whitepaperConfidential compute2015
Enigma: Decentralized Computation Platform with Guaranteed Privacy
Secret Network. Guy Zyskind, Oz Nathan, Alex Pentland.
The 2015 Enigma paper from MIT: private contracts executed over secret-shared data, so nodes compute without seeing the raw inputs. Secret Network is a later project in this lineage, using different machinery. This page is about the Enigma paper, which the historic library does not hold.
The problem the paper names
A public contract reveals its inputs. Many agreements — a credit check, a medical rule, a sealed bid — cannot be published in order to be settled. Enigma's proposal is to split data across nodes, compute on the shares, and reveal only the agreed output.
What the design proposes
- Secret sharing splits an input so no single node holds it.
- A computation protocol produces an output without reconstructing the input on one machine.
- A public ledger can store the resulting commitment or payment while the data stays in the private layer.
How the mechanism is specified
- The privacy claim is as strong as the sharing threshold and the honesty assumption in the protocol.
- Performance and the class of programs that are practical are constraints the paper is working under, not details to skip.
- Secret Network's later trusted-execution design is a different technical bet. Do not cite Enigma as if it specified that implementation.
What this page does not treat as proven
- This is not the Secret Network documentation.
- Multi-party computation among a small, static set is a different trust model from a public chain.
- The paper does not make every smart contract private.
Why a venture studio still reads it
The right citation when a venture says 'private smart contracts' and means secret sharing, as opposed to a proof, a trusted enclave, or simply an access-control list. Those four are different products. Enigma is the first.
This is Blockchain Lab's reading of a public design paper. It is not the paper, not a copy of it, and not an offer of tokens, equity, custody or a partnership. Later network behaviour can diverge from the text. Nothing here is investment, legal or technical advice.