SoK: Programmable Privacy
summary
Phase one write-up catalogues protocols (zero-knowledge proofs, MPC, threshold homomorphic encryption, FHE, and TEEs), evaluates what each actually enables for Zcash, and ranks integration options by invasiveness: extend note payloads to carry verification data, add a TEE overlay network that verifies committed ciphertexts, build a privacy-preserving bridge to Anoma requiring threshold validators, or adopt on-chain private execution like Aztec/Penumbra. Penumbra uses additive threshold encryption to batch swaps; Suave chain and Zama illustrate searcher-on-chain and FHE approaches. Paper aims to formalize privacy/security defs; most systems lack protocol-level security proofs.
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chapters (5)
- 0:00Start
- 9:59framework
- 14:39off-chain private state: applications (single-user)
- 19:59off-chain private state: applications (multi-user)
- 25:15on-chain private state: applications
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