Users and Attesters

Actors in Unirep

Users 👤

receive data from attesters and are able to prove received data.

• Attesters sign up users by calling userSignUp on the Unirep contract with a signup proof.
• A user's identityCommitment is revealed at this time and recorded in the contract to prevent double signup.
• A user can later prove their identity to the protocol by re-creating the identity commitment with the secret values known only to the user.

Attesters 👑

can be thought of as applications. Attesters define their own data systems and are able to give attestations to users, which are combined to become the users' data.

• Attesters sign up by calling attesterSignUp on the Unirep contract.
• Attesters are given an attesterId that is their contract address.
• Attester information and attestation history are public; everyone can see each attestation and which attester submitted it to the Unirep contract.