a speaker

[kj4ips]

Canon tried to do this with their ODD system, and they got kinda close, but it is possible to extract the key from a given camera, and forge signatures.

Their verification system also seems to include a smartcard or SD card-like thing (which might be doing something special, or might just be DRM)

[lionkor]

or rip out the wires and attach whatever speaker you want, not really detectable

[flangola7]

It is detectable if the other components are cryptographically paired, like they are in newer iPhones.

Go try to swap a camera or screen between two identical iPhone models, it won't work.