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Apple Reference Image shifts image provenance trust from post-capture C2PA standards to a pre-signature model running on the sensor and Apple's Private Cloud Compute infrastructure. This approach utilizes quantum-secure signatures (ML-DSA-87) and neural networks to verify raw sensor characteristics before processing, effectively decoupling image authenticity from specific user identities or device credentials. The design prioritizes cryptographic binding at the point of capture while maintaining transparency through published development code and public transparency logs for binary inspection.

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Apple Reference Image Signs Photos at the Sensor, Moving Provenance Trust away from C2PA

InfoQ24 septembrie 20265 min de cititArticolul și perspectiva sunt în engleză.

Apple has published the design of Reference Image, an iPhone 18 Pro camera mode that signs pixel data at the sensor and develops it in Private Cloud Compute under an Apple signature. Developers on Hacker News and Reddit challenged what it proves, raising photographing a screen, the anonymity guarantee's dependence on Apple's cloud, and whether identity verification is the right use case. By Steef-Jan Wiggers

Apple has published the design of Apple Reference Image, an opt-in camera mode on the main sensor of the iPhone 18 Pro and iPhone 18 Pro Max that produces a timestamped photograph verifiable as a real sensor capture. The design moves trust in image provenance away from the editing chain certified by the C2PA standard and toward the sensor, Apple's Private Cloud Compute infrastructure, and Apple's own signing service. Apple's argument is that C2PA attaches provenance after capture, leaving the chain open to compromise before signing, and can tie an image to a public identity. In Reference mode, the sensor secure-boots…

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