零知识证明zkDaily
ZKP Frontier Tracker 🎯
Fri
09.18
2026
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https://security.apple.com/blog/apple-reference-image/
AppleImage Provenance

Notes

零知识证明zkDaily
Q&A Deep Dive 💬
Fri
09.18
2026
beginner
How does it differ from C2PA?
C2PA attaches provenance after capture, while Apple builds hardware trust from sensor capture.
answer
intermediate
How does PCC verify sensor-device pairing?
PCC verifies sensor, SEP, and device manifest certificate chains to confirm they belong to the same iPhone.
answer
expert
Which post-quantum signature is used?
The final JPEG is signed with a composite of RSA-3072-PSS-SHA512 and ML-DSA-87 for post-quantum security.
answer