The repository comprises a prototype of a DID-compliant identifier management system in the form of Smart Contracts (written in Solidity) for Ethereum. DID refers to Decentralized Identifiers according to the W3C recommendation Decentralized Identifiers (DIDs) v1.0. The prototype was designed and implemented based on the ideas sketched in the research article "Governance of Ledger-Anchored Decentralized Identifiers". For a comprehensive description of the concepts implemented in the prototype, readers are encouraged to consult the linked article.
The DIDRegistry contract serves as the verifiable data registry for the storage and retrieval of DIDs and the associated meta data (DID documents). Governance method contracts implement each a different DID update coordination mechanism, making it possible to coordinate an DID update among multiple entities on-chain. Each DID is customizable with its own DID update coordination mechanism.
This repository follows the structure of basic Hardhat project. It comes with a multipe contracts, tests for these contracts, and a Hardhat Ignition module that deploys that contracts.
To execute the tests and the code for Gas cost calculations exevute following commands
// install needed packages
npm install
// run the test scripts
npx hardhat testIn contracts folder you can find DIDregistry and DidRegistryRouter contract and folders with DID update coordination contracts, interfaces, and verifier contracts.