Vitalik Buterin: Interfold Delivers MACI Privacy Protocol

Vitalik Buterin spotlighted Interfold as the realization of MACI concepts he promoted for nearly a decade, enabling threshold encryption keys, onchain ZKP-eligible votes, and FHE-based arbitrary computations followed by threshold decryption for secret-ballot use cases.

The protocol achieves unconditional voter anonymity via ZK-SNARKs, Ethereum-guaranteed censorship resistance, and ZK-verified FHE correctness, though current ZK-over-FHE limits restrict it to additive tallies with ongoing work on optimistic alternatives.

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