PhotoProof - Cryptographic Image Authentication for Any Set of Permissible Transformations

Explore a groundbreaking approach to image authentication presented at the 2016 IEEE Symposium on Security & Privacy. Delve into PhotoProof, a novel cryptographic method that allows for secure verification of images that have undergone permissible transformations. Learn how this technique addresses the challenge of maintaining image authenticity in an era where digital manipulation is commonplace. Discover how PhotoProof utilizes cryptographic proofs to attach succinct, zero-knowledge attestations to legitimately derived images, enabling verification without revealing sensitive information. Understand the system's flexibility in supporting various transformations while maintaining strong security guarantees. Examine the underlying Proof-Carrying Data (PCD) primitive and its application in secure distributed computations. Gain insights into the construction, security proofs, and practical implementation of PhotoProof through a working prototype demonstration.