Mmastodon TechnologyTechnology first seen 15 h ago, last 15 h ago, peak #11
Researcher shows C2PA content credentials can be tricked on timestamps
Original: How to Hack Time, With C2PA https://www.da.vidbuchanan.co.uk/blog/hacking-time.html # Security # Cryptography # Tech
Security researcher David Buchanan has published a write-up describing how the C2PA content-provenance standard can be manipulated to forge or misrepresent timestamps, in a piece he calls "How to Hack Time, With C2PA". The post covers cryptographic weaknesses in how signed time claims are handled, sparking discussion among security and cryptography practitioners about the reliability of provenance metadata in media authentication.
Why now: A newly published technical write-up exposing a weakness in C2PA, a standard widely promoted for authenticating media, naturally draws attention from the security community.
Evidence
- How to Hack Time, With C2PA https://www.da.vidbuchanan.co.uk/blog/hacking-time.html # Security # Cryptography # Tech · lobsters@robot.villas · 2
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